Brickellia rusbyi |
Brickellia coulteri |
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stinking brickellbush |
Coulter's brickellbush |
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Habit | Perennials, 60–120 cm (bases woody). | Shrubs, 30–150 cm. | ||||
Stems | branched, puberulent, gland-dotted. |
much branched from bases, pubescent, often gland-dotted. |
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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. |
opposite; petioles 4–12 mm; blades 3-nerved from bases, broadly ovate to deltate, 10–60 × 10–30 mm, bases truncate, hastate, or subcordate, margins usually toothed (1–3 sets of sharp teeth near bases), rarely subentire, apices attenuate, faces minutely pubescent. |
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Peduncles | 4–6 mm, puberulent, sparsely gland-dotted. |
5–40 mm, pubescent and sometimes gland-dotted. |
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Involucres | cylindric to campanulate, 7–10 mm. |
cylindric to campanulate, 8–12 mm. |
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Florets | 13–20; corollas yellowish, 5.3–6.5 mm. |
13–25; corollas pale yellow-green, often purple-tinged, 7–8.2 mm. |
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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). |
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). |
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Heads | in paniculiform arrays. |
in loose, paniculiform arrays. |
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Cypselae | 2–2.5 mm, sericeous; pappi of 26–32 white, barbellate bristles. |
3–5 mm, hispidulous, strigose, or glandular-pubescent; pappi of 28–40 smooth or barbellulate bristles. |
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2n | = 18. |
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Brickellia rusbyi |
Brickellia coulteri |
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Phenology | Flowering Aug–Oct. | |||||
Habitat | Rocky slopes, shaded areas | |||||
Elevation | 1500–2500 m (4900–8200 ft) | |||||
Distribution |
AZ; NM; Mexico
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AZ; NM; TX; n Mexico
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Discussion | Brickellia rusbyi has been considered ill-smelling. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Varieties 3 (2 in the flora}. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 21, p. 506. | FNA vol. 21, p. 496. | ||||
Parent taxa | Asteraceae > tribe Eupatorieae > Brickellia | Asteraceae > tribe Eupatorieae > Brickellia | ||||
Sibling taxa | ||||||
Subordinate 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): 86. (1852) | ||||
Web links |