Brickellia grandiflora |
Brickellia simplex |
|
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large flower brickelbush, large flower thoroughwort, large-flower brickellia, large-flower tassel-flower, tassel-flower brickellbush |
Sonoran brickellbush |
|
Habit | Perennials, 30–95 cm (taproots thickened). | Perennials, 40–60 cm (caudices woody). |
Stems | branched, puberulent. |
branched, pubescent. |
Leaves | opposite or alternate; petioles 10–70 mm; blades 3-nerved from bases, deltate-ovate, lance-ovate, or subcordate, 15–120 × 20–70 mm, bases acute, truncate, or subcordate, margins crenate, dentate, or serrate, apices attenuate, faces puberulent and gland-dotted. |
opposite or alternate; petioles 3–20 mm; blades 3-nerved from bases, deltate to lanceolate, 10–60 × 7–50 mm, bases cordate to truncate, margins crenate-dentate, apices acute, faces sparsely to densely pubescent, gland-dotted. |
Peduncles | 4–30 mm, pubescent. |
20–50 mm, glandular-pubescent. |
Involucres | cylindric or obconic, 7–12 mm. |
cylindric to broadly campanulate, 12–14 mm. |
Florets | mostly 20–40(–70); corollas pale yellow-green, 6.5–7.5 mm. |
± 60; corollas pale yellow, often purple-tinged, 9–10 mm. |
Phyllaries | 30–40 in 5–7 series, greenish, 4–5-striate, unequal, margins scarious; outer lance-ovate to lanceolate (pubescent, margins ciliate, apices long-acuminate), inner lanceolate to lance-linear (glabrous, apices acute to acuminate). |
40–60 in 5–6 series, greenish, 4–6-striate, unequal, margins narrowly scarious (apices acute to acuminate); outer narrowly lanceolate (glandular-pubescent), inner lanceolate (glabrous or tomentulose). |
Heads | (nodding in flower and fruit) in loose, corymbiform or paniculiform arrays. |
borne singly or in open, paniculiform arrays. |
Cypselae | 4–5 mm, hispidulous to hirtellous; pappi of 20–30 white, barbellate bristles. |
4–5 mm, hispidulous or glabrate; pappi of 32–36 white, barbellate bristles. |
2n | = 18. |
|
Brickellia grandiflora |
Brickellia simplex |
|
Phenology | Flowering Jul–Oct. | Flowering Aug–Oct. |
Habitat | Rocky hillsides, shaded forests, dry slopes, canyons | Oak woodlands, canyons, dry mountain slopes |
Elevation | 1200–3000 m (3900–9800 ft) | 1500–2700 m (4900–8900 ft) |
Distribution |
AR; AZ; CA; CO; ID; KS; MO; MT; NE; NM; NV; OR; TX; UT; WA; WY
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AZ; NM; Mexico
|
Source | FNA vol. 21, p. 500. | FNA vol. 21, p. 506. |
Parent taxa | Asteraceae > tribe Eupatorieae > Brickellia | Asteraceae > tribe Eupatorieae > Brickellia |
Sibling taxa | ||
Synonyms | Eupatorium grandiflorum | |
Name authority | (Hooker) Nuttall: Trans. Amer. Philos. Soc., n. s. 7: 287. (1840) | A. Gray: Smithsonian Contr. Knowl. 5(6): 73. (1853) |
Web links |
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