Encelia californica
Encelia scaposa
bush sunflower, California brittlebush
onehead brittlebush
with slender branches from bases, glabrous, developing smooth or roughened barks.
contracted, at soil surface or ± subterranean (except peduncles).
cauline;
petioles 5–25 mm;
blades green, rhombic or narrowly ovate, 30–60 mm, apices acute, faces glabrous.
mostly basal;
petioles ± wanting or merging with blades;
blades greenish to cinereous, (proximalmost scalelike) mostly narrowly oblanceolate to linear, 30–100 mm (including attenuate bases, mostly 1–8 mm wide), faces ± hirtellous to scabrellous.
pubescent.
± scabrellous.
10–12 mm.
12–22 mm.
15–25;
corolla laminae 15–35 mm.
20–40.
brown-purple, 5–6 mm.
yellow, ca. 5 mm.
lanceolate.
linear.
borne singly.
borne singly.
5–7 mm;
pappi 0.
(cuneate to obovate) ca. 5 mm (faces ± villous);
pappi (readily falling) of 2 (± villous) bristlelike awns.
= 36.
Encelia californica
Encelia scaposa
Although Encelia scaposa traditionally has been included within Encelia, it seems misplaced here. Its cypselae differ from those of other encelias in lacking a narrowed apical notch and in having more or less villous (rather than mostly glabrous) faces. Molecular evidence suggests that it may be closer to Flourensia than to members of the alliance comprising Encelia, Enceliopsis, and Geraea.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CA
WildflowerSearch
iNaturalist
USDA Plants Database
