Index Page, California Flora, Jepson eFlora

Scientific Name	Common Name	Status
Obione bracteosa (Under Atriplex serenana)		Synonym
Obione confertifolia (Under Atriplex confertifolia)		Synonym
Obione cordulata (Under Atriplex cordulata)		Synonym
Obione coulteri (Under Atriplex coulteri)		Synonym
Obione elegans (Under Atriplex elegans)		Synonym
Obione flavida (Under Atriplex flavida)		Synonym
Obione fruticulosa (Under Atriplex fruticulosa)		Synonym
Obione glauca (Under Atriplex glauca)		Synonym
Obione hymenelytra (Under Atriplex hymenelytra)		Synonym
Obione lentiformis (Under Atriplex lentiformis)		Synonym
Obione leucophylla (Under Atriplex leucophylla)		Synonym
Obione microcarpa (Under Atriplex pacifica)		Synonym
Obione parishii (Under Atriplex parishii)		Synonym
Obione polycarpa (Under Atriplex polycarpa)		Synonym
Obione pusilla (Under Atriplex pusilla)		Synonym
Obione radiata (Under Atriplex elegans)		Synonym
Obione torreyi (Under Atriplex torreyi var. torreyi)		Synonym
Obione truncata (Under Atriplex truncata)		Synonym
Obione tularensis (Under Atriplex tularensis)		Synonym
Ocimum salinum (Under Frankenia salina)		Synonym
Odontostomum
Odontostomum hartwegii		Native
Oemleria	OSO BERRY
Oemleria cerasiformis		Native
Oenanthe
Oenanthe sarmentosa		Native
Oenothera ↳ Key to Oenothera	EVENING-PRIMROSE
Oenothera ×erythrosepala (Under Oenothera glazioviana)		Synonym
Oenothera abramsii (Under Camissoniopsis pallida subsp. pallida)		Synonym
Oenothera alyssoides (Under Eremothera boothii subsp. alyssoides)		Synonym
Oenothera andina (Under Neoholmgrenia andina)		Synonym
Oenothera arenaria (Under Chylismia arenaria)		Synonym
Oenothera avita		Native
Oenothera avita subsp. avita		Native
Oenothera avita subsp. californica		Native
Oenothera avita subsp. eurekensis	EUREKA DUNES EVENING-PRIMROSE	Native
Oenothera biennis	COMMON EVENING-PRIMROSE	Naturalized
Oenothera biennis (Under Oenothera villosa subsp. strigosa)		Misapplied name
Oenothera bistorta (Under Camissoniopsis bistorta)		Synonym
Oenothera bistorta var. veitchiana (Under Camissoniopsis bistorta)		Synonym
Oenothera boothii (Under Eremothera boothii)		Synonym
Oenothera boothii subsp. condensata (Under Eremothera boothii subsp. condensata)		Synonym
Oenothera boothii subsp. decorticans (Under Eremothera boothii subsp. decorticans)		Synonym
Oenothera boothii subsp. desertorum (Under Eremothera boothii subsp. desertorum)		Synonym
Oenothera boothii subsp. intermedia (Under Eremothera boothii subsp. intermedia)		Synonym
Oenothera boothii subsp. inyoensis (Under Eremothera boothii subsp. desertorum)		Synonym
Oenothera boothii subsp. rutila (Under Eremothera boothii subsp. decorticans)		Synonym
Oenothera brevipes (Under Chylismia brevipes)		Synonym
Oenothera brevipes subsp. arizonica (Under Chylismia brevipes subsp. arizonica)		Synonym
Oenothera brevipes subsp. pallidula (Under Chylismia brevipes subsp. pallidula)		Synonym
Oenothera caespitosa (Under Oenothera cespitosa)		Orthographic variant
Oenothera caespitosa subsp. crinita (Under Oenothera cespitosa subsp. crinita)		Orthographic variant
Oenothera caespitosa subsp. marginata (Under Oenothera cespitosa subsp. marginata)		Orthographic variant
Oenothera californica (Under Oenothera avita)		Illegitimate name
Oenothera californica subsp. avita (Under Oenothera avita subsp. avita)		Illegitimate name
Oenothera californica subsp. californica (Under Oenothera avita subsp. californica)		Illegitimate name
Oenothera californica subsp. eurekensis (Under Oenothera avita subsp. eurekensis)		Illegitimate name
Oenothera californica var. glabrata (Under Oenothera avita subsp. californica)		Synonym
Oenothera campestris (Under Camissonia campestris subsp. campestris)		Synonym
Oenothera campestris subsp. parishii (Under Camissonia campestris subsp. campestris)		Synonym
Oenothera cardiophylla (Under Chylismia cardiophylla)		Synonym
Oenothera cardiophylla subsp. robusta (Under Chylismia cardiophylla subsp. robusta)		Synonym
Oenothera cavernae	CAVE EVENING-PRIMROSE	Native
Oenothera cespitosa	FRAGRANT EVENING-PRIMROSE	Native
Oenothera cespitosa subsp. crinita	CESPITOSE EVENING-PRIMROSE	Native
Oenothera cespitosa subsp. marginata		Native
Oenothera cespitosa var. crinita (Under Oenothera cespitosa subsp. crinita)		Synonym
Oenothera cespitosa var. marginata (Under Oenothera cespitosa subsp. marginata)		Synonym
Oenothera chamaenerioides (Under Eremothera chamaenerioides)		Synonym
Oenothera cheiranthifolia (Under Camissoniopsis cheiranthifolia)		Synonym
Oenothera cheiranthifolia subsp. suffruticosa (Under Camissoniopsis cheiranthifolia subsp. suffruticosa)		Synonym
Oenothera cheiranthifolia var. nitida (Under Camissoniopsis cheiranthifolia)		Synonym
Oenothera cheiranthifolia var. suffruticosa (Under Camissoniopsis cheiranthifolia subsp. suffruticosa)		Synonym
Oenothera claviformis (Under Chylismia claviformis)		Synonym
Oenothera claviformis subsp. aurantiaca (Under Chylismia claviformis subsp. aurantiaca)		Synonym
Oenothera claviformis subsp. citrina (Under Chylismia claviformis subsp. cruciformis)		Synonym
Oenothera claviformis subsp. cruciformis (Under Chylismia claviformis subsp. cruciformis)		Synonym
Oenothera claviformis subsp. funerea (Under Chylismia claviformis subsp. funerea)		Synonym
Oenothera claviformis subsp. integrior (Under Chylismia claviformis subsp. integrior)		Synonym
Oenothera claviformis subsp. lancifolia (Under Chylismia claviformis subsp. lancifolia)		Synonym
Oenothera claviformis subsp. peirsonii (Under Chylismia claviformis subsp. peirsonii)		Synonym
Oenothera claviformis subsp. yumae (Under Chylismia claviformis subsp. yumae)		Synonym
Oenothera contorta (Under Camissonia contorta)		Synonym
Oenothera contorta var. flexuosa (Under Camissonia parvula)		Synonym
Oenothera contorta var. flexuosa (Under Camissonia pusilla)		Unabridged misapplied name
Oenothera cruciata (Under Camissonia contorta)		Illegitimate name
Oenothera cruciata (Under Camissonia lacustris)		Unabridged misapplied name
Oenothera curtiflora	LIZARD-TAIL, VELVET WEED	Naturalized
Oenothera decorticans (Under Eremothera boothii subsp. decorticans)		Synonym
Oenothera deltoides	DEVIL'S LANTERN, LION-IN-A-CAGE, BASKET EVENING-PRIMROSE	Native
Oenothera deltoides subsp. cognata		Native
Oenothera deltoides subsp. deltoides		Native
Oenothera deltoides subsp. howellii	ANTIOCH DUNES EVENING-PRIMROSE	Native
Oenothera deltoides subsp. piperi		Native
Oenothera dentata (Under Camissonia lacustris)		Unabridged misapplied name
Oenothera dentata (Under Camissonia strigulosa)		Misapplied name
Oenothera deserti (Under Eremothera refracta)		Synonym
Oenothera elata		Native
Oenothera elata subsp. hirsutissima		Native
Oenothera elata subsp. hookeri		Native
Oenothera flava		Native
Oenothera flava subsp. flava (Under Oenothera flava)		Synonym
Oenothera glazioviana		Naturalized
Oenothera graciliflora (Under Tetrapteron graciliflorum)		Synonym
Oenothera guadalupensis subsp. clementina (Under Camissoniopsis guadalupensis subsp. clementina)		Synonym
Oenothera hallii (Under Camissoniopsis pallida subsp. hallii)		Synonym
Oenothera heterochroma (Under Chylismia heterochroma)		Synonym
Oenothera heterochroma subsp. monoensis (Under Chylismia heterochroma)		Synonym
Oenothera heterophylla (Under Camissoniopsis bistorta)		Synonym
Oenothera hirta (Under Camissoniopsis intermedia)		Unabridged misapplied name
Oenothera hirta (Under Camissoniopsis micrantha)		Illegitimate name
Oenothera hirtella (Under Camissoniopsis hirtella)		Synonym
Oenothera hookeri (Under Oenothera villosa subsp. strigosa)		Misapplied name
Oenothera hookeri subsp. angustifolia (Under Oenothera elata subsp. hirsutissima)		Synonym
Oenothera hookeri subsp. grisea (Under Oenothera elata subsp. hirsutissima)		Synonym
Oenothera hookeri subsp. montereyensis (Under Oenothera elata subsp. hookeri)		Synonym
Oenothera hookeri subsp. venusta (Under Oenothera elata subsp. hirsutissima)		Synonym
Oenothera hookeri subsp. wolfii (Under Oenothera wolfii)		Synonym
Oenothera ignota (Under Camissoniopsis confusa)		Unabridged misapplied name
Oenothera ignota (Under Camissoniopsis ignota)		Synonym
Oenothera kernensis subsp. gilmanii (Under Camissonia kernensis subsp. gilmanii)		Synonym
Oenothera kernensis subsp. mojavensis (Under Camissonia kernensis subsp. gilmanii)		Synonym
Oenothera laciniata		Naturalized
Oenothera laciniata subsp. pubescens (Under Oenothera pubescens)		Synonym
Oenothera leptocarpa (Under Eulobus californicus)		Synonym
Oenothera longissima	LONG-STEM EVENING-PRIMROSE	Native
Oenothera longissima subsp. clutei (Under Oenothera longissima)		Synonym
Oenothera micrantha (Under Camissoniopsis intermedia)		Unabridged misapplied name
Oenothera micrantha (Under Camissoniopsis lewisii)		Unabridged misapplied name
Oenothera micrantha (Under Camissoniopsis luciae)		Unabridged misapplied name
Oenothera micrantha (Under Camissoniopsis micrantha)		Synonym
Oenothera micrantha (Under Camissoniopsis robusta)		Unabridged misapplied name
Oenothera micrantha var. ignota (Under Camissoniopsis ignota)		Synonym
Oenothera micrantha var. jonesii (Under Camissoniopsis hirtella)		Synonym
Oenothera micrantha var. jonesii (Under Camissoniopsis luciae)		Unabridged misapplied name
Oenothera minor (Under Eremothera minor)		Synonym
Oenothera multijuga var. parviflora (Under Chylismia walkeri subsp. tortilis)		Synonym
Oenothera munzii (Under Chylismia munzii)		Synonym
Oenothera ovata (Under Taraxia ovata)		Synonym
Oenothera palmeri (Under Tetrapteron palmeri)		Synonym
Oenothera parvula (Under Camissonia parvula)		Synonym
Oenothera primiveris		Native
Oenothera primiveris subsp. bufonis (Under Oenothera primiveris)		Synonym
Oenothera pterosperma (Under Chylismiella pterosperma)		Synonym
Oenothera pubens (Under Camissonia pubens)		Synonym
Oenothera pubescens		Native
Oenothera refracta (Under Eremothera refracta)		Synonym
Oenothera rosea		Waif
Oenothera scapoidea var. tortilis (Under Chylismia walkeri subsp. tortilis)		Synonym
Oenothera sinuosa	WAVY-LEAVED GAURA	Naturalized
Oenothera speciosa		Naturalized
Oenothera speciosa var. childsii (Under Oenothera speciosa)		Synonym
Oenothera stricta subsp. stricta		Waif
Oenothera strigosa (Under Oenothera villosa subsp. strigosa)		Synonym
Oenothera strigulosa (Under Camissonia contorta)		Unabridged misapplied name
Oenothera strigulosa (Under Camissonia strigulosa)		Synonym
Oenothera subacaulis (Under Taraxia subacaulis)		Synonym
Oenothera subacaulis var. taraxacifolia (Under Taraxia subacaulis)		Synonym
Oenothera suffrutescens	WILD HONEYSUCKLE, LINDA TARDE	Native
Oenothera tanacetifolia (Under Taraxia tanacetifolia)		Synonym
Oenothera villosa subsp. strigosa		Native
Oenothera walkeri subsp. tortilis (Under Chylismia walkeri subsp. tortilis)		Synonym
Oenothera wolfii	WOLF'S EVENING-PRIMROSE	Native
Oenothera xenogaura		Naturalized
Oenothera xylocarpa		Native
Olea	OLIVE
Olea europaea		Naturalized
Olea europaea subsp. africana (Under Olea europaea)		Synonym
Oleaceae ↳ Key to Oleaceae	OLIVE FAMILY
Oligomeris
Oligomeris linifolia		Native
Olneya	IRONWOOD
Olneya tesota	IRONWOOD	Native
Olsynium
Olsynium douglasii var. douglasii	PURPLE-EYED-GRASS, GRASS WIDOWS	Native
Onagraceae ↳ Key to Onagraceae	EVENING-PRIMROSE FAMILY
Oncosiphon
Oncosiphon pilulifer	STINKNET	Naturalized
Oncosiphon piluliferum (Under Oncosiphon pilulifer)		Orthographic variant
Onobrychis
Onobrychis viciifolia	SANFOIN	Naturalized
Onopordum ↳ Key to Onopordum
Onopordum acanthium subsp. acanthium	SCOTCH THISTLE	Naturalized
Onopordum illyricum	ILLYRIAN THISTLE	Naturalized
Onopordum tauricum	TAURIAN THISTLE	Naturalized
Onychium densum (Under Aspidotis densa)		Synonym
Ophioglossaceae ↳ Key to Ophioglossaceae	ADDER'S-TONGUE FAMILY
Ophioglossum ↳ Key to Ophioglossum	ADDER'S-TONGUE
Ophioglossum californicum	CALIFORNIA ADDER'S-TONGUE	Native
Ophioglossum lusitanicum subsp. californicum (Under Ophioglossum californicum)		Synonym
Ophioglossum pusillum	NORTHERN ADDER'S-TONGUE	Native
Ophioglossum vulgatum var. pseudopodum (Under Ophioglossum pusillum)		Synonym
Opuntia ↳ Key to Opuntia	PRICKLY-PEAR
Opuntia ×charlestonensis		Native
Opuntia ×fosbergii (Under Cylindropuntia fosbergii)		Synonym
Opuntia ×munzii (Under Cylindropuntia munzii)		Synonym
Opuntia ×occidentalis		Native
Opuntia ×vaseyi (Under Opuntia vaseyi)		Synonym
Opuntia ×wigginsii (Under Cylindropuntia echinocarpa)		Synonym
Opuntia acanthocarpa subsp. ganderi (Under Cylindropuntia ganderi)		Synonym
Opuntia acanthocarpa var. coloradensis (Under Cylindropuntia acanthocarpa var. acanthocarpa)		Synonym
Opuntia basilaris		Native
Opuntia basilaris var. basilaris	BEAVERTAIL	Native
Opuntia basilaris var. brachyclada	SHORT-JOINT BEAVERTAIL	Native
Opuntia basilaris var. ramosa (Under Opuntia basilaris var. basilaris)		Synonym
Opuntia basilaris var. treleasei	BAKERSFIELD CACTUS	Native
Opuntia bernardina (Under Cylindropuntia bernardina)		Synonym
Opuntia bigelovii (Under Cylindropuntia bigelovii)		Synonym
Opuntia bigelovii var. hoffmannii (Under Cylindropuntia fosbergii)		Synonym
Opuntia californica var. parkeri (Under Cylindropuntia bernardina)		Synonym
Opuntia chlorotica	PANCAKE PRICKLY-PEAR	Native
Opuntia curvispina		Native
Opuntia echinocarpa (Under Cylindropuntia echinocarpa)		Synonym
Opuntia echinocarpa var. parkeri (Under Cylindropuntia bernardina)		Synonym
Opuntia engelmannii var. engelmannii	ENGELMANN PRICKLY-PEAR	Native
Opuntia erinacea var. erinacea (Under Opuntia polyacantha var. erinacea)		Synonym
Opuntia erinacea var. hystricina (Under Opuntia polyacantha var. hystricina)		Synonym
Opuntia erinacea var. ursina (Under Opuntia polyacantha var. erinacea)		Synonym
Opuntia erinacea var. utahensis (Under Opuntia polyacantha var. erinacea)		Synonym
Opuntia ficus-indica	MISSION PRICKLY-PEAR	Naturalized
Opuntia ficus-indica (Under Opuntia ×occidentalis)		Unabridged misapplied name
Opuntia fosbergii (Under Cylindropuntia fosbergii)		Synonym
Opuntia fragilis	BRITTLE PRICKLY-PEAR	Native
Opuntia ganderi (Under Cylindropuntia ganderi)		Synonym
Opuntia humistrata (Under Opuntia basilaris var. brachyclada)		Synonym
Opuntia leucotricha	NOPAL DURAZNILLO	Waif
Opuntia littoralis		Native
Opuntia littoralis (Under Opuntia oricola)		Unabridged misapplied name
Opuntia littoralis var. austrocalifornica (Under Opuntia vaseyi)		Synonym
Opuntia littoralis var. piercei (Under Opuntia phaeacantha)		Synonym
Opuntia littoralis var. vaseyi (Under Opuntia vaseyi)		Synonym
Opuntia megacantha (Under Opuntia ficus-indica)		Unabridged misapplied name
Opuntia microdasys	BUNNY EARS	Naturalized
Opuntia munzii (Under Cylindropuntia munzii)		Synonym
Opuntia occidentalis (Under Opuntia littoralis)		Unabridged misapplied name
Opuntia occidentalis var. covillei (Under Opuntia vaseyi)		Synonym
Opuntia oricola		Native
Opuntia parishii (Under Grusonia parishii)		Synonym
Opuntia parryi (Under Cylindropuntia bernardina)		Synonym
Opuntia parryi var. parryi (Under Cylindropuntia bernardina)		Synonym
Opuntia parryi var. serpentina (Under Cylindropuntia californica var. californica)		Synonym
Opuntia phaeacantha	BROWN-SPINED PRICKLY-PEAR	Native
Opuntia phaeacantha var. discata (Under Opuntia engelmannii var. engelmannii)		Synonym
Opuntia phaeacantha var. major (Under Opuntia phaeacantha)		Synonym
Opuntia polyacantha	STARVATION PRICKLY-PEAR	Native
Opuntia polyacantha var. erinacea	MOJAVE PRICKLY-PEAR, GRIZZLY BEAR PRICKLY-PEAR	Native
Opuntia polyacantha var. hystricina	PORCUPINE PRICKLY-PEAR	Native
Opuntia polyacantha var. rufispina (Under Opuntia polyacantha var. erinacea)		Misapplied name
Opuntia prolifera (Under Cylindropuntia prolifera)		Synonym
Opuntia pulchella (Under Grusonia pulchella)		Synonym
Opuntia ramosissima (Under Cylindropuntia ramosissima)		Synonym
Opuntia robusta	NOPAL TAPON	Waif
Opuntia semispinosa (Under Opuntia littoralis)		Synonym
Opuntia serpentina (Under Cylindropuntia californica var. californica)		Synonym
Opuntia stanlyi (Under Grusonia parishii)		Synonym
Opuntia stanlyi var. parishii (Under Grusonia parishii)		Synonym
Opuntia treleasei (Under Opuntia basilaris var. treleasei)		Synonym
Opuntia ursina (Under Opuntia polyacantha var. erinacea)		Synonym
Opuntia vaseyi		Native
Opuntia whitneyana (Under Opuntia basilaris var. basilaris)		Synonym
Opuntia wigginsii (Under Cylindropuntia echinocarpa)		Synonym
Opuntia wolfii (Under Cylindropuntia wolfii)		Synonym
Orchidaceae ↳ Key to Orchidaceae	ORCHID FAMILY
Orcuttia ↳ Key to Orcuttia
Orcuttia californica	CALIFORNIA ORCUTT GRASS	Native
Orcuttia californica var. inaequalis (Under Orcuttia inaequalis)		Synonym
Orcuttia californica var. viscida (Under Orcuttia viscida)		Synonym
Orcuttia greenei (Under Tuctoria greenei)		Synonym
Orcuttia inaequalis	SAN JOAQUIN VALLEY ORCUTT GRASS	Native
Orcuttia mucronata (Under Tuctoria mucronata)		Synonym
Orcuttia pilosa	HAIRY ORCUTT GRASS	Native
Orcuttia tenuis	SLENDER ORCUTT GRASS	Native
Orcuttia viscida	SACRAMENTO ORCUTT GRASS	Native
Oreobroma aridorum (Under Lewisia pygmaea)		Synonym
Oreobroma brachycalyx (Under Lewisia brachycalyx)		Synonym
Oreobroma congdonii (Under Lewisia congdonii)		Synonym
Oreobroma exarticulatum (Under Lewisia pygmaea)		Synonym
Oreobroma heckneri (Under Lewisia cotyledon var. heckneri)		Synonym
Oreobroma howellii (Under Lewisia cotyledon var. howellii)		Synonym
Oreobroma leeanum (Under Lewisia leeana)		Synonym
Oreobroma longipetalum (Under Lewisia longipetala)		Synonym
Oreobroma oppositifolium (Under Lewisia oppositifolia)		Synonym
Oreobroma triphyllum (Under Lewisia triphylla)		Synonym
Oreocarya ↳ Key to Oreocarya
Oreocarya abortiva	BOW-NUT OREOCARYA	Native
Oreocarya confertiflora	YELLOW-FLOWERED OREOCARYA	Native
Oreocarya crymophila	SUBALPINE OREOCARYA	Native
Oreocarya flavoculata	YELLOW-EYED OREOCARYA	Native
Oreocarya glomerata	COCKS-COMB CAT'S-EYE	Native
Oreocarya hoffmannii	WHITE MOUNTAINS OREOCARYA	Native
Oreocarya humilis subsp. humilis	LOW OREOCARYA	Native
Oreocarya nubigena	SIERRA OREOCARYA	Native
Oreocarya roosiorum	BRISTLECONE OREOCARYA	Native
Oreocarya schoolcraftii	SCHOOLCRAFT'S OREOCARYA	Native
Oreocarya sobolifera	CREEPING OREOCARYA	Native
Oreocarya subretusa	CRATER LAKE OREOCARYA	Native
Oreocarya tumulosa	NEW YORK MOUNTAINS OREOCARYA	Native
Oreocarya virginensis	VIRGIN RIVER OREOCARYA	Native
Oreonana ↳ Key to Oreonana
Oreonana clementis		Native
Oreonana purpurascens	PURPLE MOUNTAIN-PARSLEY	Native
Oreonana vestita	WOOLLY MOUNTAIN-PARSLEY	Native
Oreostemma ↳ Key to Oreostemma	ASTER
Oreostemma alpigenum var. andersonii		Native
Oreostemma elatum	TALL ALPINE-ASTER	Native
Oreostemma peirsonii		Native
Origanum ↳ Key to Origanum
Origanum ×majoricum	ITALIAN OREGANO, HARDY SWEET MARJORAM	Naturalized
Origanum vulgare subsp. hirtum	OREGANO	Naturalized
Ornithopus ↳ Key to Ornithopus
Ornithopus pinnatus		Naturalized
Ornithopus sativus	COMMON BIRDSFOOT	Naturalized
Ornithopus sativus subsp. isthmocarpus (Under Ornithopus sativus)		Synonym
Ornithopus sativus subsp. sativus (Under Ornithopus sativus)		Synonym
Ornithopus sativus var. macrorrhynchus (Under Ornithopus sativus)		Synonym
Ornithostaphylos
Ornithostaphylos oppositifolia	BAJA CALIFORNIA BIRDBUSH	Native
Orobanchaceae ↳ Key to Orobanchaceae	BROOMRAPE FAMILY
Orobanche bulbosa (Under Aphyllon tuberosum)		Synonym
Orobanche californica (Under Aphyllon californicum)		Synonym
Orobanche californica subsp. condensa (Under Aphyllon californicum subsp. condensum)		Synonym
Orobanche californica subsp. feudgei (Under Aphyllon californicum subsp. feudgei)		Synonym
Orobanche californica subsp. grandis (Under Aphyllon californicum subsp. grande)		Synonym
Orobanche californica subsp. grayana (Under Aphyllon californicum subsp. grayanum)		Synonym
Orobanche californica subsp. jepsonii (Under Aphyllon californicum subsp. jepsonii)		Synonym
Orobanche californica var. californica (Under Aphyllon vallicola)		Unabridged misapplied name
Orobanche californica var. claremontensis (Under Aphyllon vallicola)		Unabridged misapplied name
Orobanche californica var. corymbosa (Under Aphyllon corymbosum)		Synonym
Orobanche californica var. parishii (Under Aphyllon parishii subsp. parishii)		Synonym
Orobanche cooperi (Under Aphyllon cooperi)		Synonym
Orobanche corymbosa (Under Aphyllon corymbosum)		Synonym
Orobanche fasciculata (Under Aphyllon fasciculatum)		Synonym
Orobanche fasciculata var. franciscana (Under Aphyllon franciscanum)		Synonym
Orobanche fasciculata var. lutea (Under Aphyllon fasciculatum)		Synonym
Orobanche fasciculata var. subulata (Under Aphyllon fasciculatum)		Synonym
Orobanche grayana var. feudgei (Under Aphyllon californicum subsp. feudgei)		Synonym
Orobanche grayana var. grayana (Under Aphyllon californicum subsp. grayanum)		Synonym
Orobanche grayana var. jepsonii (Under Aphyllon californicum subsp. jepsonii)		Synonym
Orobanche grayana var. nelsonii (Under Aphyllon californicum subsp. californicum)		Synonym
Orobanche grayana var. violacea (Under Aphyllon californicum subsp. californicum)		Synonym
Orobanche parishii (Under Aphyllon parishii)		Synonym
Orobanche parishii subsp. brachyloba (Under Aphyllon parishii subsp. brachylobum)		Synonym
Orobanche pinorum (Under Aphyllon pinorum)		Synonym
Orobanche ramosa (Under Phelipanche ramosa)		Synonym
Orobanche uniflora (Under Aphyllon purpureum)		Unabridged misapplied name
Orobanche uniflora subsp. occidentalis (Under Aphyllon purpureum)		Synonym
Orobanche uniflora var. minuta (Under Aphyllon purpureum)		Synonym
Orobanche uniflora var. purpurea (Under Aphyllon purpureum)		Synonym
Orobanche uniflora var. sedi (Under Aphyllon purpureum)		Synonym
Orobanche valida (Under Aphyllon validum)		Synonym
Orobanche valida subsp. howellii (Under Aphyllon validum subsp. howellii)		Synonym
Orobanche vallicola (Under Aphyllon vallicola)		Synonym
Orochaenactis
Orochaenactis thysanocarpha		Native
Orogenia fusiformis (Under Lomatium fusiformis)		Synonym
Orthilia
Orthilia secunda	ONE-SIDED WINTERGREEN	Native
Orthocarpus ↳ Key to Orthocarpus
Orthocarpus attenuatus (Under Castilleja attenuata)		Synonym
Orthocarpus bidwelliae var. micranthus (Under Triphysaria micrantha)		Synonym
Orthocarpus bracteosus		Native
Orthocarpus brevistyla (Under Castilleja brevistyla)		Synonym
Orthocarpus campestris (Under Castilleja campestris)		Synonym
Orthocarpus campestris var. succulentus (Under Castilleja campestris subsp. succulenta)		Synonym
Orthocarpus castillejoides (Under Castilleja ambigua)		Synonym
Orthocarpus castillejoides var. humboldtiensis (Under Castilleja ambigua subsp. humboldtiensis)		Synonym
Orthocarpus castillejoides var. insalutatus (Under Castilleja ambigua subsp. insalutata)		Synonym
Orthocarpus copelandii (Under Orthocarpus cuspidatus subsp. copelandii)		Synonym
Orthocarpus copelandii var. cryptanthus (Under Orthocarpus cuspidatus subsp. cryptanthus)		Synonym
Orthocarpus cuspidatus		Native
Orthocarpus cuspidatus subsp. copelandii		Native
Orthocarpus cuspidatus subsp. cryptanthus		Native
Orthocarpus cuspidatus subsp. cuspidatus	SISKIYOU MOUNTAINS ORTHOCARPUS	Native
Orthocarpus densiflorus (Under Castilleja densiflora)		Synonym
Orthocarpus densiflorus (Under Castilleja densiflora subsp. densiflora)		Synonym
Orthocarpus densiflorus subsp. gracilis (Under Castilleja densiflora subsp. gracilis)		Synonym
Orthocarpus densiflorus var. gracilis (Under Castilleja densiflora subsp. gracilis)		Synonym
Orthocarpus densiflorus var. obispoensis (Under Castilleja densiflora subsp. obispoensis)		Synonym
Orthocarpus erianthus (Under Triphysaria eriantha subsp. eriantha)		Synonym
Orthocarpus erianthus var. gratiosus (Under Triphysaria eriantha subsp. eriantha)		Synonym
Orthocarpus erianthus var. micranthus (Under Triphysaria micrantha)		Synonym
Orthocarpus erianthus var. roseus (Under Triphysaria eriantha subsp. rosea)		Synonym
Orthocarpus faucibarbatus (Under Triphysaria versicolor subsp. faucibarbata)		Synonym
Orthocarpus faucibarbatus subsp. albidus (Under Triphysaria versicolor subsp. versicolor)		Synonym
Orthocarpus floribundus (Under Triphysaria floribunda)		Synonym
Orthocarpus hispidus (Under Castilleja tenuis)		Synonym
Orthocarpus imbricatus		Native
Orthocarpus lacerus (Under Castilleja lacera)		Synonym
Orthocarpus lasiorhynchus (Under Castilleja lasiorhyncha)		Synonym
Orthocarpus linearilobus (Under Castilleja lineariloba)		Synonym
Orthocarpus lithospermoides var. bicolor (Under Castilleja rubicundula subsp. rubicundula)		Synonym
Orthocarpus lithospermoides var. lithospermoides (Under Castilleja rubicundula subsp. lithospermoides)		Synonym
Orthocarpus luteus		Native
Orthocarpus micranthus (Under Triphysaria micrantha)		Synonym
Orthocarpus pachystachyus	SHASTA ORTHOCARPUS	Native
Orthocarpus purpurascens (Under Castilleja exserta)		Synonym
Orthocarpus purpurascens (Under Castilleja exserta subsp. exserta)		Synonym
Orthocarpus purpurascens var. latifolius (Under Castilleja exserta subsp. latifolia)		Synonym
Orthocarpus purpurascens var. ornatus (Under Castilleja exserta subsp. venusta)		Synonym
Orthocarpus purpurascens var. pallidus (Under Castilleja exserta subsp. exserta)		Synonym
Orthocarpus pusillus (Under Triphysaria pusilla)		Synonym
Orthocarpus versicolor var. roseus (Under Triphysaria eriantha subsp. rosea)		Synonym
Oryctes
Oryctes nevadensis	NEVADA ORYCTES	Native
Oryza	RICE
Oryza sativa		Naturalized
Oryzopsis exigua (Under Stipa exigua)		Synonym
Oryzopsis hymenoides (Under Stipa hymenoides)		Synonym
Oryzopsis kingii (Under Stipa kingii)		Synonym
Oryzopsis micrantha (Under Stipa divaricata)		Synonym
Oryzopsis miliacea (Under Stipa miliacea var. miliacea)		Synonym
Oryzopsis webberi (Under Stipa webberi)		Synonym
Osmadenia
Osmadenia tenella	OSMADENIA	Native
Osmaronia cerasiformis (Under Oemleria cerasiformis)		Synonym
Osmorhiza ↳ Key to Osmorhiza	SWEET-CICELY
Osmorhiza berteroi		Native
Osmorhiza brachypoda		Native
Osmorhiza chilensis (Under Osmorhiza berteroi)		Synonym
Osmorhiza depauperata	BLUNT-FRUITED SWEET-CICELY	Native
Osmorhiza occidentalis		Native
Osmorhiza purpurea		Native
Osteospermum ecklonis (Under Dimorphotheca ecklonis)		Synonym
Osteospermum fruticosum (Under Dimorphotheca fruticosa)		Synonym
Ottelia
Ottelia alismoides		Extirpated alien
Ourisia californica (Under Hesperochiron nanus)		Synonym
Oxalidaceae	OXALIS FAMILY
Oxalis ↳ Key to Oxalis
Oxalis albicans subsp. californica (Under Oxalis californica)		Synonym
Oxalis albicans subsp. pilosa (Under Oxalis pilosa)		Synonym
Oxalis articulata subsp. rubra	WINDOWBOX WOOD-SORREL	Naturalized
Oxalis bowiei	BOWIE'S WOOD-SORREL	Waif
Oxalis californica	CALIFORNIA WOOD-SORREL	Native
Oxalis cernua (Under Oxalis pes-caprae)		Synonym
Oxalis corniculata		Naturalized
Oxalis corniculata subsp. pilosa (Under Oxalis pilosa)		Synonym
Oxalis corniculata var. wrightii (Under Oxalis pilosa)		Synonym
Oxalis incarnata	CRIMSON WOOD-SORREL	Naturalized
Oxalis laxa (Under Oxalis micrantha)		Misapplied name
Oxalis micrantha	DWARF WOOD-SORREL	Naturalized
Oxalis oregana	OREGON WOOD SORREL	Native
Oxalis oregana f. smalliana (Under Oxalis smalliana)		Synonym
Oxalis oregana var. smalliana (Under Oxalis smalliana)		Synonym
Oxalis oregana var. smallii (Under Oxalis smalliana)		Illegitimate name
Oxalis pes-caprae	BERMUDA BUTTERCUP	Naturalized
Oxalis pilosa		Native
Oxalis purpurea	PURPLE WOOD-SORREL	Waif
Oxalis rubra (Under Oxalis articulata subsp. rubra)		Synonym
Oxalis smalliana	REDWOOD SORREL	Native
Oxalis smallii (Under Oxalis smalliana)		Illegitimate name
Oxalis suksdorfii	SUKSDORF'S WOOD-SORREL	Native
Oxalis trilliifolia		Native
Oxalis variabilis (Under Oxalis purpurea)		Synonym
Oxybaphus coccineus (Under Mirabilis coccinea)		Synonym
Oxybaphus laevis (Under Mirabilis laevis)		Synonym
Oxybaphus nyctagineus (Under Mirabilis nyctaginea)		Synonym
Oxypolis
Oxypolis occidentalis		Native
Oxyria	MOUNTAIN SORREL
Oxyria digyna		Native
Oxystylis lutea (Under Cleomella oxystyloides)		Synonym
Oxytenia acerosa (Under Euphrosyne acerosa)		Synonym
Oxytheca ↳ Key to Oxytheca
Oxytheca abramsii (Under Acanthoscyphus parishii var. abramsii)		Synonym
Oxytheca caryophylloides (Under Sidotheca caryophylloides)		Synonym
Oxytheca dendroidea subsp. dendroidea	TREE-LIKE PUNCTUREBRACT	Native
Oxytheca dendroidea var. foliosa (Under Oxytheca dendroidea subsp. dendroidea)		Synonym
Oxytheca dendroidea var. hillmanii (Under Oxytheca dendroidea subsp. dendroidea)		Synonym
Oxytheca emarginata (Under Sidotheca emarginata)		Synonym
Oxytheca foliosa (Under Oxytheca dendroidea subsp. dendroidea)		Synonym
Oxytheca glandulosa (Under Eriogonum glandulosum)		Synonym
Oxytheca hirtiflora (Under Eriogonum hirtiflorum)		Synonym
Oxytheca inermis (Under Eriogonum inerme var. inerme)		Synonym
Oxytheca insignis (Under Aristocapsa insignis)		Synonym
Oxytheca luteola (Under Goodmania luteola)		Synonym
Oxytheca parishii (Under Acanthoscyphus parishii)		Synonym
Oxytheca parishii subsp. abramsii (Under Acanthoscyphus parishii var. abramsii)		Synonym
Oxytheca parishii var. abramsii (Under Acanthoscyphus parishii var. abramsii)		Synonym
Oxytheca parishii var. cienegensis (Under Acanthoscyphus parishii var. cienegensis)		Synonym
Oxytheca parishii var. goodmaniana (Under Acanthoscyphus parishii var. goodmaniana)		Synonym
Oxytheca parishii var. parishii (Under Acanthoscyphus parishii var. parishii)		Synonym
Oxytheca perfoliata	ROUND-LEAF PUNCTUREBRACT	Native
Oxytheca reddingiana (Under Eriogonum spergulinum var. reddingianum)		Synonym
Oxytheca spergulina (Under Eriogonum spergulinum var. spergulinum)		Synonym
Oxytheca trilobata (Under Sidotheca trilobata)		Synonym
Oxytheca watsonii	WATSON'S OXYTHECA	Native
Oxytropis ↳ Key to Oxytropis	LOCOWEED, OXYTROPE
Oxytropis borealis	BOREAL LOCOWEED	Native
Oxytropis borealis var. australis		Native
Oxytropis borealis var. viscida	STICKY OXYTROPE	Native
Oxytropis deflexa var. culminis (Under Oxytropis deflexa var. sericea)		Synonym
Oxytropis deflexa var. sericea	BLUE PENDENT-POD OXYTROPE	Native
Oxytropis oreophila		Native
Oxytropis oreophila var. juniperina	MOUNTAIN OXYTROPE	Native
Oxytropis oreophila var. oreophila	ROCK-LOVING OXYTROPE	Native
Oxytropis parryi	PARRY'S OXYTROPE	Native
Oxytropis viscida (Under Oxytropis borealis var. viscida)		Synonym
Ozomelis ↳ Key to Ozomelis
Ozomelis diversifolia		Native
Ozomelis trifida		Native

Jepson eFlora: Index Page

Vascular Plants of California

Key to families | Table of families and genera

Scientific Name

Index Page: O

Jepson eFlora: Index Page

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

Index Page: O

Vascular Plants of California

Key to families | Table of families and genera

Scientific Name