Cercis canadensis |
Cercis occidentalis |
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eastern redbud, redbud |
western redbud |
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Habit | Shrubs or trees. | Shrubs or small trees. | ||||||||
Stems | gray-brown to red-brown, twigs glabrous or tomentose. |
gray-brown, twigs glabrous. |
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Leaves | petiole 10–50 mm, glabrous or hairy; blade dull to dark green, membranous, subcoriaceous, or coriaceous, thickened (0.15–0.3 mm) or thin (0.05–0.25 mm), blades cordate, suborbiculate, orbiculate, or reniform, 24–110 ×20–116 mm, base nearly truncate to cordate, margins flat or sinuate, veins 5–9, palmate, prominent, apex obtuse to acuminate, sometimes retuse, surfaces glabrous or hairy abaxially, sometimes restricted to veins or vein axils, glabrous adaxially, sometimes glossy. |
petiole 8.5–35 mm, glabrous; blade dull green, subcoriaceous, thin (0.05–0.25 mm), blades orbiculate to reniform, 29–69.5 × 43–93 mm, base cordate, sinus 5–19 mm deep, margins flat, apex emarginate to retuse, surfaces glabrous, sometimes hairy on veins or in vein axils abaxially. |
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Pedicels | glabrous or hairy. |
glabrous. |
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Flowers | calyx 5–7.6 mm wide; petals usually pink, rarely white, nectar guides magenta, banner 4.4–6.5 × 3–5.8 mm, wings 4.5–7.1 ×3.2–4.8 mm, keel 6.5–9.5 × 4.3–7 mm. |
calyx 6.4–9.2 mm wide; petals pink, nectar guides magenta, banner 4.7–7.1 × 3.4–5.3 mm, wings 4.7–6.5 × 3.5–5.4 mm, keel 6.5–10.2 × 5.8–7.5 mm. |
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Legumes | dull brown, magenta, or red-brown, 48–109 × 7–21 mm, winged on abaxial suture, sometimes glossy, waxy, surfaces glabrous or hairy. |
red-brown to brown, 49–94 × 9–24 mm. |
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2n | = 14. |
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Cercis canadensis |
Cercis occidentalis |
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Phenology | Flowering Feb–Apr. | |||||||||
Habitat | Dry, shrubby slopes, canyons, stream banks, chaparral, foothill woodlands, yellow-pine forests. | |||||||||
Elevation | 0–3000 m. (0–9800 ft.) | |||||||||
Distribution |
North America; n Mexico
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CA; OR; Mexico (Baja California)
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Discussion | Subspecies 3 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Cercis occidentalis ranges widely in California, but in Oregon it is found only in Jackson County. Morphological trends of reduced leaf size and broader and shorter fruits were recognized in one population of Cercis occidentalis found in the Laguna Mountains east of San Diego (J. A. Ballenger 1992). This area warrants further collections and assessment of both flowering and fruiting specimens. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 11. | FNA vol. 11. | ||||||||
Parent taxa | Fabaceae > subfam. Cercidoideae > Cercis | Fabaceae > subfam. Cercidoideae > Cercis | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | Siliquastrum canadense | C. californica, C. latissima, C. nephrophylla, Siliquastrum occidentale | ||||||||
Name authority | Linnaeus: Sp. Pl. 1: 374. (1753) | Torrey ex A. Gray: Boston J. Nat. Hist. 6: 177. (1850) | ||||||||
Web links |