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Lasthenia californica subsp. macrantha
PERENNIAL GOLDFIELDS

Higher Taxonomy
Family: Asteraceae (Compositae)View DescriptionDichotomous Key

Common Name: SUNFLOWER FAMILY
Habit: Annual to tree. Leaf: basal and/or cauline, alternate, opposite, rarely whorled, simple to 2+ × compound. Inflorescence: 1° inflorescence a head, resembling a flower, of several types (see below), 1--many in generally +- cyme-like cluster; each head generally with +- calyx-like involucre of 1--many series of phyllaries (involucre bracts); receptacle of head flat to conic or columnar, paleate (bearing paleae = receptacle bracts) or epaleate; flowers 1--many per head. Flower: bisexual, unisexual, or sterile, +- small, of several types (see below); calyx 0 or modified into +- persistent pappus of bristles, scales, and/or awns; corolla radial or bilateral (0), lobes generally (0)3--5; stamens 4--5, filaments generally free, generally fused to corolla at tube/throat junction, anthers generally fused into cylinder around style, anther base generally rounded or cordate (deeply sagittate or with tail-like appendages), tip (= flattened appendage) generally projecting beyond pollen sac; pistil 1, 2-carpeled, ovary inferior, 1-chambered, 1-seeded, placenta basal, style 1, tip generally +- 2-branched (except in some staminate disk flowers), branch tips truncate or generally bearing +- brush-like appendages; stigmas 2, generally on adaxial faces of style branches. Fruit: achene (also called a cypsela) (drupe in Chrysanthemoides), cylindric to ovoid, sometimes compressed, generally deciduous with pappus attached.
Genera In Family: +- 1500 genera, 23000 species: worldwide, many habitats. Note: Flower and head types differ in form and sexual condition. A disk flower has a generally radial corolla, with a cylindric tube, expanded throat, and generally 5 lobes. Disk flowers are generally bisexual and fertile but occasionally staminate with reduced ovaries. Discoid heads comprise only disk flowers. A radiant head is a variant of a discoid head, with peripheral disk flower corollas expanded, often bilateral. A ray flower corolla is bilateral, generally with a slender tube and flattened petal-like ray (single lip composed of generally 3 lobes). Ray flowers are generally pistillate or sterile (occasionally lacking styles). Radiate heads have peripheral ray flowers and central disk flowers. Disciform heads superficially resemble discoid heads, with pistillate or sterile flowers that lack rays, together with or separate from disk flowers. A ligulate flower is bisexual, with a bilateral, generally ephemeral corolla and 5-lobed ligule. Liguliflorous heads comprise only ligulate flowers. See glossary p. 31 for illustrations of family characteristics. Echinops sphaerocephalus L., Gaillardia aristata Pursh, Gaillardia pulchella Foug., Hymenothrix loomisii S.F. Blake, Tagetes erecta L., Thelesperma megapotamicum (Spreng.) Kuntze are waifs. Melampodium perfoliatum Kunth, historic urban waif. Ageratum conyzoides L., Guizotia abyssinica (L. f.) Cass., Santolina chamaecyparisus L., orth. var. are rare or uncommon escapes from cultivation. Dyssodia papposa, Ismelia carinata (Schousb.) Sch. Bip. [Chrysanthemum carinatum Schousb.], Mantisalca salmantica (L.) Briq. & Cavill. are historical or extirpated waifs in California. Inula helenium L. not documented in California. Taxa of Aster in TJM (1993) treated here in Almutaster, Eucephalus, Eurybia, Ionactis, Oreostemma, Sericocarpus, Symphyotrichum; Chamomilla in Matricaria; Cnicus in Centaurea; Conyza in Erigeron and Laennecia; Dugaldia in Hymenoxys; Erechtites in Senecio; Hymenoclea in Ambrosia; Lembertia in Monolopia; Osteospermum ecklonis in Dimorphotheca; Picris echioides in Helminthotheca; Prionopsis in Grindelia; Raillardiopsis in Anisocarpus and Carlquistia; Schkuhria multiflora in Bahia; Trimorpha in Erigeron; Venidium in Arctotis; Whitneya in Arnica. Taxa of Arida in TJM2 (2012) treated here in Leucosyris.
Unabridged Note: Largest family of vascular plants in California and of eudicots globally.
eFlora Treatment Author: David J. Keil, except as noted
Scientific Editor: David J. Keil, Bruce G. Baldwin.
Genus: LastheniaView DescriptionDichotomous Key

Common Name: GOLDFIELDS
Habit: Annual, perennial herb, glabrous or hairy. Stem: generally branched, generally erect, < 60 cm. Leaf: opposite (or distal-most alternate), < 20 cm, entire to pinnately cut. Inflorescence: heads radiate (disciform), 1 or in cyme-like cluster; involucre cylindric to obconic, bell-shaped, or hemispheric; phyllaries 4--18 in 1(2) series, free or +- fused; receptacle narrowly conic to hemispheric, smooth, pitted, or rough, epaleate. Ray Flower: 4--16; ray generally yellow (short or 0). Disk Flower: generally many; corolla generally (4)5-lobed, generally yellow to +- orange; anther tip awl-shaped to triangular; style tips triangular or dome-shaped, generally hair-tufted. Fruit: < 5 mm, cylindric to obovoid, black to gray; pappus of awns, scales, or 0.
Species In Genus: 18 species: western North America, Chile. Etymology: (Greek: female student of Plato who dressed as a man) Note: Generally self-sterile.
eFlora Treatment Author: Raymund Chan & Robert Ornduff
Species: Lasthenia californicaView Description 

Habit: Annual, perennial herb < 40 cm. Stem: erect or decumbent, simple or freely branched, +- hairy. Leaf: 0.8--21 cm, linear to oblanceolate or oblong, +- entire or with 3--5+ teeth, glabrous or +- hairy, +- fleshy in coastal forms. Inflorescence: involucre 5--14 mm, bell-shaped to depressed-hemispheric or hemispheric; phyllaries 4--16 in 1--2 series, free, hairy, persistent or falling with fruits; receptacle conic, rough, glabrous. Ray Flower: 6--16; corolla dark red in alkali solution; ray 5--18 mm. Disk Flower: many; anther tip +- lanceolate to triangular; style tips triangular. Fruit: < 4 mm, linear to narrowly club-shaped, glabrous or hairy, black to gray or silver-gray; pappus of 1--7 clear, brown, linear to awl-like scales, or 0. Chromosomes: 2n=16, 32, 48.


Lasthenia californica subsp. macrantha (A. Gray) R. Chan
NATIVE
Habit: Perennial herb (annual), roots fibrous, not clustered. Stem: generally decumbent, generally branched at base. Leaf: 2.8--8.8 cm, 1.5--15 mm wide, linear to oblong, entire or with 3--5+ teeth. Inflorescence: involucre 9--14 mm, bell-shaped to depressed-hemispheric; phyllaries 9--16 in 2 series, +- persistent. Ray Flower: 8--16; ray 6--18 mm. Disk Flower: anther tip +- lanceolate to triangular. Fruit: glabrous, silver-gray; pappus of 1--4 clear, brown, awl-like scales, or 0. Chromosomes: 2n=48.
Ecology: Grassland, dunes along immediate coast; Elevation: < 500 m. Bioregional Distribution: NCo, CCo. Flowering Time: All year, mostly May--Aug
Synonyms: Lasthenia macrantha (A. Gray) Greene
eFlora Treatment Author: Raymund Chan & Robert Ornduff
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Listed on CNPS Rare Plant Inventory

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Citation for this treatment: Raymund Chan & Robert Ornduff 2016. Lasthenia californica subsp. macrantha, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=79085, accessed on May 24, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 24, 2016.


Lasthenia californica subsp. macrantha
click for enlargement
© 2011 Neal Kramer
Lasthenia californica subsp. macrantha
click for enlargement
© 2015 Barry Breckling
Lasthenia californica subsp. macrantha
click for enlargement
© 2011 Neal Kramer
Lasthenia californica subsp. macrantha
click for enlargement
© 2013 Neal Kramer
Lasthenia californica subsp. macrantha
click for enlargement
© 2015 Barry Breckling
Lasthenia californica subsp. macrantha
click for enlargement
© 2011 Neal Kramer

More photos of Lasthenia californica subsp. macrantha in CalPhotos


Geographic subdivisions for Lasthenia californica subsp. macrantha:
NCo, CCo.
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.