Berberis wilcoxii |
Berberis amplectens |
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Wilcox's barberry, Wilcox's hollygrape |
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Habit | Shrubs, evergreen, 0.3-2 m. Stems ± monomorphic, seldom with short axillary shoots. | Shrubs, evergreen, 0.2-1.2 m. Stems monomorphic, without short axillary shoots. |
Bark | of 2d-year stems purple or brown, glabrous. |
of 2d-year stems purple, glabrous. |
Leaves | 5-9-foliolate; petioles 1-5 cm. |
5-7-foliolate; petioles 1.5-5 cm. |
Leaflet | blades thick and rigid; surfaces abaxially dull, papillose, adaxially glossy, green; terminal leaflet stalked, blade 2.6-6.6 × 1.7-4.4 cm, 1-2.5 times as long as wide; lateral leaflet blades oblong to ovate or elliptic, 1-3-veined from base, base obtuse to rounded or truncate, margins plane to crispate, toothed, each with 3-5 teeth 1-5 mm tipped with spines to 1.2-3.8 × 0.2-0.6 mm, apex acute to rounded. |
blades thick and rigid; surfaces abaxially dull, papillose, adaxially dull, ± glaucous; terminal leaflet stalked, blade 4.4-5.5 × 3.1-4.6 cm, 1.1-1.4 times as long as wide; lateral leaflet blades oblong or circular, 1-5-veined from base, base truncate or cordate, margins undulate or crispate, toothed, each with 9-15 teeth 1-3 mm tipped with spines to 1.4-2.4 × 0.2-0.4 mm, apex truncate or broadly rounded. |
Spines | absent. |
absent. |
Inflorescences | racemose, dense, 30-50-flowered, 2-7 cm; bracteoles membranous, apex rounded or obtuse. |
racemose, dense, 25-35-flowered, 3-6 cm; bracteoles membranous, apex obtuse or rounded. |
Flowers | anther filaments with distal pair of recurved lateral teeth. |
anther filaments distally with pair of recurved teeth: author had no data available. |
Berries | blue, glaucous, oblong-ovoid, 6-11 mm, juicy, solid. |
dark blue, glaucous, ovoid to elliptic, 7-9 mm, juicy, solid. |
Bud | scales 2-6 mm, deciduous. |
scales 3-6 mm, deciduous. |
2n | = 28. |
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Berberis wilcoxii |
Berberis amplectens |
|
Phenology | Flowering spring (Apr–May). | Flowering spring (Apr–May). |
Habitat | Slopes and canyons | Rocky slopes in chaparral and open forest |
Elevation | 1500-2500 m (4900-8200 ft) | 900-1900 m (3000-6200 ft) |
Distribution |
AZ; NM; Mexico (Sonora)
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CA |
Discussion | Berberis wilcoxii has not been tested for resistance to infection by Puccinia graminis. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Berberis amplectens is endemic to the Peninsular Ranges of southern California. It is resistant to infection by Puccinia graminis. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | Berberidaceae > Berberis | Berberidaceae > Berberis |
Sibling taxa | ||
Synonyms | Mahonia amplectens | |
Name authority | Kearney: Trans. New York Acad. Sci. 14: 29. (1894) | (Eastwood) L. C. Wheeler: Rhodora 39: 376. (1937) |
Web links |