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FNA | Family List | FNA Vol. 21 | Asteraceae | Brickellia

9. Brickellia coulteri A. Gray, Smithsonian Contr. Knowl. 3(5): 86. 1852.

Shrubs, 30–150 cm. Stems much branched from bases, pubescent, often gland-dotted. Leaves oppo­site; petioles 4–12 mm; blades 3-nerved from bases, broadly ovate to deltate, 10–60 × 10–30 mm, bases truncate, has­­-tate, or subcordate, margins usually toothed (1–3 sets of sharp teeth near bases), rarely subentire, apices attenuate, faces minutely pubescent. Heads in loose, paniculiform arrays. Peduncles 5–40 mm, pubescent and sometimes gland-dotted. Involucres cylindric to campanulate, 8–12 mm. Phyllaries 17–22 in 4–6 series, greenish, often purple-tinged, 4–5-striate, unequal, margins scarious (apices acute to acuminate or mucronate, minutely pubescent); outer lance-ovate to narrowly lanceolate (glabrous or sparsely pubescent), inner narrowly lanceolate to linear (glabrous). Florets 13–25; corollas pale yellow-green, often purple-tinged, 7–8.2 mm. Cypselae 3–5 mm, hispidulous, strigose, or glandular-pubescent; pappi of 28–40 smooth or barbellulate bristles.

Varieties 3 (2 in the flora}: sw United States, n Mexico.

1 Midstem leaf blades mostly 40–60 mm; peduncles mostly 15–40 mm, mostly glandular-pubescent   9a Brickellia coulteri var. coulteri
+ Midstem leaf blades mostly 20–40(–50) mm; peduncles 5–25 mm, pubescent, mostly lacking glandular hairs   9b Brickellia coulteri var. brachiata


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