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Shrubs , evergreen, (0.3-)0.5-2 m. Stems usually monomorphic, seldom with short axillary shoots. Bark of 2d-year stems brown or purple, glabrous. Bud scales 3-5 mm, deciduous. Spines absent. Leaves 5-7-foliolate; petioles 0.5-3 cm. Leaflet blades thick and rigid; surfaces abaxially dull, papillose, adaxially dull, glaucous; terminal leaflet stalked, rarely sessile in a few leaves, blades 2.2-8.8 × 1.8-6 cm, 1.2-2 times as long as wide; lateral leaflet blades elliptic to oblong or oblong-ovate, 1-3-veined from base, base obtuse or truncate, margins strongly crispate, toothed, each with 3-8 teeth 2-8 mm tipped with spines to 2-4.8 × 0.4-0.6 mm, apex rounded or obtuse. Inflorescences racemose, dense, 25-50-flowered, 3-7 cm; bracteoles membranous, apex rounded or obtuse. Flowers: anther filaments with distal pair of recurved lateral teeth. Berries dark blue, at least sometimes glaucous, oblong-ovoid, 6-7 mm, juicy, solid. 2 n = 28.


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© Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA

Source: Missouri Botanical Garden

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