Flora of North America species comparison

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Lasthenia fremontii

Fremont's goldfields, vernal pool goldfields
Habit Annuals, to 35 cm.
Stems

erect, branched proximally, glabrous proximally, ± hairy distally.
Leaves

linear, 10–60 × 1–2+ mm (simple blades or single lobes), margins entire or with 1–3 pairs of linear lobes, faces glabrous or sparsely hairy.
Involucres

hemispheric or obconic, 4–7.5 mm.
Receptacles

dome-shaped, muricate, hairy.
Ray florets

6–13;

laminae oblong to oval, 5–7 mm.
Phyllaries

8–16 (distinct), ovate, hairy.
Cypselae

black or gray, clavate, to 1.5 mm, usually scabrous, rarely glabrous;

pappi usually of (3–)4(–5) subulate, aristate scales plus 3–5+ shorter, ± subulate scales or teeth, rarely of aristate scales only, or 0.
Anther

appendages linear to narrowly ovate.
2n

= 12.

Lasthenia fremontii
Phenology Flowering Mar–May.
Habitat Vernal pools and wet meadows
Elevation 0–700 m (0–2300 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

Pappose and epappose plants of Lasthenia fremontii sometimes occur together. The ranges of L. fremontii and L. conjugens overlap slightly; the two species sometimes occur together.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 21, p. 345.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Baeriinae > Lasthenia > sect. Ornduffia
Sibling taxa
L. burkei, L. californica, L. chrysantha, L. conjugens, L. coronaria, L. debilis, L. ferrisiae, L. glaberrima, L. glabrata, L. gracilis, L. leptalea, L. maritima, L. microglossa, L. minor, L. ornduffii, L. platycarpha
Synonyms Dichaeta fremontii, Baeria fremontii
Name authority (Torrey ex A. Gray) Greene: Man. Bot. San Francisco, 204. (1894)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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