Brickellia baccharidea |
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baccharis-leaf brickellia, baccharisleaf brickellbush, resinleaf brickellbush |
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Habit | Shrubs, 100–150 cm. |
Stems | (ascending) branched, pubescent, sometimes glandular-pubescent. |
Leaves | alternate; petioles 4–10 mm; blades 3-nerved from bases, rhombic-ovate, 10–40 × 10–20 mm, bases cuneate, margins laciniate-dentate, apices acute to obtuse, faces glabrate or gland-dotted. |
Peduncles | 5–40 mm, pubescent. |
Involucres | narrowly campanulate, 7–11 mm. |
Florets | 16–17; corollas cream, 6–7 mm. |
Phyllaries | 35–40 in 5–7 series, 3–5-striate, unequal, (glabrous, ± chartaceous) margins narrowly scarious (apices acute to acuminate); outer ovate, inner lanceolate. |
Heads | in dense, paniculiform arrays. |
Cypselae | 2–3 mm, pubescent; pappi of 18–24 white, barbellate bristles. |
2n | = 18. |
Brickellia baccharidea |
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Phenology | Flowering Oct–Apr. |
Habitat | Sandy to granitic soils, limestone slopes, granitic cliffs |
Elevation | 500–1600 m (1600–5200 ft) |
Distribution |
AZ; NM; TX
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Discussion | Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 21, p. 494. |
Parent taxa | Asteraceae > tribe Eupatorieae > Brickellia |
Sibling taxa | |
Name authority | A. Gray: Smithsonian Contr. Knowl. 3(5): 87. (1852) |
Web links |