Layia pentachaeta
Layia pentachaeta subsp. albida
Sierra layia, Sierra tidy tips
Sierra tidytips, white Sierra tidy tips
not purple-streaked.
blades oblanceolate or lanceolate to linear, 6–110 mm, margins (basal leaves) 1–2-pinnatifid.
± hemispheric, 5–12 × 2–12+ mm.
3–14;
laminae yellow or white, 3–26 mm.
white.
7–120+;
corollas 3–6 mm;
anthers yellow to brownish.
4–14, apices shorter or longer than folded bases.
glabrous.
in 1 series between ray and disc florets.
pappi 0 or of 1–22 whitish, ± equal, setiform scales 1.5–3.5 mm, each proximally plumose, seldom adaxially woolly.
= 16.
Layia pentachaeta
Layia pentachaeta subsp. albida
Subspecies 2 (2 in the flora).
Molecular phylogenetic data have indicated that Layia pentachaeta is closely related to L. glandulosa and L. discoidea (B. G. Baldwin, unpubl.). Distributions of L. pentachaeta and L. glandulosa overlap broadly; the two species occur in different habitats and natural hybridization has been rarely detected (first-generation hybrids are of low to moderate fertility; J. Clausen 1951).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Subspecies albida occurs in the southern Sierra Nevada and Tehachapi Range foothills, southern San Joaquin Valley, and South Inner Coast Ranges.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Ray corollas yellow | subsp. pentachaeta |
1. Ray corollas white | subsp. albida |
CA
WildflowerSearch
iNaturalist
USDA Plants Database
