Chrysothamnus scopulorum
Grand Canyon glowweed or evening-daisy
ascending, green, becoming tan, glabrous or puberulent.
ascending to spreading;
sessile;
blades usually 5-nerved, linear to narrowly elliptic or lanceolate, 7–80 × 1–12 mm, flat, margins often ciliolate, apices attenuate to spinulose, faces glabrous or scabrellous.
obconic to subcylindric, 6.5–12 × 3–5 mm.
10–16(–20);
corollas 5.5–8 mm, lobes 1.5–2.3 mm;
style branches 2.8–3.7 mm, appendages 1.4–1.9 mm.
50–60+ in 5–6(–7) series, ± in spirals, tan, midnerves greenish to brown, raised, ± expanded apically, oblong to elliptic, 1–8.5 × 1–2 mm, unequal, mostly chartaceous, apices acute to rounded, erect, ± thickened, faces glabrous, not resinous.
in usually cymiform to corymbiform, rarely racemiform arrays, not overtopped by distal leaves.
reddish brown, cylindric, 4–6 mm, ± 4-angled, faces hairy;
pappi tan, 6–7.5 mm.
= 18 (as Haplopappus scopulorum).
WildflowerSearch
iNaturalist
