Difference between revisions of "Brickellia hinckleyi"
Publ. Field Mus. Nat. Hist., Bot. Ser. 22: 61. 1940.
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|tribe=Asteraceae tribe Eupatorieae | |tribe=Asteraceae tribe Eupatorieae | ||
|genus=Brickellia | |genus=Brickellia | ||
Revision as of 18:46, 24 September 2019
Perennials, 20–90 cm. Stems branched, coarsely scabrous. Leaves alternate to subopposite; petioles 1–5 mm; blades 3-nerved from bases, lanceolate to lance-ovate, 20–40 × 7–20 mm, bases rounded to broadly cuneate, margins entire or serrate, apices acute to acuminate, faces sparsely pubescent, stipitate-glandular. Heads in open, racemose or paniculiform arrays. Peduncles 5–45 mm, pubescent, stipitate-glandular. Involucres cylindric to campanulate, 7–11 mm. Phyllaries 16–20 in 4–5 series, greenish, often purple-tinged, 4–8-striate, unequal, margins narrowly scarious, often ciliate (apices acute to long-attenuate); outer lance-ovate (pubescent), inner narrowly lanceolate (glabrous). Florets 11–22; corollas pale yellow or cream, 4.7–6 mm. Cypselae 4–5 mm, silvery-setulose. Pappi of 25–34 white, plumose bristles.
Discussion
Varieties 2 (2 in flora).
Selected References
None.
Key
| 1 | Stem leaves: petioles 1–5 mm, blades relatively thin, (20–)25–45 mm, faces sparsely pubescent, stipitate-glandular | Brickellia hinckleyi var. hinckleyi |
| 1 | Stem leaves: petioles 0–1 mm, blades relatively thick, (15–)17–22(–25) mm, faces scabrous, gland-dotted | Brickellia hinckleyi var. terlinguensis |