Chrysothamnus greenei

(A. Gray) Greene

Erythea 3: 94. 1895.

Common names: Greene’s rabbitbrush
Basionym: Bigelowia greenei A. Gray Proc. Amer. Acad. Arts 11: 75. 1876 (as Bigelovia)
Treatment appears in FNA Volume 20. Treatment on page 189. Mentioned on page 188.

Shrubs, 10–50 cm; with woody, moderately branched caudices, bark light gray, flaky to fibrous with age. Stems ascending, green becoming tan, glabrous, resinous. Leaves ascending to spreading; sessile; blades with faint midnerves, linear-filiform, 10–40 × 0.5–2 mm, flat or sulcate, sometimes twisted, margins glabrous or hirtellous, apices acute to apiculate, faces glabrous. Heads in densely cymiform arrays (4 cm wide), distal leaves reaching into but not overtopping arrays. Involucres cylindric to turbinate, 5–8 × 1.5–2.5 mm. Phyllaries 15–20 in 3–4 series, often in vertical ranks or spirals, mostly tan, ± greenish apically, midveins rarely visible, ovate or oblong to elliptic, 1.5–5 × 0.8–1.4 mm, unequal, mostly chartaceous, sometimes ± keeled, apices acuminate to cuspidate (cusp often recurved or falcate), faces glabrous or with a few long, crooked hairs proximally and near margins, resinous. Disc florets 4–5; corollas 3.7–5.5 mm, lobes 0.8–1.5 mm; style branches 2–2.4 mm (exserted beyond spreading corolla lobes), appendages 0.5–0.8 mm (shorter than stigmatic portion). Cypselae reddish brown, turbinate, 3–4 mm, faces densely hairy; pappi tan, 3.7–5 mm. 2n = 18.

Phenology: Flowering summer–fall.
Habitat: Sandy washes, dry open places in desert
Elevation: 1300–2000 m



Ariz., Calif., Colo., Nev., N.Mex., Utah, Wyo.


Selected References


Lower Taxa

... more about "Chrysothamnus greenei"
Lowell E. Urbatsch +, Roland P. Roberts +  and Kurt M. Neubig +
(A. Gray) Greene +
Bigelowia greenei +
Greene’s rabbitbrush +
Ariz. +, Calif. +, Colo. +, Nev. +, N.Mex. +, Utah +  and Wyo. +
1300–2000 m +
Sandy washes, dry open places in desert +
Flowering summer–fall. +
Illustrated +  and Endemic +
Vanclevea +
Chrysothamnus greenei +
Chrysothamnus +
species +