Ericameria nauseosa var. ceruminosa |
Ericameria nauseosa var. latisquamea |
|
---|---|---|
desert rabbitbrush, sharp bract rabbitbrush |
broadscale rabbitbrush |
|
Habit | Plants 50–70 cm. | Plants 130–200 cm. |
Stems | yellowish green, moderately leafy to nearly leafless, compact tomentose. |
white, leafy, loosely tomentose. |
Leaves | yellowish green; blades 1-nerved, filiform, 10–30 × 0.7–1 mm, faces tomentulose. |
whitish; blades 1-nerved, filiform, 15–45 × 1–2 mm, faces loosely tomentose. |
Involucres | 7–8.5 mm. |
7.5–10.5 mm. |
Corollas | 6–7.5 mm, tubes glabrous, lobes 1.5–2.5 mm, glabrous; style appendages shorter than stigmatic portions. |
7–9.5 mm, tubes glabrous or puberulent, lobes 0.6–1 mm, glabrous; style appendages equaling or shorter than stigmatic portions. |
Phyllaries | 16–26 (in vertical ranks), apices recurved, acuminate, abaxial faces tomentose to glabrate, glutinous. |
15–17, apices erect, obtuse, outer abaxial faces densely tomentulose, inner glabrous. |
Cypselae | hairy; pappi 4.5–6.7 mm. |
densely hairy; pappi 4.8–7.6 mm. |
2n | = 18. |
|
Ericameria nauseosa var. ceruminosa |
Ericameria nauseosa var. latisquamea |
|
Phenology | Flowering late summer–fall. | Flowering fall. |
Habitat | Gravelly arroyos | Dry streambeds and arroyos |
Elevation | 700–1700 m (2300–5600 ft) | 1200–2200 m (3900–7200 ft) |
Distribution |
CA |
AZ; NM; Mexico (Sonora) |
Discussion | Variety ceruminosa grows in the Mojave Desert. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 20, p. 65. | FNA vol. 20, p. 66. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Linosyris ceruminosus, Chrysothamnus nauseosus subsp. ceruminosus, Chrysothamnus nauseosus var. ceruminosus | Bigelowia graveolens var. latisquamea, Chrysothamnus nauseosus subsp. latisquameus |
Name authority | (Durand & Hilgard) G. L. Nesom & G. I. Baird: Phytologia 75: 85. (1993) | (A. Gray) G. L. Nesom & G. I. Baird: Phytologia 75: 86. (1993) |
Web links |
|