Brickellia hinckleyi

Standley

Publ. Field Mus. Nat. Hist., Bot. Ser. 22: 61. 1940.

EndemicConservation concern
Synonyms: Brickellia brachyphylla var. hinckleyi (Standley) Flyr
Treatment appears in FNA Volume 21. Treatment on page 501. Mentioned on page 491.
Revision as of 20:56, 27 May 2020 by imported>Volume Importer

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