Lasthenia glabrata
Lasthenia debilis
yellow ray goldfields
Greene's goldfields
erect, branched distally, glabrous or slightly hairy.
erect, usually branched proximally, sometimes distally, villous.
linear or subulate, 40–150 × 2–3+ mm, margins entire, faces glabrous.
linear to linear-oblong, 10–80 × 1–5.5 mm, margins usually entire, sometimes 1–2-toothed (teeth to 2 mm), faces hairy.
hemispheric, 5–10 mm.
campanulate to obconic, 5–7 mm.
± conic, papillate, glabrous or sparsely hairy.
subulate, papillate, glabrous.
7–15; (corollas yellow) laminae oblong, 4–14 mm.
5–10; (corollas yellow or white) laminae broadly elliptic to oblong, 3–5 mm.
lobes 5.
10–14, ± lanceolate (distinct tips ± deltate), glabrous but for apices.
5, obovate to ovate, slightly hairy.
showy.
gray, clavate or obovoid, 2–3.5 mm, margins not ciliate, faces glabrous, or hairy and papillate (papillae rusty or yellowish, wartlike);
pappi 0.
black, ± linear, to 3 mm, hairy;
pappi 0, or of 2–4 brown or white, ovate or lanceolate, aristate scales.
appendages deltate or broadly ovate.
appendages deltate (with 1–4 wartlike glands; style apices ± deltate with apical tufts of hairs and subapical fringes of shorter hairs).
= 8.
Lasthenia glabrata
Lasthenia debilis
Subspecies 2 (2 in the flora).
Historically, aboriginal Californians used fruits and leaves of Lasthenia glabrata for food. The subspecies are allopatric and almost identical except for their cypselae.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Lasthenia debilis is inconspicuous and has pale green foliage and lightly pigmented, relatively short rays. Populations with white or nearly white rays, uncharacteristic for lasthenias, are known.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Cypselae glabrous, not papillate | subsp. glabrata |
1. Cypselae ± hairy and papillate | subsp. coulteri |
CA
WildflowerSearch
iNaturalist
USDA Plants Database
