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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
from FNA
AZ; CA; NV; UT
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 20, p. 71.
Parent taxa Asteraceae > tribe Astereae > Ericameria
Sibling taxa
E. albida, E. arborescens, E. arizonica, E. bloomeri, E. brachylepis, E. cervina, E. compacta, E. cooperi, E. crispa, E. cuneata, E. discoidea, E. ericoides, E. fasciculata, E. gilmanii, E. greenei, E. laricifolia, E. lignumviridis, E. linearifolia, E. linearis, E. nana, E. nauseosa, E. obovata, E. ophitidis, E. palmeri, E. parishii, E. parryi, E. pinifolia, E. resinosa, E. suffruticosa, E. teretifolia, E. watsonii, E. winwardii, E. zionis
Synonyms Bigelowia paniculata, Chrysothamnus paniculatus
Name authority (A. Gray) Rydberg: Fl. Rocky Mts., 1066. (1917)
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