Lasthenia glabrata
Lasthenia platycarpha
yellow ray goldfields
alkali goldfields
erect, branched distally, glabrous or slightly hairy.
erect, branched proximally, glabrous or woolly to villous, especially distally.
linear or subulate, 40–150 × 2–3+ mm, margins entire, faces glabrous.
linear, 10–60 × 1–2+ mm (simple blades or single lobes), margins usually lobed, sometimes entire, faces glabrous or hairy.
hemispheric, 5–10 mm.
obconic, 6–8 mm.
± conic, papillate, glabrous or sparsely hairy.
conic, muricate, glabrous or sparsely hairy.
7–15; (corollas yellow) laminae oblong, 4–14 mm.
6–13;
laminae elliptic, 7–8 mm.
10–14, ± lanceolate (distinct tips ± deltate), glabrous but for apices.
6–9, elliptic to ovate, glabrous or villous.
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 to gray, narrowly clavate, 1.5–3.5 mm, hairy;
pappi of 4–6 white or yellowish, lanceolate to ovate, aristate scales.
appendages deltate or broadly ovate.
appendages deltate.
= 8.
Lasthenia glabrata
Lasthenia platycarpha
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 platycarpha is known only from highly saline soils and is frequently found with species of sects. Hologymne and Ornduffia, particularly L. fremontii. In the northern part of its range, L. platycarpha is more robust and has longer pappus scales and more densely pubescent peduncles. Plants with entire leaves resemble species of sect. Amphiachaenia; L. platycarpha does not have anthochlor pigments that turn red in aqueous alkali.
(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
