Lasthenia californica |
Lasthenia californica subsp. bakeri |
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California goldfields, goldfields, slender goldfields |
Baker's goldfields |
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Habit | Annuals or perennials, to 40 cm (cespitose). | Perennials (sometimes flowering first year). | ||||||||
Roots | fleshy, clustered. |
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Stems | erect or decumbent, branched proximally or distally, ± hairy. |
erect, branched distally, ± hairy. |
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Leaves | linear to oblanceolate or oblong, 8–210 × 1–5.5(–15) mm, (± fleshy in coastal forms) margins entire or with 3–5+ teeth, faces glabrous or ± hairy. |
mostly basal; blades linear to oblong, 20–210 × 1–2+ mm, not fleshy, margins entire, faces glabrous or ± hairy. |
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Involucres | campanulate to depressed-hemispheric or hemispheric, 5–14 mm. |
campanulate to depressed-hemispheric, 9–14 mm. |
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Receptacles | conic, muricate, glabrous. |
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Ray florets | 6–16; laminae linear to oblong, 5–18 mm. |
8–16; laminae elliptic to oblong, 5–16 mm. |
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Phyllaries | (persistent or falling with cypselae) 4–16 (in 1–2 series), elliptic to ovate or lanceolate to oblong, hairy. |
± persistent, 13–16 in 2 series, elliptic to ovate. |
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Cypselae | black to gray or silver-gray, linear to narrowly clavate, to 4 mm, glabrous or hairy; pappi 0, or of 1–7 translucent (rarely opaque), brown (rarely white), linear to subulate, aristate scales. |
silver-gray, linear to narrowly clavate, to 4 mm, glabrous; pappi 0, or of 1–4 translucent, brown, subulate, aristate scales (sometimes variable or 0 within heads). |
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Anther | appendages deltate to sublanceolate. |
appendages deltate to sublanceolate. |
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2n | = 48. |
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Lasthenia californica |
Lasthenia californica subsp. bakeri |
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Phenology | Flowering year round (mostly May–Jun). | |||||||||
Habitat | Grasslands, woodlands, coastal | |||||||||
Elevation | 0–500 m [0–1600 ft] | |||||||||
Distribution |
CA; OR
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CA |
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Discussion | Subspecies 3 (3 in the flora). Plants of Lasthenia californica, especially those in coastal populations, have the largest, showiest heads in the genus. Report of L. californica from Massachusetts was not confirmed for this study (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Subspecies bakeri is found along the coast in central California. Its most distinctive feature is its fleshy, clustered roots. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 21, p. 338. | FNA vol. 21, p. 339. | ||||||||
Parent taxa | ||||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | Baeria chrysostoma, L. chrysostoma, L. hirsutula | Baeria bakeri, Baeria macrantha var. bakeri, L. macrantha subsp. bakeri | ||||||||
Name authority | de Candolle ex Lindley: Edwards’s Bot. Reg. 21: sub plate 1780. (1835) | (J. T. Howell) R. Chan: Madroño 48: 208. (2002) | ||||||||
Web links |