Ericameria paniculata |
|
---|---|
black-banded rabbitbrush, Mojave rabbitbrush, punctate rabbitbrush |
|
Habit | Plants 50–200 cm. |
Stems | erect to spreading, green when young, often black-banded or splotched (from fungal infections), fastigiately branched, glabrous, gland-dotted, resinous. |
Leaves | mostly ascending; blades filiform (adaxially sulcate), 10–35 × 0.5–1.5 mm, midnerves obscure, apices apiculate, faces glabrous, gland-dotted (in circular, deep pits), resinous; axillary fascicles usually absent. |
Peduncles | 2–12 mm (bracts 0–10, leaflike). |
Involucres | subcylindric, 5.5–9 × 3.5–7 mm. |
Ray florets | 0. |
Disc florets | 5–8; corollas 5–7 mm. |
Phyllaries | 13–20 in 3–5 series, tan, lanceolate to elliptic, 1–5 × 0.5–1.7 mm, unequal, mostly chartaceous, membranous, midnerves not or slightly raised, faint on distal 1/2, (margins entire, sometimes ciliate distally) apices erect, acute to rounded, apiculate, abaxial faces glabrous, ± resinous. |
Heads | in paniculiform arrays (5–50 mm wide). |
Cypselae | tan to brown, narrowly elliptic to oblanceoloid, 3.5–4.5 mm (ribs ca. 5), sericeous; pappi off-white to brown, 5.5–6.5 mm. |
2n | = 18. |
Ericameria paniculata |
|
Phenology | Flowering late summer–fall. |
Habitat | Stony open deserts and washes |
Elevation | 400–1600 m (1300–5200 ft) |
Distribution |
AZ; CA; NV; UT
|
Source | FNA vol. 20, p. 71. |
Parent taxa | Asteraceae > tribe Astereae > Ericameria |
Sibling taxa | |
Synonyms | Bigelowia paniculata, Chrysothamnus paniculatus |
Name authority | (A. Gray) Rydberg: Fl. Rocky Mts., 1066. (1917) |
Web links |