Layia pentachaeta
Layia leucopappa
Sierra layia, Sierra tidy tips
Comanche point layia, Comanche point tidytips
not purple-streaked.
not purple-streaked.
blades oblanceolate or lanceolate to linear, 6–110 mm, margins (basal leaves) 1–2-pinnatifid.
blades oblong to oblanceolate, 6–50(–80) mm, margins (basal leaves) toothed to lobed.
± hemispheric, 5–12 × 2–12+ mm.
hemispheric to depressed-hemispheric, 3.5–8(–11) × 4–10(–13) mm.
3–14;
laminae yellow or white, 3–26 mm.
6–15;
laminae white, 3–12(–19) mm.
7–120+;
corollas 3–6 mm;
anthers yellow to brownish.
20–100+;
corollas 2.5–5 mm;
anthers yellow to brownish.
4–14, apices shorter or longer than folded bases.
6–15, apices longer or shorter than folded bases.
glabrous.
sparsely hairy.
in 1 series between ray and disc florets.
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.
pappi 10–13 white, lanceolate, acuminate, ± equal scales 2–3.5 mm, not plumose, not adaxially woolly (bases sparsely setose).
= 14.
Layia pentachaeta
Layia leucopappa
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.)
Of conservation concern.
Layia leucopappa occurs in the Comanche and Tejon hills (western Tehachapi Range). Populations of the southern San Joaquin Valley (south and east of Bakersfield) have been extirpated.
(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
