Encelia farinosa
Encelia resinifera
brittlebush, incienso
button brittlebush, sticky brittlebush
branched distally, tomentose, developing smooth barks.
with slender branches from trunks, glabrate, 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 2–6 mm;
blades green, lanceolate to ovate, 10–25 mm, apices usually acute, sometimes obtuse, faces strigose, gland-dotted.
glabrous except near heads (± yellow).
strigose to glabrate.
4–10 mm.
5–11 mm.
11–21;
corolla laminae 8–12 mm.
8–13;
corolla laminae 8–12 mm.
yellow or brown-purple, 5–6 mm.
yellow, 5–6 mm.
lanceolate.
lanceolate.
in paniculiform arrays (branching among heads mainly distal).
borne singly.
3–6 mm;
pappi 0.
5–8 mm;
pappi 0.
= 36.
= 36.
Encelia farinosa
Encelia resinifera
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.)
Plants of Encelia resinifera from the Grand Canyon of the Colorado with lengths of leaf blades and ray laminae at least three times their widths are subsp. tenuifolia.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CA
WildflowerSearch
iNaturalist
USDA Plants Database
