Brickellia rusbyi |
Brickellia baccharidea |
|
---|---|---|
stinking brickellbush |
baccharis-leaf brickellia, baccharisleaf brickellbush, resinleaf brickellbush |
|
Habit | Perennials, 60–120 cm (bases woody). | Shrubs, 100–150 cm. |
Stems | branched, puberulent, gland-dotted. |
(ascending) branched, pubescent, sometimes glandular-pubescent. |
Leaves | alternate; petioles 10–50 mm; blades 3-nerved from bases, deltate or rhombic-ovate, 50–100 × 20–50 mm, bases acute to truncate, margins crenate or coarsely dentate, apices long-acuminate, abaxial faces sparsely villous, gland-dotted, adaxial faces glabrous or sparsely pubescent, often gland-dotted. |
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 | 4–6 mm, puberulent, sparsely gland-dotted. |
5–40 mm, pubescent. |
Involucres | cylindric to campanulate, 7–10 mm. |
narrowly campanulate, 7–11 mm. |
Florets | 13–20; corollas yellowish, 5.3–6.5 mm. |
16–17; corollas cream, 6–7 mm. |
Phyllaries | 22–26 in 4–7 series, 3–5-striate, unequal, margins scarious (apices obtuse to acute); outer ovate to lanceolate (often purple-tinged, glabrous or puberulent), inner linear to oblong (greenish, glabrous). |
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 paniculiform arrays. |
in dense, paniculiform arrays. |
Cypselae | 2–2.5 mm, sericeous; pappi of 26–32 white, barbellate bristles. |
2–3 mm, pubescent; pappi of 18–24 white, barbellate bristles. |
2n | = 18. |
= 18. |
Brickellia rusbyi |
Brickellia baccharidea |
|
Phenology | Flowering Aug–Oct. | Flowering Oct–Apr. |
Habitat | Rocky slopes, shaded areas | Sandy to granitic soils, limestone slopes, granitic cliffs |
Elevation | 1500–2500 m (4900–8200 ft) | 500–1600 m (1600–5200 ft) |
Distribution |
AZ; NM; Mexico
|
AZ; NM; TX
|
Discussion | Brickellia rusbyi has been considered ill-smelling. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 21, p. 506. | FNA vol. 21, p. 494. |
Parent taxa | Asteraceae > tribe Eupatorieae > Brickellia | Asteraceae > tribe Eupatorieae > Brickellia |
Sibling taxa | ||
Name authority | A. Gray: in A. Gray et al., Syn. Fl. N. Amer. 1(2): 106. (1884) | A. Gray: Smithsonian Contr. Knowl. 3(5): 87. (1852) |
Web links |