Index Page, California Flora, Jepson eFlora

Vascular Plants of California
Key to families | Table of families and genera

Index Page: H

Scientific Name	Common Name
Habenaria dilatata var. leucostachys (Under Platanthera dilatata var. leucostachys)		Synonym
Habenaria elegans var. elata (Under Piperia elongata)		Synonym
Habenaria elegans var. maritima (Under Piperia elegans subsp. elegans)		Synonym
Habenaria elegans var. multiflora (Under Piperia elegans subsp. elegans)		Synonym
Habenaria greenei (Under Piperia elegans subsp. elegans)		Synonym
Habenaria leucostachys var. virida (Under Platanthera sparsiflora)		Synonym
Habenaria saccata (Under Platanthera stricta)		Synonym
Habenaria unalascensis (Under Piperia unalascensis)		Synonym
Hackelia ↳ Key to Hackelia	STICKSEED
Hackelia amethystina	AMETHYST STICKSEED	Native
Hackelia bella	BEAUTIFUL STICKSEED	Native
Hackelia brevicula	POISON CANYON STICKSEED	Native
Hackelia californica	CALIFORNIA STICKSEED	Native
Hackelia cusickii	CUSICK'S STICKSEED	Native
Hackelia floribunda	MANY-FLOWERED STICKSEED	Native
Hackelia jessicae (Under Hackelia micrantha)		Synonym
Hackelia longituba (Under Hackelia velutina)		Synonym
Hackelia micrantha	JESSICA'S STICKSEED, MEADOW STICKSEED	Native
Hackelia mundula	PINK-FLOWERED STICKSEED	Native
Hackelia nervosa	SIERRAN STICKSEED	Native
Hackelia setosa	BRISTLY STICKSEED, SISKIYOU STICKSEED	Native
Hackelia sharsmithii	SHARSMITH'S STICKSEED	Native
Hackelia velutina	VELVETY STICKSEED	Native
Hainardia	BARB GRASS
Hainardia cylindrica		Naturalized
Halerpestes cymbalaria (Under Ranunculus cymbalaria)		Synonym
Halimodendron
Halimodendron halodendron	RUSSIAN SALT TREE	Agricultural weed
Halimolobos
Halimolobos diffusa var. jaegeri (Under Halimolobos jaegeri)		Synonym
Halimolobos jaegeri		Native
Halimolobos virgata (Under Transberingia bursifolia subsp. virgata)		Synonym
Halogeton
Halogeton glomeratus	SALTLOVER	Naturalized
Haloragaceae	WATER-MILFOIL FAMILY
Haplopappus acaulis (Under Stenotus acaulis)		Synonym
Haplopappus acradenius subsp. bracteosus (Under Isocoma acradenia var. bracteosa)		Synonym
Haplopappus acradenius subsp. eremophilus (Under Isocoma acradenia var. eremophila)		Synonym
Haplopappus apargioides (Under Pyrrocoma apargioides)		Synonym
Haplopappus arborescens (Under Ericameria arborescens)		Synonym
Haplopappus bloomeri (Under Ericameria bloomeri)		Synonym
Haplopappus brickellioides (Under Hazardia brickellioides)		Synonym
Haplopappus canus (Under Hazardia cana)		Synonym
Haplopappus carthamoides subsp. cusickii (Under Pyrrocoma carthamoides var. cusickii)		Synonym
Haplopappus cuneatus var. spathulatus (Under Ericameria cuneata var. spathulata)		Synonym
Haplopappus eastwoodiae (Under Ericameria fasciculata)		Synonym
Haplopappus ericoides (Under Ericameria ericoides)		Synonym
Haplopappus ericoides subsp. blakei (Under Ericameria ericoides)		Synonym
Haplopappus eximius (Under Tonestus eximius)		Synonym
Haplopappus eximius subsp. peirsonii (Under Tonestus peirsonii)		Synonym
Haplopappus gilmanii (Under Ericameria gilmanii)		Synonym
Haplopappus greenei (Under Ericameria greenei)		Synonym
Haplopappus hirtus subsp. hirtus (Under Pyrrocoma hirta var. hirta)		Synonym
Haplopappus hirtus subsp. lanulosus (Under Pyrrocoma hirta var. lanulosa)		Synonym
Haplopappus hirtus var. lanulosus (Under Pyrrocoma hirta var. lanulosa)		Synonym
Haplopappus lanceolatus (Under Pyrrocoma lanceolata var. lanceolata)		Synonym
Haplopappus lanceolatus subsp. tenuicaulis (Under Pyrrocoma lanceolata var. lanceolata)		Synonym
Haplopappus laricifolius (Under Ericameria laricifolia)		Synonym
Haplopappus linearifolius (Under Ericameria linearifolia)		Synonym
Haplopappus lucidus (Under Pyrrocoma lucida)		Synonym
Haplopappus lyallii (Under Tonestus lyallii)		Synonym
Haplopappus macronema (Under Ericameria discoidea)		Synonym
Haplopappus nanus (Under Ericameria nana)		Synonym
Haplopappus occidentalis (Under Benitoa occidentalis)		Synonym
Haplopappus ophitidis (Under Ericameria ophitidis)		Synonym
Haplopappus peirsonii (Under Tonestus peirsonii)		Synonym
Haplopappus pinifolius (Under Ericameria pinifolia)		Synonym
Haplopappus propinquus (Under Ericameria brachylepis)		Synonym
Haplopappus racemosus subsp. congestus (Under Pyrrocoma racemosa var. congesta)		Synonym
Haplopappus racemosus subsp. glomeratus (Under Pyrrocoma racemosa var. paniculata)		Synonym
Haplopappus racemosus subsp. pinetorum (Under Pyrrocoma racemosa var. pinetorum)		Synonym
Haplopappus racemosus subsp. sessiliflorus (Under Pyrrocoma racemosa var. sessiliflora)		Synonym
Haplopappus squarrosus subsp. grindelioides (Under Hazardia squarrosa var. grindelioides)		Synonym
Haplopappus squarrosus subsp. obtusus (Under Hazardia squarrosa var. obtusa)		Synonym
Haplopappus squarrosus subsp. stenolepis (Under Hazardia stenolepis)		Synonym
Haplopappus stenophyllus (Under Nestotus stenophyllus)		Synonym
Haplopappus suffruticosus (Under Ericameria suffruticosa)		Synonym
Haplopappus uniflorus subsp. gossypinus (Under Pyrrocoma uniflora var. gossypina)		Synonym
Haplopappus venetus subsp. argutus (Under Isocoma arguta)		Synonym
Haplopappus venetus subsp. furfuraceus (Under Isocoma menziesii var. menziesii)		Synonym
Haplopappus whitneyi subsp. discoideus (Under Hazardia whitneyi var. discoidea)		Synonym
Harmonia ↳ Key to Harmonia
Harmonia doris-nilesiae	NILES' HARMONIA	Native
Harmonia guggolziorum	GUGGOLZ'S HARMONIA	Native
Harmonia hallii	HALL'S HARMONIA	Native
Harmonia nutans	NODDING HARMONIA	Native
Harmonia stebbinsii	STEBBINS' HARMONIA	Native
Harpagonella	GRAPPLINGHOOK
Harpagonella palmeri	PALMER'S GRAPPLINGHOOK	Native
Hartmaniella
Hartmaniella sierrae	SIERRA STARWORT	Native
Hastingsia ↳ Key to Hastingsia
Hastingsia alba		Native
Hastingsia serpentinicola		Native
Hazardia ↳ Key to Hazardia	GOLDENBUSH
Hazardia brickellioides	BRICKELL GOLDENBUSH	Native
Hazardia cana	SAN CLEMENTE ISLAND HAZARDIA	Native
Hazardia detonsa	ISLAND HAZARDIA	Native
Hazardia orcuttii	ORCUTT'S HAZARDIA	Native
Hazardia squarrosa	SAW-TOOTHED GOLDENBUSH	Native
Hazardia squarrosa var. grindelioides		Native
Hazardia squarrosa var. obtusa		Native
Hazardia squarrosa var. squarrosa		Native
Hazardia stenolepis		Native
Hazardia whitneyi	WHITNEY'S GOLDENBUSH	Native
Hazardia whitneyi var. discoidea		Native
Hazardia whitneyi var. whitneyi		Native
Hecastocleis
Hecastocleis shockleyi		Native
Hedeoma ↳ Key to Hedeoma	MOCK PENNYROYAL
Hedeoma drummondii	DRUMMOND'S FALSE PENNYROYAL	Native
Hedeoma nana subsp. californica	CALIFORNIA MOCK PENNYROYAL	Native
Hedeoma nanum subsp. californicum (Under Hedeoma nana subsp. californica)		Orthographic variant
Hedera ↳ Key to Hedera	IVY
Hedera canariensis	CANARY ISLANDS IVY	Naturalized
Hedera helix	ENGLISH IVY	Naturalized
Hedera helix subsp. canariensis (Under Hedera canariensis)		Synonym
Hedera helix subsp. helix (Under Hedera helix)		Synonym
Hedychium	GINGER-LILY
Hedychium flavescens	YELLOW GINGER	Waif
Hedypnois
Hedypnois cretica (Under Hedypnois rhagadioloides)		Synonym
Hedypnois rhagadioloides	CRETE WEED	Naturalized
Heleniastrum autumnale (Under Helenium autumnale)		Synonym
Heleniastrum bigelovii (Under Helenium bigelovii)		Synonym
Heleniastrum bolanderi (Under Helenium bolanderi)		Synonym
Heleniastrum occidentale (Under Helenium bigelovii)		Synonym
Heleniastrum puberulum (Under Helenium puberulum)		Synonym
Heleniastrum rivulare (Under Helenium bigelovii)		Synonym
Helenium ↳ Key to Helenium	SNEEZEWEED
Helenium altissimum (Under Helenium autumnale)		Synonym
Helenium amarum var. amarum		Naturalized
Helenium autumnale		Native
Helenium autumnale var. canaliculatum (Under Helenium autumnale)		Synonym
Helenium autumnale var. fylesii (Under Helenium autumnale)		Synonym
Helenium autumnale var. grandiflorum (Under Helenium autumnale)		Synonym
Helenium autumnale var. montanum (Under Helenium autumnale)		Synonym
Helenium autumnale var. parviflorum (Under Helenium autumnale)		Synonym
Helenium bigelovii		Native
Helenium bigelovii var. festivum (Under Helenium bolanderi)		Synonym
Helenium bolanderi		Native
Helenium californicum (Under Helenium puberulum)		Synonym
Helenium canaliculatum (Under Helenium autumnale)		Synonym
Helenium decurrens (Under Helenium puberulum)		Synonym
Helenium edwardsianum (Under Helenium autumnale)		Synonym
Helenium grandiflorum (Under Helenium autumnale)		Synonym
Helenium hoopesii (Under Hymenoxys hoopesii)		Synonym
Helenium huronense (Under Helenium autumnale)		Synonym
Helenium latifolium (Under Helenium autumnale)		Synonym
Helenium macranthum (Under Helenium autumnale)		Synonym
Helenium montanum (Under Helenium autumnale)		Synonym
Helenium parviflorum (Under Helenium autumnale)		Synonym
Helenium puberulum		Native
Helenium pubescens (Under Helenium puberulum)		Synonym
Helenium rivulare (Under Helenium bigelovii)		Synonym
Helenium rosilla (Under Helenium puberulum)		Synonym
Helenium tenuifolium (Under Helenium amarum var. amarum)		Synonym
Heleochloa schoenoides (Under Crypsis schoenoides)		Synonym
Helianthella ↳ Key to Helianthella
Helianthella californica		Native
Helianthella californica subsp. californica (Under Helianthella californica var. californica)		Synonym
Helianthella californica subsp. nevadensis (Under Helianthella californica var. nevadensis)		Synonym
Helianthella californica subsp. shastensis (Under Helianthella californica var. shastensis)		Synonym
Helianthella californica var. californica		Native
Helianthella californica var. nevadensis		Native
Helianthella californica var. shastensis		Native
Helianthella castanea	DIABLO HELIANTHELLA	Native
Helianthemum aldersonii (Under Crocanthemum aldersonii)		Synonym
Helianthemum greenei (Under Crocanthemum greenei)		Synonym
Helianthemum guttatum (Under Tuberaria guttata)		Synonym
Helianthemum scoparium (Under Crocanthemum aldersonii)		Synonym, in part
Helianthemum scoparium (Under Crocanthemum scoparium)		Synonym, in part
Helianthemum scoparium (Under Crocanthemum scoparium var. scoparium)		Synonym, in part
Helianthemum scoparium (Under Crocanthemum scoparium var. vulgare)		Synonym, in part
Helianthemum scoparium (Under Crocanthemum suffrutescens)		Synonym, in part
Helianthemum scoparium var. aldersonii (Under Crocanthemum aldersonii)		Synonym
Helianthemum scoparium var. scoparium (Under Crocanthemum scoparium var. scoparium)		Synonym
Helianthemum scoparium var. vulgare (Under Crocanthemum scoparium var. vulgare)		Synonym
Helianthemum suffrutescens (Under Crocanthemum suffrutescens)		Synonym
Helianthus ↳ Key to Helianthus	SUNFLOWER
Helianthus annuus		Native
Helianthus annuus subsp. jaegeri (Under Helianthus annuus)		Synonym
Helianthus annuus subsp. lenticularis (Under Helianthus annuus)		Synonym
Helianthus annuus var. macrocarpus (Under Helianthus annuus)		Synonym
Helianthus bolanderi	BOLANDER'S SUNFLOWER	Native
Helianthus californicus	CALIFORNIA SUNFLOWER	Native
Helianthus ciliaris	BLUEWEED	Naturalized
Helianthus cusickii	CUSICK'S SUNFLOWER	Native
Helianthus exilis (Under Helianthus bolanderi)		Synonym
Helianthus gracilentus	SLENDER SUNFLOWER	Native
Helianthus inexpectatus	NEWHALL SUNFLOWER	Native
Helianthus niveus subsp. canescens (Under Helianthus petiolaris subsp. canescens)		Synonym
Helianthus niveus subsp. tephrodes	ALGODONES DUNES SUNFLOWER	Native
Helianthus nuttallii		Native
Helianthus nuttallii subsp. nuttallii	NUTTALL'S SUNFLOWER	Native
Helianthus nuttallii subsp. parishii	LOS ANGELES SUNFLOWER	Native
Helianthus petiolaris	PRAIRIE SUNFLOWER	Native
Helianthus petiolaris subsp. canescens		Native
Helianthus petiolaris subsp. petiolaris		Naturalized
Helianthus winteri		Native
Helichrysum
Helichrysum orbiculare (Under Plecostachys serpyllifolia)		Synonym
Helichrysum petiolare	LICORICE PLANT	Naturalized
Helichrysum serpyllifolium (Under Plecostachys serpyllifolia)		Synonym
Heliomeris	GOLDEN-EYE
Heliomeris multiflora var. nevadensis	NEVADA GOLDENEYE	Native
Heliotropiaceae	HELIOTROPE FAMILY
Heliotropium ↳ Key to Heliotropium	HELIOTROPE
Heliotropium amplexicaule	FRAGRANT HELIOTROPE	Naturalized
Heliotropium californicum (Under Heliotropium convolvulaceum var. californicum)		Synonym
Heliotropium convolvulaceum var. californicum	MORNING-GLORY HELIOTROPE	Native
Heliotropium curassavicum var. oculatum	SEASIDE HELIOTROPE, ALKALI HELIOTROPE	Native
Heliotropium europaeum	EUROPEAN HELIOTROPE	Naturalized
Heliotropium oculatum (Under Heliotropium curassavicum var. oculatum)		Synonym
Heliotropium spathulatum subsp. oculatum (Under Heliotropium curassavicum var. oculatum)		Synonym
Helminthotheca	OX-TONGUE
Helminthotheca echioides	BRISTLY OX-TONGUE	Naturalized
Helxine soleirolii (Under Soleirolia soleirolii)		Synonym
Hemicarpha micrantha (Under Lipocarpha micrantha)		Synonym
Hemicarpha micrantha var. aristulata (Under Lipocarpha aristulata)		Synonym
Hemicarpha micrantha var. minor (Under Lipocarpha micrantha)		Synonym
Hemicarpha occidentalis (Under Lipocarpha occidentalis)		Synonym
Hemieva
Hemieva ranunculifolia		Native
Hemitomes	GNOME PLANT
Hemitomes congestum		Native
Hemizonella	MINIATURE TARWEED
Hemizonella minima		Native
Hemizonia	HAYFIELD TARWEED
Hemizonia angustifolia (Under Deinandra corymbosa)		Synonym
Hemizonia arida (Under Deinandra arida)		Synonym
Hemizonia calyculata (Under Hemizonia congesta subsp. calyculata)		Synonym
Hemizonia clementina (Under Deinandra clementina)		Synonym
Hemizonia clevelandii (Under Hemizonia congesta subsp. clevelandii)		Synonym
Hemizonia congesta ↳ Key to Hemizonia congesta		Native
Hemizonia congesta subsp. calyculata	MENDOCINO TARPLANT	Native
Hemizonia congesta subsp. clevelandii		Native
Hemizonia congesta subsp. congesta	CONGESTED-HEADED HAYFIELD TARPLANT	Native
Hemizonia congesta subsp. congesta (Under Hemizonia congesta subsp. lutescens)		Misapplied name
Hemizonia congesta subsp. leucocephala (Under Hemizonia congesta subsp. congesta)		Synonym
Hemizonia congesta subsp. lutescens		Native
Hemizonia congesta subsp. luzulifolia		Native
Hemizonia congesta subsp. tracyi	TRACY'S TARPLANT	Native
Hemizonia congesta subsp. vernalis (Under Hemizonia congesta subsp. congesta)		Synonym
Hemizonia conjugens (Under Deinandra conjugens)		Synonym
Hemizonia corymbosa (Under Deinandra corymbosa)		Synonym
Hemizonia corymbosa subsp. macrocephala (Under Deinandra corymbosa)		Synonym
Hemizonia fasciculata (Under Deinandra fasciculata)		Synonym
Hemizonia fitchii (Under Centromadia fitchii)		Synonym
Hemizonia floribunda (Under Deinandra floribunda)		Synonym
Hemizonia halliana (Under Deinandra halliana)		Synonym
Hemizonia increscens subsp. foliosa (Under Deinandra paniculata)		Synonym
Hemizonia increscens subsp. increscens (Under Deinandra increscens subsp. increscens)		Synonym
Hemizonia increscens subsp. villosa (Under Deinandra increscens subsp. villosa)		Synonym
Hemizonia kelloggii (Under Deinandra kelloggii)		Synonym
Hemizonia lobbii (Under Deinandra lobbii)		Synonym
Hemizonia lutescens (Under Hemizonia congesta subsp. lutescens)		Synonym
Hemizonia luzulifolia (Under Hemizonia congesta subsp. luzulifolia)		Synonym
Hemizonia luzulifolia subsp. luzulifolia (Under Hemizonia congesta subsp. luzulifolia)		Synonym
Hemizonia luzulifolia subsp. rudis (Under Hemizonia congesta subsp. luzulifolia)		Synonym
Hemizonia minthornii (Under Deinandra minthornii)		Synonym
Hemizonia mohavensis (Under Deinandra mohavensis)		Synonym
Hemizonia oppositifolia (Under Calycadenia oppositifolia)		Synonym
Hemizonia pallida (Under Deinandra pallida)		Synonym
Hemizonia paniculata (Under Deinandra paniculata)		Synonym
Hemizonia parryi (Under Centromadia parryi)		Synonym
Hemizonia parryi subsp. australis (Under Centromadia parryi subsp. australis)		Synonym
Hemizonia parryi subsp. congdonii (Under Centromadia parryi subsp. congdonii)		Synonym
Hemizonia parryi subsp. parryi (Under Centromadia parryi subsp. parryi)		Synonym
Hemizonia parryi subsp. rudis (Under Centromadia parryi subsp. rudis)		Synonym
Hemizonia pentactis (Under Deinandra pentactis)		Synonym
Hemizonia pungens (Under Centromadia pungens)		Synonym
Hemizonia pungens subsp. laevis (Under Centromadia pungens subsp. laevis)		Synonym
Hemizonia pungens subsp. maritima (Under Centromadia pungens subsp. pungens)		Synonym
Hemizonia pungens subsp. septentrionalis (Under Centromadia pungens subsp. pungens)		Synonym
Heracleum	HOGWEED
Heracleum lanatum (Under Heracleum maximum)		Synonym
Heracleum maximum	COW PARSNIP, GIANT HOGWEED	Native
Herissantia	BLADDER MALLOW
Herissantia crispa	CURLY HERISSANTIA	Native
Hermidium alipes (Under Mirabilis alipes)		Synonym
Herniaria	RUPTUREWORT
Herniaria cinerea (Under Herniaria hirsuta var. cinerea)		Synonym
Herniaria hirsuta ↳ Key to Herniaria hirsuta		Naturalized
Herniaria hirsuta subsp. cinerea (Under Herniaria hirsuta var. cinerea)		Synonym
Herniaria hirsuta subsp. hirsuta (Under Herniaria hirsuta var. hirsuta)		Synonym
Herniaria hirsuta var. cinerea		Naturalized
Herniaria hirsuta var. hirsuta		Naturalized
Herpestris pilosa (Under Mimetanthe pilosa)		Synonym
Hesperevax ↳ Key to Hesperevax
Hesperevax acaulis	DWARF EVAX	Native
Hesperevax acaulis var. acaulis	STEMLESS EVAX	Native
Hesperevax acaulis var. ambusticola	FIRE EVAX	Native
Hesperevax acaulis var. robustior		Native
Hesperevax caulescens	HOGWALLOW STARFISH	Native
Hesperevax sparsiflora	ERECT EVAX	Native
Hesperevax sparsiflora var. brevifolia	SHORTLEAVED EVAX	Native
Hesperevax sparsiflora var. sparsiflora		Native
Hesperidanthus
Hesperidanthus jaegeri		Native
Hesperis	ROCKET
Hesperis matronalis	DAME'S ROCKET	Naturalized
Hesperocallis	DESERT LILY
Hesperocallis undulata		Native
Hesperochiron ↳ Key to Hesperochiron
Hesperochiron californicus (Under Hesperochiron nanus)		Synonym
Hesperochiron californicus subvar. lasianthus (Under Hesperochiron nanus)		Synonym
Hesperochiron californicus subvar. leporinus (Under Hesperochiron nanus)		Synonym
Hesperochiron californicus var. benthamianus (Under Hesperochiron nanus)		Synonym
Hesperochiron californicus var. incanus (Under Hesperochiron nanus)		Synonym
Hesperochiron californicus var. latifolius (Under Hesperochiron nanus)		Synonym
Hesperochiron californicus var. strigosus (Under Hesperochiron nanus)		Synonym
Hesperochiron californicus var. watsonianus (Under Hesperochiron nanus)		Synonym
Hesperochiron campanulatus (Under Hesperochiron pumilus)		Synonym
Hesperochiron ciliatus (Under Hesperochiron pumilus)		Synonym
Hesperochiron latifolius (Under Hesperochiron nanus)		Synonym
Hesperochiron nanus	CALIFORNIA HESPEROCHIRON	Native
Hesperochiron pumilus		Native
Hesperochiron pumilus f. fulcratus (Under Hesperochiron pumilus)		Synonym
Hesperochiron pumilus f. hirtellus (Under Hesperochiron pumilus)		Synonym
Hesperochiron pumilus f. nervosus (Under Hesperochiron pumilus)		Synonym
Hesperochiron pumilus f. villosulus (Under Hesperochiron pumilus)		Synonym
Hesperochiron pumilus var. ciliatus (Under Hesperochiron pumilus)		Synonym
Hesperochiron pumilus var. vestitus (Under Hesperochiron pumilus)		Synonym
Hesperochloa kingii (Under Festuca kingii)		Synonym
Hesperocnide	WESTERN NETTLE
Hesperocnide tenella		Native
Hesperocyparis ↳ Key to Hesperocyparis	WESTERN CYPRESS
Hesperocyparis abramsiana	SANTA CRUZ CYPRESS	Native
Hesperocyparis abramsiana var. abramsiana		Native
Hesperocyparis abramsiana var. butanoensis		Native
Hesperocyparis bakeri	BAKER CYPRESS, SISKIYOU CYPRESS	Native
Hesperocyparis forbesii	TECATE CYPRESS	Native
Hesperocyparis goveniana	GOWEN CYPRESS	Native
Hesperocyparis macnabiana	MCNAB CYPRESS	Native
Hesperocyparis macrocarpa	MONTEREY CYPRESS	Native
Hesperocyparis nevadensis	PIUTE CYPRESS	Native
Hesperocyparis pigmaea	PYGMY CYPRESS	Native
Hesperocyparis revealiana (Under Hesperocyparis stephensonii)		Synonym
Hesperocyparis sargentii	SARGENT CYPRESS	Native
Hesperocyparis stephensonii	CUYAMACA CYPRESS	Native
Hesperolinon ↳ Key to Hesperolinon	WESTERN FLAX
Hesperolinon adenophyllum	GLANDULAR WESTERN FLAX	Native
Hesperolinon bicarpellatum	TWO-CARPELLATE WESTERN FLAX	Native
Hesperolinon breweri	BREWER'S WESTERN FLAX	Native
Hesperolinon californicum		Native
Hesperolinon clevelandii		Native
Hesperolinon congestum	MARIN WESTERN FLAX	Native
Hesperolinon didymocarpum	LAKE COUNTY WESTERN FLAX	Native
Hesperolinon disjunctum		Native
Hesperolinon drymarioides	DRYMARIA-LIKE WESTERN FLAX	Native
Hesperolinon micranthum		Native
Hesperolinon spergulinum		Native
Hesperolinon tehamense	TEHAMA COUNTY WESTERN FLAX	Native
Hesperomecon
Hesperomecon filiformis (Under Hesperomecon linearis)		Synonym
Hesperomecon linearis		Native
Hesperoscordum aridum (Under Triteleia hyacinthina)		Illegitimate name
Hesperoscordum hyacinthinum (Under Triteleia hyacinthina)		Synonym
Hesperoscordum lacteum (Under Triteleia hyacinthina)		Synonym
Hesperoscordum lewisii (Under Triteleia hyacinthina)		Synonym
Hesperoscordum lilacinum (Under Triteleia lilacina)		Synonym
Hesperoscordum maritimum (Under Muilla maritima)		Synonym
Hesperostipa comata (Under Stipa comata)		Synonym
Hesperostipa comata subsp. comata (Under Stipa comata var. comata)		Synonym
Hesperostipa comata subsp. intermedia (Under Stipa comata var. intermedia)		Synonym
Hesperoyucca	QUIXOTE PLANT, CHAPARRAL YUCCA
Hesperoyucca whipplei		Native
Hesperoyucca whipplei var. graminifolia (Under Hesperoyucca whipplei)		Synonym
Heteranthemis
Heteranthemis viscidehirta (Under Heteranthemis viscidihirta)		Orthographic variant
Heteranthemis viscidihirta		Naturalized
Heteranthera ↳ Key to Heteranthera	MUD PLANTAIN
Heteranthera dubia	WATER STAR-GRASS	Native
Heteranthera limosa		Naturalized
Heterocodon
Heterocodon rariflorum		Native
Heterodraba unilateralis (Under Athysanus unilateralis)		Synonym
Heterogaura heterandra (Under Clarkia heterandra)		Synonym
Heteromeles	CHRISTMAS BERRY, TOYON
Heteromeles arbutifolia		Native
Heteromeles arbutifolia var. arbutifolia (Under Heteromeles arbutifolia)		Synonym
Heteromeles arbutifolia var. cerina (Under Heteromeles arbutifolia)		Synonym
Heteromeles arbutifolia var. macrocarpa (Under Heteromeles arbutifolia)		Synonym
Heteromeles salicifolia (Under Heteromeles arbutifolia)		Synonym
Heteropogon
Heteropogon contortus	TANGLEHEAD	Naturalized
Heterotheca ↳ Key to Heterotheca	GOLDENASTER, TELEGRAPH WEED
Heterotheca echioides var. bolanderi (Under Heterotheca sessiliflora subsp. bolanderi)		Synonym
Heterotheca grandiflora	TELEGRAPH WEED	Native
Heterotheca monarchensis	MONARCH GOLDENASTER	Native
Heterotheca oregona	RAYLESS GOLDENASTER	Native
Heterotheca oregona var. compacta		Native
Heterotheca oregona var. oregona		Native
Heterotheca oregona var. rudis		Native
Heterotheca oregona var. scaberrima		Native
Heterotheca psammophila (Under Heterotheca subaxillaris subsp. latifolia)		Synonym
Heterotheca sessiliflora	SESSILEFLOWER GOLDENASTER	Native
Heterotheca sessiliflora subsp. bolanderi		Native
Heterotheca sessiliflora subsp. echioides		Native
Heterotheca sessiliflora subsp. fastigiata		Native
Heterotheca sessiliflora subsp. sessiliflora	BEACH GOLDENASTER	Native
Heterotheca sessiliflora var. echioides (Under Heterotheca sessiliflora subsp. echioides)		Synonym
Heterotheca sessiliflora var. fastigiata (Under Heterotheca sessiliflora subsp. fastigiata)		Synonym
Heterotheca sessiliflora var. sessiliflora (Under Heterotheca sessiliflora subsp. sessiliflora)		Synonym
Heterotheca shevockii	SHEVOCK'S GOLDENASTER	Native
Heterotheca subaxillaris subsp. latifolia	CAMPHOR-WEED	Native
Heterotheca villosa	HAIRY GOLDENASTER	Native
Heterotheca villosa var. hispida (Under Heterotheca villosa var. minor)		Synonym
Heterotheca villosa var. minor		Native
Heterotheca villosa var. scabra		Native
Heterotheca villosa var. shevockii (Under Heterotheca shevockii)		Synonym
Heterotheca villosa var. villosa (Under Heterotheca villosa var. minor)		Misapplied name
Heuchera ↳ Key to Heuchera	ALUMROOT
Heuchera abramsii	ABRAMS' ALUMROOT	Native
Heuchera brevistaminea	LAGUNA MOUNTAINS ALUMROOT	Native
Heuchera caespitosa		Native
Heuchera cespitosa (Under Heuchera caespitosa)		Orthographic variant
Heuchera cylindrica		Native
Heuchera cylindrica var. alpina (Under Heuchera cylindrica)		Synonym
Heuchera duranii (Under Heuchera parvifolia)		Synonym
Heuchera elegans (Under Heuchera caespitosa)		Synonym
Heuchera hirsutissima	SHAGGY-HAIRED ALUMROOT	Native
Heuchera maxima	ISLAND ALUMROOT	Native
Heuchera merriamii		Native
Heuchera micrantha		Native
Heuchera micrantha var. diversifolia (Under Heuchera micrantha)		Synonym
Heuchera micrantha var. erubescens (Under Heuchera micrantha)		Synonym
Heuchera micrantha var. hartwegii (Under Heuchera micrantha)		Synonym
Heuchera micrantha var. macropetala (Under Heuchera micrantha)		Synonym
Heuchera parishii	PARISH'S ALUMROOT	Native
Heuchera parvifolia		Native
Heuchera pilosissima		Native
Heuchera rubescens		Native
Heuchera rubescens var. abramsii (Under Heuchera abramsii)		Synonym
Heuchera rubescens var. alpicola (Under Heuchera rubescens)		Synonym
Heuchera rubescens var. glandulosa (Under Heuchera rubescens)		Synonym
Heuchera rubescens var. parishii (Under Heuchera parishii)		Synonym
Heuchera rubescens var. rydbergiana (Under Heuchera rubescens)		Synonym
Heuchera rubescens var. versicolor (Under Heuchera rubescens)		Synonym
Hibiscus ↳ Key to Hibiscus	HIBISCUS
Hibiscus californicus (Under Hibiscus lasiocarpos var. occidentalis)		Synonym
Hibiscus denudatus	PALE FACE	Native
Hibiscus denundatus var. involucellatus (Under Hibiscus denudatus)		Synonym
Hibiscus lasiocarpos var. californicus (Under Hibiscus lasiocarpos var. occidentalis)		Synonym
Hibiscus lasiocarpos var. occidentalis	WOOLLY ROSE-MALLOW	Native
Hibiscus lasiocarpus (Under Hibiscus lasiocarpos var. occidentalis)		Orthographic variant
Hibiscus moscheutos var. occidentalis (Under Hibiscus lasiocarpos var. occidentalis)		Synonym
Hibiscus trionum	FLOWER-OF-AN-HOUR	Naturalized
Hieracium ↳ Key to Hieracium	HAWKWEED
Hieracium albertinum (Under Hieracium scouleri)		Synonym
Hieracium albiflorum	WHITE HAWKWEED	Native
Hieracium argutum	SOUTHERN HAWKWEED	Native
Hieracium argutum var. parishii (Under Hieracium argutum)		Synonym
Hieracium aurantiacum	ORANGE HAWKWEED	Waif
Hieracium bolanderi	BOLANDER'S HAWKWEED	Native
Hieracium gracile (Under Hieracium triste)		Synonym
Hieracium greenei	GREENE'S HAWKWEED	Native
Hieracium horridum	PRICKLY HAWKWEED	Native
Hieracium nudicaule	NAKED-STEMMED HAWKWEED	Native
Hieracium parryi	PARRY'S HAWKWEED	Native
Hieracium scouleri	WESTERN HAWKWEED	Native
Hieracium scouleri var. albertinum (Under Hieracium scouleri)		Synonym
Hieracium scouleri var. griseum (Under Hieracium scouleri)		Synonym
Hieracium triste	SLENDER HAWKWEED	Native
Hierochloe hirta (Under Anthoxanthum nitens subsp. nitens)		Synonym
Hierochloe occidentalis (Under Anthoxanthum occidentale)		Synonym
Hierochloe odorata (Under Anthoxanthum nitens subsp. nitens)		Synonym
Hilaria ↳ Key to Hilaria
Hilaria jamesii	GALLETA	Native
Hilaria rigida	BIG GALLETA	Native
Hippuris	MARE'S-TAIL
Hippuris vulgaris		Native
Hirschfeldia	PERENNIAL, SHORTPOD, or SUMMER MUSTARD
Hirschfeldia incana		Naturalized
Hoffmannseggia ↳ Key to Hoffmannseggia
Hoffmannseggia densiflora (Under Hoffmannseggia glauca)		Synonym
Hoffmannseggia glauca	PIG-NUT, HOG POTATO	Native
Hoffmannseggia microphylla		Native
Hofmeisteria pluriseta (Under Pleurocoronis pluriseta)		Synonym
Hoita ↳ Key to Hoita	LEATHER ROOT
Hoita hallii (Under Rupertia hallii)		Synonym
Hoita macrostachya		Native
Hoita orbicularis		Native
Hoita rigida (Under Rupertia rigida)		Synonym
Hoita strobilina	LOMA PRIETA HOITA	Native
Holacantha emoryi (Under Castela emoryi)		Synonym
Holcus ↳ Key to Holcus	VELVET GRASS
Holcus lanatus	COMMON VELVET GRASS	Naturalized
Holcus mollis	CREEPING VELVET GRASS	Naturalized
Hollisteria
Hollisteria lanata	FALSE SPIKEFLOWER	Native
Holmgrenanthe
Holmgrenanthe petrophila	ROCK LADY	Native
Holmgrenia andina (Under Neoholmgrenia andina)		Synonym
Holocarpha ↳ Key to Holocarpha	TARWEED, TARPLANT
Holocarpha heermannii		Native
Holocarpha macradenia	SANTA CRUZ TARPLANT	Native
Holocarpha obconica		Native
Holocarpha obconica subsp. autumnalis (Under Holocarpha obconica)		Synonym
Holocarpha virgata		Native
Holocarpha virgata subsp. elongata	GRACEFUL TARPLANT	Native
Holocarpha virgata subsp. virgata		Native
Holodiscus
Holodiscus discolor ↳ Key to Holodiscus discolor	OCEANSPRAY	Native
Holodiscus discolor var. cedrorum		Native
Holodiscus discolor var. discolor		Native
Holodiscus discolor var. glabrescens		Native
Holodiscus discolor var. microphyllus		Native
Holodiscus dumosus var. cedrorum (Under Holodiscus discolor var. cedrorum)		Synonym
Holodiscus microphyllus (Under Holodiscus discolor var. microphyllus)		Synonym
Holodiscus microphyllus var. glabrescens (Under Holodiscus discolor var. glabrescens)		Synonym
Holodiscus microphyllus var. microphyllus (Under Holodiscus discolor var. microphyllus)		Synonym
Holodiscus saxicola (Under Holodiscus discolor)		Synonym
Holosteum	JAGGED CHICKWEED
Holosteum umbellatum subsp. umbellatum		Naturalized
Holozonia
Holozonia filipes	WHITECROWN	Native
Hookera bicolor (Under Triteleia grandiflora)		Synonym
Hookera bridgesii (Under Triteleia bridgesii)		Synonym
Hookera californica (Under Brodiaea californica)		Synonym
Hookera capitata (Under Dipterostemon capitatus)		Synonym
Hookera congesta (Under Dichelostemma congestum)		Synonym
Hookera crocea (Under Triteleia crocea)		Synonym
Hookera douglasii (Under Triteleia grandiflora)		Synonym
Hookera filifolia (Under Brodiaea filifolia)		Synonym
Hookera gracilis (Under Triteleia montana)		Synonym
Hookera grandiflora (Under Triteleia grandiflora)		Synonym
Hookera howellii (Under Triteleia grandiflora)		Synonym
Hookera hyacinthina (Under Triteleia hyacinthina)		Synonym
Hookera hyacinthina var. lactea (Under Triteleia hyacinthina)		Synonym
Hookera ixioides var. lugens (Under Triteleia lugens)		Synonym
Hookera laxa (Under Triteleia laxa)		Synonym
Hookera leptandra (Under Brodiaea leptandra)		Synonym
Hookera macropoda (Under Brodiaea terrestris subsp. terrestris)		Synonym
Hookera minor (Under Brodiaea minor)		Synonym
Hookera multiflora (Under Dichelostemma multiflorum)		Synonym
Hookera multipedunculata (Under Brodiaea orcuttii)		Synonym
Hookera orcuttii (Under Brodiaea orcuttii)		Synonym
Hookera parviflora (Under Dichelostemma multiflorum)		Synonym
Hookera pauciflora (Under Dipterostemon capitatus subsp. pauciflorus)		Synonym
Hookera peduncularis (Under Triteleia peduncularis)		Synonym
Hookera purdyi (Under Brodiaea minor)		Synonym
Hookera rosea (Under Brodiaea rosea subsp. rosea)		Synonym
Hookera stellaris (Under Brodiaea stellaris)		Synonym
Hookera synandra (Under Brodiaea leptandra)		Synonym
Hookera volubilis (Under Dichelostemma volubile)		Synonym
Hooveria ↳ Key to Hooveria	AMOLE
Hooveria parviflora		Native
Hooveria purpurea		Native
Hooveria purpurea var. purpurea	SANTA LUCIA PURPLE AMOLE	Native
Hooveria purpurea var. reducta	CAMATTA CANYON AMOLE	Native
Hordeum ↳ Key to Hordeum	BARLEY
Hordeum arizonicum	ARIZONA BARLEY	Native
Hordeum brachyantherum		Native
Hordeum brachyantherum subsp. brachyantherum	NORTHERN BARLEY	Native
Hordeum brachyantherum subsp. californicum	CALIFORNIA BARLEY	Native
Hordeum californicum (Under Hordeum brachyantherum subsp. californicum)		Synonym
Hordeum depressum	LOW BARLEY, ALKALI BARLEY	Native
Hordeum geniculatum (Under Hordeum marinum subsp. gussoneanum)		Synonym
Hordeum glaucum (Under Hordeum murinum subsp. glaucum)		Synonym
Hordeum hystrix (Under Hordeum marinum subsp. gussoneanum)		Synonym
Hordeum intercedens	BOBTAIL BARLEY	Native
Hordeum jubatum subsp. jubatum	FOXTAIL BARLEY, SQUIRRELTAIL BARLEY	Native
Hordeum jubatum var. caespitosum (Under Hordeum jubatum subsp. jubatum)		Synonym
Hordeum leporinum (Under Hordeum murinum subsp. leporinum)		Synonym
Hordeum marinum subsp. gussoneanum	MEDITERRANEAN BARLEY	Naturalized
Hordeum murinum	WALL BARLEY	Naturalized
Hordeum murinum subsp. glaucum	SMOOTH BARLEY	Naturalized
Hordeum murinum subsp. leporinum	HARE BARLEY	Naturalized
Hordeum murinum subsp. murinum		Naturalized
Hordeum pusillum (Under Hordeum intercedens)		Synonym, in part
Hordeum stebbinsii (Under Hordeum murinum subsp. glaucum)		Synonym
Hordeum vulgare	BARLEY	Waif
Hordeum vulgare var. trifurcatum (Under Hordeum vulgare)		Synonym
Hordeum vulgare var. vulgare (Under Hordeum vulgare)		Synonym
Horkelia ↳ Key to Horkelia
Horkelia bolanderi	BOLANDER'S HORKELIA	Native
Horkelia bolanderi subsp. clevelandii (Under Horkelia clevelandii var. clevelandii)		Synonym
Horkelia bolanderi subsp. parryi (Under Horkelia rydbergii)		Synonym
Horkelia californica		Native
Horkelia californica subsp. californica (Under Horkelia californica var. californica)		Synonym
Horkelia californica subsp. dissita (Under Horkelia californica var. elata)		Synonym
Horkelia californica subsp. frondosa (Under Horkelia californica var. frondosa)		Synonym
Horkelia californica var. californica		Native
Horkelia californica var. elata		Native
Horkelia californica var. frondosa		Native
Horkelia chaetophora (Under Ivesia pygmaea)		Synonym
Horkelia chandleri (Under Ivesia muirii)		Synonym
Horkelia clevelandii var. clevelandii		Native
Horkelia congesta subsp. nemorosa (Under Horkelia congesta var. nemorosa)		Synonym
Horkelia congesta var. nemorosa	JOSEPHINE HORKELIA	Native
Horkelia cuneata		Native
Horkelia cuneata subsp. cuneata (Under Horkelia cuneata var. cuneata)		Synonym
Horkelia cuneata subsp. puberula (Under Horkelia cuneata var. puberula)		Synonym
Horkelia cuneata subsp. sericea (Under Horkelia cuneata var. sericea)		Synonym
Horkelia cuneata var. cuneata		Native
Horkelia cuneata var. puberula	MESA HORKELIA	Native
Horkelia cuneata var. sericea	KELLOGG'S HORKELIA	Native
Horkelia daucifolia		Native
Horkelia daucifolia subsp. daucifolia (Under Horkelia daucifolia var. daucifolia)		Synonym
Horkelia daucifolia subsp. latior (Under Horkelia daucifolia var. daucifolia)		Synonym
Horkelia daucifolia var. daucifolia		Native
Horkelia daucifolia var. indicta	JEPSON'S HORKELIA	Native
Horkelia elata (Under Horkelia californica var. elata)		Synonym
Horkelia flavescens (Under Horkelia tridentata var. flavescens)		Synonym
Horkelia frondosa (Under Horkelia californica var. frondosa)		Synonym
Horkelia fusca		Native
Horkelia fusca subsp. capitata (Under Horkelia fusca var. pseudocapitata)		Misapplied name
Horkelia fusca subsp. parviflora (Under Horkelia fusca var. parviflora)		Synonym
Horkelia fusca subsp. pseudocapitata (Under Horkelia fusca var. brownii)		Misapplied name
Horkelia fusca subsp. pseudocapitata (Under Horkelia fusca var. pseudocapitata)		Synonym
Horkelia fusca subsp. tenella (Under Horkelia fusca var. tenella)		Synonym
Horkelia fusca var. brownii		Native
Horkelia fusca var. parviflora		Native
Horkelia fusca var. pseudocapitata		Native
Horkelia fusca var. tenella		Native
Horkelia glandulosa (Under Horkelia californica var. elata)		Synonym
Horkelia hendersonii	HENDERSON'S HORKELIA	Native
Horkelia hispidula	WHITE MOUNTAINS HORKELIA	Native
Horkelia howellii	HOWELL'S HORKELIA	Native
Horkelia marinensis	POINT REYES HORKELIA	Native
Horkelia mollis (Under Ivesia campestris)		Synonym
Horkelia parryi	PARRY'S HORKELIA	Native
Horkelia rydbergii		Native
Horkelia scandularis (Under Ivesia lycopodioides var. scandularis)		Synonym
Horkelia sericata	SILKY HORKELIA	Native
Horkelia tenuiloba	THIN-LOBED HORKELIA	Native
Horkelia tridentata		Native
Horkelia tridentata subsp. flavescens (Under Horkelia tridentata var. flavescens)		Synonym
Horkelia tridentata subsp. tridentata (Under Horkelia tridentata var. tridentata)		Synonym
Horkelia tridentata var. flavescens		Native
Horkelia tridentata var. tridentata		Native
Horkelia truncata	RAMONA HORKELIA	Native
Horkelia tularensis	KERN PLATEAU HORKELIA	Native
Horkelia wilderae	BARTON FLATS HORKELIA	Native
Horkelia yadonii	SANTA LUCIA HORKELIA	Native
Horkeliella ↳ Key to Horkeliella
Horkeliella congdonis		Native
Horkeliella purpurascens		Native
Hornungia
Hornungia procumbens		Naturalized
Horsfordia ↳ Key to Horsfordia
Horsfordia alata	PINK VELVET-MALLOW	Native
Horsfordia newberryi	NEWBERRY'S VELVET-MALLOW	Native
Hosackia ↳ Key to Hosackia	LOTUS
Hosackia bicolor (Under Hosackia pinnata)		Synonym
Hosackia crassifolia		Native
Hosackia crassifolia var. crassifolia		Native
Hosackia crassifolia var. otayensis	OTAY MOUNTAIN HOSACKIA	Native
Hosackia cuprea (Under Hosackia oblongifolia var. cuprea)		Synonym
Hosackia gracilis	HARLEQUIN LOTUS	Native
Hosackia incana		Native
Hosackia oblongifolia		Native
Hosackia oblongifolia var. cuprea	COPPER-FLOWERED BIRD'S-FOOT TREFOIL	Native
Hosackia oblongifolia var. oblongifolia		Native
Hosackia pinnata		Native
Hosackia rosea		Native
Hosackia stipularis		Native
Hosackia stipularis var. ottleyi		Native
Hosackia stipularis var. stipularis		Native
Hosackia yollabolliensis	YOLLA BOLLY MOUNTAINS BIRD'S-FOOT TREFOIL	Native
Howellanthus
Howellanthus dalesianus		Native
Howellia
Howellia aquatilis	WATER HOWELLIA	Native
Howellia limosa (Under Legenere limosa)		Synonym
Hulsea ↳ Key to Hulsea
Hulsea algida		Native
Hulsea brevifolia	SHORTLEAVED HULSEA	Native
Hulsea californica	SAN DIEGO SUNFLOWER	Native
Hulsea californica subsp. inyoensis (Under Hulsea vestita subsp. inyoensis)		Synonym
Hulsea heterochroma		Native
Hulsea mexicana	MEXICAN HULSEA	Native
Hulsea nana	LITTLE HULSEA	Native
Hulsea vestita		Native
Hulsea vestita subsp. callicarpha	BEAUTIFUL HULSEA	Native
Hulsea vestita subsp. gabrielensis	SAN GABRIEL MOUNTAINS SUNFLOWER	Native
Hulsea vestita subsp. inyoensis	INYO HULSEA	Native
Hulsea vestita subsp. parryi	PARRY'S SUNFLOWER	Native
Hulsea vestita subsp. pygmaea	PYGMY HULSEA	Native
Hulsea vestita subsp. vestita		Native
Hulsea vestita var. callicarpha (Under Hulsea vestita subsp. callicarpha)		Synonym
Humulus	HOP
Humulus lupulus	EUROPEAN HOP	Naturalized
Humulus lupulus var. lupulus (Under Humulus lupulus)		Synonym
Humulus lupulus var. neomexicanus (Under Humulus lupulus)		Synonym
Hutchinsia procumbens (Under Hornungia procumbens)		Illegitimate name
Hydastylus borealis (Under Sisyrinchium californicum)		Synonym
Hydastylus brachypus (Under Sisyrinchium californicum)		Synonym
Hydastylus longipes (Under Sisyrinchium longipes)		Synonym
Hydrangeaceae ↳ Key to Hydrangeaceae	HYDRANGEA FAMILY
Hydrilla
Hydrilla verticillata		Naturalized
Hydrocharis spongia (Under Limnobium spongia)		Synonym
Hydrocharitaceae ↳ Key to Hydrocharitaceae	WATERWEED FAMILY
Hydrocotyle ↳ Key to Hydrocotyle	MARSH PENNYWORT
Hydrocotyle ranunculoides		Native
Hydrocotyle umbellata		Native
Hydrocotyle verticillata		Native
Hydrocotyle verticillata var. triradiata (Under Hydrocotyle verticillata)		Synonym
Hydrolea urens (Under Wigandia urens)		Synonym
Hydropeltis purpurea (Under Brasenia schreberi)		Synonym
Hydrophyllaceae ↳ Key to Hydrophyllaceae	WATERLEAF FAMILY
Hydrophyllum ↳ Key to Hydrophyllum	WATERLEAF
Hydrophyllum albifrons (Under Hydrophyllum fendleri var. albifrons)		Synonym
Hydrophyllum albifrons subvar. pendulum (Under Hydrophyllum fendleri var. albifrons)		Synonym
Hydrophyllum alpestre	ALPINE BREECHES, ALPINE WATERLEAF	Native
Hydrophyllum alpinum (Under Hydrophyllum alpestre)		Synonym
Hydrophyllum capitatum var. alpinum (Under Hydrophyllum alpestre)		Synonym
Hydrophyllum coelestinum (Under Hydrophyllum tenuipes)		Synonym
Hydrophyllum congestum (Under Hydrophyllum fendleri var. albifrons)		Synonym
Hydrophyllum fendleri var. albifrons	WHITE WATERLEAF	Native
Hydrophyllum lineare (Under Phacelia linearis)		Synonym
Hydrophyllum macrophyllum var. occidentale (Under Hydrophyllum occidentale)		Synonym
Hydrophyllum occidentale	WESTERN WATERLEAF	Native
Hydrophyllum occidentale var. watsonii (Under Hydrophyllum occidentale)		Synonym
Hydrophyllum speciosum (Under Hydrophyllum occidentale)		Synonym
Hydrophyllum tenuipes	PACIFIC WATERLEAF	Native
Hydrophyllum tenuipes var. viride (Under Hydrophyllum tenuipes)		Synonym
Hydrophyllum virginicum var. pacificum (Under Hydrophyllum tenuipes)		Synonym
Hydrophyllum viridulum (Under Hydrophyllum tenuipes)		Synonym
Hydrophyllum watsonii (Under Hydrophyllum occidentale)		Synonym
Hymenoclea monogyra (Under Ambrosia monogyra)		Synonym
Hymenoclea platyspina (Under Ambrosia ×platyspina)		Synonym
Hymenoclea salsola var. fasciculata (Under Ambrosia salsola var. salsola)		Synonym
Hymenoclea salsola var. patula (Under Ambrosia salsola var. salsola)		Illegitimate name
Hymenoclea salsola var. pentalepis (Under Ambrosia salsola var. pentalepis)		Synonym
Hymenoclea salsola var. salsola (Under Ambrosia salsola var. salsola)		Synonym
Hymenolobus procumbens (Under Hornungia procumbens)		Synonym
Hymenopappus
Hymenopappus filifolius ↳ Key to Hymenopappus filifolius		Native
Hymenopappus filifolius var. eriopodus	HAIRY-PODDED FINE-LEAF HYMENOPAPPUS	Native
Hymenopappus filifolius var. lugens		Native
Hymenopappus filifolius var. megacephalus		Native
Hymenopappus filifolius var. nanus	LITTLE CUTLEAF	Native
Hymenothrix ↳ Key to Hymenothrix
Hymenothrix dissecta		Native
Hymenothrix loomisii		Waif
Hymenothrix wrightii	WRIGHT'S HYMENOTHRIX	Native
Hymenoxys ↳ Key to Hymenoxys
Hymenoxys acaulis var. arizonica (Under Tetraneuris acaulis var. arizonica)		Synonym
Hymenoxys acaulis var. nana (Under Tetraneuris acaulis var. arizonica)		Synonym
Hymenoxys cooperi		Native
Hymenoxys cooperi var. canescens (Under Hymenoxys cooperi)		Synonym
Hymenoxys hoopesii		Native
Hymenoxys lemmonii	ALKALI HYMENOXYS	Native
Hymenoxys odorata	BITTER HYMENOXYS	Native
Hyparrhenia
Hyparrhenia hirta	THATCHING GRASS	Naturalized
Hypericaceae	ST. JOHN'S WORT FAMILY
Hypericum ↳ Key to Hypericum
Hypericum anagalloides	TINKER'S PENNY	Native
Hypericum androsaemum		Waif
Hypericum calycinum	AARON'S BEARD	Naturalized
Hypericum canariense		Naturalized
Hypericum concinnum	GOLD-WIRE	Native
Hypericum formosum var. scouleri (Under Hypericum scouleri)		Synonym
Hypericum hookerianum		Waif
Hypericum mutilum subsp. mutilum		Naturalized
Hypericum perforatum subsp. perforatum	KLAMATHWEED	Naturalized
Hypericum scouleri		Native
Hypericum scouleri subsp. scouleri (Under Hypericum scouleri)		Synonym
Hypochaeris ↳ Key to Hypochaeris	CAT'S-EAR
Hypochaeris glabra	SMOOTH CAT'S-EAR	Naturalized
Hypochaeris radicata	ROUGH CAT'S-EAR	Naturalized
Hypopitys fimbriata (Under Monotropa hypopitys)		Synonym
Hypopitys lanuginosa (Under Monotropa hypopitys)		Synonym
Hypopitys monotropa (Under Monotropa hypopitys)		Synonym
Hyptis emoryi (Under Condea emoryi)		Synonym
Hystrix californica (Under Elymus californicus)		Synonym

Please use this Google Form for Contact/Feedback