Encelia farinosa
Encelia virginensis
brittlebush, incienso
Virgin River brittlebush, Virgin River encelia
branched distally, tomentose, developing smooth barks.
with slender branches from bases, hairy, developing fissured barks.
cauline (clustered near stem tips);
petioles 10–20 mm;
blades silver or gray, ovate to lanceolate, 20–70 mm, apices obtuse or acute, faces tomentose.
cauline;
petioles 2–7 mm;
blades gray-green, narrowly ovate to deltate, 12–25 mm, apices acute or obtuse, faces sparsely canescent and strigose.
glabrous except near heads (± yellow).
canescent.
4–10 mm.
9–13 mm.
11–21;
corolla laminae 8–12 mm.
11–21;
corolla laminae 8–15 mm.
yellow or brown-purple, 5–6 mm.
yellow, 5–6 mm.
lanceolate.
narrowly ovate.
in paniculiform arrays (branching among heads mainly distal).
borne singly.
3–6 mm;
pappi 0.
5–8 mm;
pappi usually 0, rarely of 1–2 bristlelike awns.
= 36.
= 36.
Encelia farinosa
Encelia virginensis
Plants of Encelia farinosa with brown-purple disc corollas, found along the Colorado and Salt rivers, and common in Baja California, are var. phenicodonta. Plants with substrigose leaves, capitulescences branched toward bases rather than distally, and ray florets reduced in both size and number are most often hybrids and backcrosses between E. farinosa and E. frutescens. P. A. Munz (1959) indicated that I. L. Wiggins had reported var. radians Brandegee ex S. F. Blake as occurring in southeastern California; that variety is known only from Baja California.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
In the mountains of the eastern Mojave Desert in California, Encelia virginensis may intergrade with E. actoni at higher elevations, probably as a result of hybridization. Plants of E. virginensis in New Mexico may be adventive.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CA
WildflowerSearch
iNaturalist
USDA Plants Database
