Brickellia venosa

Perennials, 60–80 cm (caudices woody). Stems branched, pubescent, glanddotted. Leaves opposite; petioles 0–1 mm; blades 3-nerved from bases, oblong to linear, 20–60 × 2–10 mm, bases cuneate, margins entire or dentate, apices obtuse, faces pubescent, glanddotted. Heads in open, paniculiform arrays or borne singly (often terminal on lateral branches). Peduncles (20–) 30–150 mm, puberulent, glanddotted. Involucres cylindric to campanulate, 9–10 mm. Phyllaries 25–35 in 6–9 series, greenish, often purple-tinged, 3–9-striate, unequal, margins scarious (ciliate); outer broadly ovate to orbiculate (glandular-pubescent, apices acute to cuspidate), inner lanceolate to linear-lanceolate (glabrous, apices acute to mucronate). Florets 18–25; corollas pale-yellow, often purple-tinged, 5.5–7 mm. Cypselae 3–3.5 mm, pubescent to velutinous; pappi of 30–40 white, barbellate bristles. 2n = 18, 18 + 1.

Phenology: Flowering Aug–Oct.
Habitat: Dry hills, canyon walls, mesas, limestone outcrops
Elevation: 1300–1800 m

Ariz., N.Mex., Mexico

Discussion

Selected References

None.

Lower Taxa