Crossosoma bigelovii

S. Watson

Proc. Amer. Acad. Arts 11: 122. 1876.

Common names: Rockflower
Illustrated
Synonyms: Crossosoma bigelovii var. glaucum (Small) Kearney & Peebles C. bigelovii var. parviflorum (B. L. Robinson & Fernald) K. C. Davis C. glaucum C. parviflorum
Treatment appears in FNA Volume 9. Treatment on page 12.
Revision as of 22:54, 5 November 2020 by imported>Volume Importer
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Shrubs, 0.7–2 m. Leaves mostly fasciculate on short shoots, 5–15 mm (–25 mm on long shoots). Pedicels short to long. Flowers: sepals 4–5 mm; petals 9–12(–15) mm. Follicles (1–)2–3(–4), (5–)7–15 mm. Seeds 4–8, 2–2.5 mm diam. 2n = 24.


Phenology: Flowering Jan–May.
Habitat: Dry rocky slopes and cliff faces, often in canyons, most commonly on igneous or volcanic substrates, mostly in the Sonoran and Mojave deserts
Elevation: 50–1700 m

Distribution

V9 14-distribution-map.jpg

Ariz., Calif., Nev., Mexico (Baja California, Chihuahua, Sonora).

Discussion

The name Crossosoma parviflorum was based on specimens from the north side of the Grand Canyon and Sonora, Mexico, and applied to plants with somewhat smaller flowers and fruits than those in most other populations. Further taxonomic research may determine that this constitutes a valid infrataxon; it has not been accepted for the present treatment. Although it is available through specialty nurseries, this species is seldom seen in southwestern gardens as a specimen plant and ornamental.

Selected References

None.

Lower Taxa

None.
... more about "Crossosoma bigelovii"
Charles T. Mason Jr.† +  and George Yatskievych +
S. Watson +
Rockflower +
Ariz. +, Calif. +, Nev. +, Mexico (Baja California +, Chihuahua +  and Sonora). +
50–1700 m +
Dry rocky slopes and cliff faces, often in canyons, most commonly on igneous or volcanic substrates, mostly in the Sonoran and Mojave deserts +
Flowering Jan–May. +
Proc. Amer. Acad. Arts +
Illustrated +
Crossosoma bigelovii var. glaucum +, C. bigelovii var. parviflorum +, C. glaucum +  and C. parviflorum +
Crossosoma bigelovii +
Crossosoma +
species +