Brickellia coulteri |
Brickellia lemmonii |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|
Coulter's brickellbush |
Lemmon's brickellbush |
|||||||||
Habit | Shrubs, 30–150 cm. | Perennials, 30–50 cm (caudices woody). | ||||||||
Stems | much branched from bases, pubescent, often gland-dotted. |
branched, pubescent, gland-dotted. |
||||||||
Leaves | 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. |
mostly alternate, sometimes opposite; petioles 0–5 mm; blades 3-nerved from bases (venation raised, reticulate), elliptic to lanceolate or ovate to subdeltate, 20–70 × 7–20 mm, bases ± cuneate, margins crenate to serrate, apices acute, faces glandular-pubescent. |
||||||||
Peduncles | 5–40 mm, pubescent and sometimes gland-dotted. |
2–15 mm, tomentose, often gland-dotted. |
||||||||
Involucres | cylindric to campanulate, 8–12 mm. |
narrowly cylindric, 10–13 mm. |
||||||||
Florets | 13–25; corollas pale yellow-green, often purple-tinged, 7–8.2 mm. |
9–24; corollas pale yellow-green, 6–8.2 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). |
18–20 in 3–4(–5) series, green or purplish, 5–9-striate, unequal, margins scarious (apices acute, attenuate, obtuse, or nearly rounded); outer ovate (lengths evenly grading to inner, margins ciliate, faces pubescent, often gland-dotted), inner narrowly lanceolate to linear-oblong (faces glabrous). |
||||||||
Heads | in loose, paniculiform arrays. |
in paniculiform arrays. |
||||||||
Cypselae | 3–5 mm, hispidulous, strigose, or glandular-pubescent; pappi of 28–40 smooth or barbellulate bristles. |
2.5–4 mm, densely pubescent; pappi of 32–43 white, mostly barbellate, sometimes subplumose, bristles. |
||||||||
Brickellia coulteri |
Brickellia lemmonii |
|||||||||
Distribution |
AZ; NM; TX; n Mexico
|
AZ; NM; TX; Mexico
|
||||||||
Discussion | Varieties 3 (2 in the flora}. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Varieties 4 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
||||||||
Key |
|
|
||||||||
Source | FNA vol. 21, p. 496. | FNA vol. 21, p. 502. | ||||||||
Parent taxa | Asteraceae > tribe Eupatorieae > Brickellia | Asteraceae > tribe Eupatorieae > Brickellia | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | Coleosanthus lemmonii | |||||||||
Name authority | A. Gray: Smithsonian Contr. Knowl. 3(5): 86. (1852) | A. Gray: Proc. Amer. Acad. Arts 17: 206. (1882) | ||||||||
Web links |