Lasthenia minor |
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coastal goldfields |
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Habit | Annuals, to 35 cm (herbage not sweetly scented). |
Stems | erect, branched distally, ± woolly, especially distally. |
Leaves | broadly to narrowly linear, 20–120 × 1–10 mm, margins entire or irregularly toothed or lobed (lobes to 1.5 mm), faces glabrous or villous. |
Involucres | hemispheric, 4–6 mm. |
Receptacles | conic, muricate, glabrous. |
Ray florets | (8–)13; (corollas light to golden yellow) laminae oblong, 4–8 mm. |
Phyllaries | 7–14, oblong to ovate, hairy (especially at margins). |
Cypselae | black, narrowly clavate, 2–2.5 mm, glabrous or hairy; pappi 0, or of 2–3(–4) brown or white, lanceolate or subulate, aristate scales plus 4–5+ shorter, ± truncate, fimbriate scales. |
Anther | appendages ovate or elliptic, acute (style apices ± deltate with apical tufts of hairs and subapical fringes of shorter hairs). |
2n | = 8. |
Lasthenia minor |
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Phenology | Flowering Mar–Jun. |
Habitat | Grasslands, coastal and inland |
Elevation | 0–700 m (0–2300 ft) |
Distribution |
CA
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Discussion | Lasthenia minor is variable; coastal plants tend to have lower stature and broader leaves and tend to flower later in the year. Inland populations were once common in the San Joaquin Valley and are now harder to find as grasslands become cultivated, grazed, or built upon. Epappose plants are common and sometimes comprise entire populations. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 21, p. 347. |
Parent taxa | Asteraceae > tribe Heliantheae > subtribe Baeriinae > Lasthenia > sect. Ptilomeris |
Sibling taxa | |
Synonyms | Monolopia minor, Baeria minor |
Name authority | (de Candolle) Ornduff: Univ. Calif. Publ. Bot. 40: 80. (1966) |
Web links |
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