Lasthenia coronaria |
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crowned goldfields, crowned or royal goldfields, royal goldfields |
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Habit | Annuals, to 40 cm (herbage sweetly scented). |
Stems | erect, branched distally, usually glandular-puberulent (often with longer non-glandular hairs as well). |
Leaves | linear, 15–60 × 0.5–5 mm, (not fleshy) margins entire or 1–2-pinnately lobed, faces hairy. |
Involucres | hemispheric to obconic, 4–7 mm. |
Receptacles | conic, smooth, muricate, or pitted, hairy. |
Ray florets | 6–15; (corollas yellow) laminae linear-oblong or oblong, 3–10 mm. |
Phyllaries | 6–14, lanceolate to ovate, hairy. |
Cypselae | black, linear to narrowly clavate, to 2.5 mm, hairy; pappi usually of 5–6+ lanceolate to ovate scales (1–5 uniaristate), sometimes of 4–5 subulate, aristate scales, or 0. |
Anther | appendages elliptic, acute (style apices ± deltate with apical tufts of hairs and subapical fringes of shorter hairs). |
2n | = 8, 10. |
Lasthenia coronaria |
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Phenology | Flowering Mar–May. |
Habitat | Sunny, open grassy areas |
Elevation | 0–700 m (0–2300 ft) |
Distribution |
CA; Mexico (Baja California)
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Discussion | Pappus, head size, and branching pattern vary in Lasthenia coronaria. Two types of pappi are often found within a head and sometimes in different individuals of a population. The most distinctive feature of this species is its glandular herbage, which produces a characteristic sweet scent not present in any other lasthenia. (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 | Ptilomeris coronaria, Baeria californica, Baeria coronaria |
Name authority | (Nuttall) Ornduff: Univ. Calif. Publ. Bot. 40: 76. (1966) |
Web links |