Lasthenia californica
Lasthenia burkei
California goldfields, goldfields, slender goldfields
Burke's baeria, Burke's goldfields
erect or decumbent, branched proximally or distally, ± hairy.
erect, branched distally, hairy.
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.
linear, 10–50 × 1–2+ mm (simple blades or single lobes), margins entire or pinnately lobed, faces glabrous or ± hairy.
campanulate to depressed-hemispheric or hemispheric, 5–14 mm.
hemispheric or obconic, 4–6 mm.
conic, muricate, glabrous.
conic or dome-shaped, muriculate, glabrous or hairy.
6–16;
laminae linear to oblong, 5–18 mm.
8–13;
laminae oblong to oval, to 6 mm.
(persistent or falling with cypselae) 4–16 (in 1–2 series), elliptic to ovate or lanceolate to oblong, hairy.
7–16 (distinct), ovate, hairy.
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.
black or gray, clavate, to 1.5 mm, hairy;
pappi usually of 1(–2) aristate scales plus 3–6+ shorter, ± subulate scales.
appendages deltate to sublanceolate.
appendages linear to ± ovate.
= 12.
Lasthenia californica
Lasthenia burkei
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.
Lasthenia burkei is known only from relatively few populations in the coast ranges north of San Francisco Bay. It is allopatric from other members of Lasthenia sect. Ornduffia. It is in the Center for Plant Conservation’s National Collection of Endangered Plants.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Annuals; coastal or inland; n California, s Oregon | subsp. californica |
1. Perennials (sometimes flowering first year); coastal; California | → 2 |
2. Roots fleshy, clustered; stems erect, branched distally; leaf blades 1–2+ mm wide | subsp. bakeri |
2. Roots usually not fleshy or clustered; stems decumbent, branched proximally; leaf blades 1.5–5.5(–15) mm wide | subsp. macrantha |
CA
OR
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
