Flora of North America species comparison

of 2d-year stems purple or brown, glabrous.

of 2d-year stems gray-brown or purplish, glabrous.

blade obovate to spatulate, 1-veined from base, (0.5-)1.2-2.4 × 0.3-1(-1.8) cm, thin and flexible, base long-attenuate, margins plane, entire, apex rounded or obtuse;

surfaces abaxially dull, smooth, adaxially dull, scarcely glaucous.

5-9-foliolate;

petioles 1-6 cm.

blades thin and flexible or rather rigid;

surfaces abaxially glossy, smooth, adaxially glossy, green;

terminal leaflet stalked, blade 5.1-8.7(-14.5) × 2.4-4.5(-5.5) cm, 1.7-2.5 times as long as wide;

lateral leaflet blades lance-ovate to lance-elliptic, 1(-3)-veined from base, base obtuse or truncate, rarely weakly cordate, margins plane or undulate, toothed, each with 5-21 teeth 0-2 mm tipped with spines to 0.8-2.2 × 0.2-0.3 mm, apex acute or sometimes obtuse or rounded.

present, simple or 3-fid.

absent.

umbellate, 1-5-flowered, 1-1.5 cm;

bracteoles membranous, apex acute.

racemose, dense, 30-60-flowered, 3-9(-11) cm;

bracteoles membranous, apex rounded or obtuse, sometimes apiculate.

anther filaments without distal pair of recurved lateral teeth.

anther filaments with distal pair of recurved lateral teeth.

red, ellipsoid or spheric, (7-)9-10 mm, juicy, solid.

blue, glaucous, oblong-ovoid, 6-10 mm, juicy, solid.

scales 1-2 mm, deciduous.

scales 4-8(-14) mm, deciduous.

= 28, 56.