Encelia virginensis
Encelia resinifera
Virgin River brittlebush, Virgin River encelia
button brittlebush, sticky brittlebush
with slender branches from bases, hairy, developing fissured barks.
with slender branches from trunks, glabrate, developing fissured barks.
cauline;
petioles 2–7 mm;
blades gray-green, narrowly ovate to deltate, 12–25 mm, apices acute or obtuse, faces sparsely canescent and strigose.
cauline;
petioles 2–6 mm;
blades green, lanceolate to ovate, 10–25 mm, apices usually acute, sometimes obtuse, faces strigose, gland-dotted.
canescent.
strigose to glabrate.
9–13 mm.
5–11 mm.
11–21;
corolla laminae 8–15 mm.
8–13;
corolla laminae 8–12 mm.
yellow, 5–6 mm.
yellow, 5–6 mm.
narrowly ovate.
lanceolate.
borne singly.
borne singly.
5–8 mm;
pappi usually 0, rarely of 1–2 bristlelike awns.
5–8 mm;
pappi 0.
= 36.
= 36.
Encelia virginensis
Encelia resinifera
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.)
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
