Pentachaeta exilis
meager pentachaeta, meager pygmydaisy, slender pentachaeta
simple or branched, rarely with many branches from bases.
blades linear to filiform, 12–32 × 0.5–1 mm.
turbinate to campanulate.
3–6(–15);
corollas yellowish to reddish, club-shaped, widened through limbs, abruptly contracted at lobes, lobes 5, (lobes and sometimes distalmost portion of limbs) yellow or purplish red at maturity, style branches (0.7–)1–2 mm, stigmatic portions 0.4–0.5 mm.
in 2(–3) series, elliptic to obovate, glabrous or sparsely and minutely glandular.
(or pistillate) florets 0 or 1–5;
corollas white, laminae 0.8–2 mm, or 0, or apiculum 0.1–0.5(–1) mm.
0, or of (3–)5 bristles, not dilated at bases.
= 18.
Pentachaeta exilis
Subspecies 2 (2 in the flora).
Plants of Pentachaeta exilis with greatly reduced or completely absent pappi apparently are scattered over the range of the species. This feature is relatively constant within a population.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Ray (pistillate) corollas elaminate or with apiculum 0.1–0.5(–1) mm; disc florets 3–6(–15), corolla lobes red-purple, style branches (0.7–)1–2 mm, stigmatic portions 0.4–0.5 mm | subsp. exilis |
1. Ray (pistillate) corollas laminate, laminae 0.8–2 mm; disc florets (7–)15–34, corolla lobes yellow, style branches 2–3 mm, stigmatic portions 0.6–1mm | subsp. aeolica |
CA
WildflowerSearch
iNaturalist
USDA Plants Database
