Ericameria nauseosa var. bernardina |
Ericameria nauseosa var. arenaria |
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Bernardina rabbitbrush, San Bernardino rubber rabbitbrush |
sand rabbitbrush |
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Habit | Plants 50–150 cm. | Plants 70–120 cm. |
Stems | yellowish green, becoming whitish, leafy, compactly tomentose. |
grayish green, moderately leafy, moderately compactly tomentose. |
Leaves | mostly greenish yellow; blades 1-nerved, linear, 30–50 × 1–2 mm, faces ± tomentose. |
grayish green; blades 1-nerved, linear, 40–75 × 0.8–1.1 mm, faces tomentose. |
Involucres | 10–14 mm. |
16–19 mm. |
Corollas | 10–12 mm, tubes puberulent, lobes 1.7–2.3 mm, glabrous; style appendages longer than stigmatic portions. |
12–14.2 mm, tubes glabrous, lobes 1.2–2 mm, glabrous; style appendages longer than stigmatic portions. |
Phyllaries | 13–20 (in vertical ranks), apices erect, acuminate, abaxial faces glabrous or tomentose. |
(19–)22–27 (in strongly vertical ranks), apices ± recurved, cuspidate-aristate, abaxial faces glabrous or glabrescent. |
Cypselae | densely sericeous; pappi 7–8 mm. |
hairy; pappi 9.6–12.7 mm. |
2n | = 18. |
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Ericameria nauseosa var. bernardina |
Ericameria nauseosa var. arenaria |
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Phenology | Flowering late summer–fall. | Flowering late summer–fall. |
Habitat | Open yellow-pine forests | Sandhills and sandstone cliffs |
Elevation | 1200–3000 m (3900–9800 ft) | 1500–2000 m (4900–6600 ft) |
Distribution |
CA; Mexico (Baja California) |
AZ; NM; UT |
Source | FNA vol. 20, p. 64. | FNA vol. 20, p. 64. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Chrysothamnus nauseosus var. bernardinus | Chrysothamnus nauseosus subsp. arenarius, Chrysothamnus nauseosus var. arenarius |
Name authority | (H. M. Hall) G. L. Nesom & G. I. Baird: Phytologia 75: 85. (1993) | (L. C. Anderson) G. L. Nesom & G. I. Baird: Phytologia 75: 85. (1993) |
Web links |
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