Flora of North America species comparison

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

of 2d-year stems light brown or grayish purple, 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(-11)-foliolate;

petioles 0.2-0.8(-3) cm.

blades thick and rigid;

surfaces abaxially dull, papillose, adaxially dull, glaucous;

terminal leaflet stalked in most or all leaves, blade 1-2.6(-4) × 0.7-1.8(-2.5) cm, 1-2.5 times as long as wide;

lateral leaflet blades elliptic to ovate or orbiculate, 1-3-veined from base, base obtuse or truncate, margins strongly crispate, toothed or lobed, with 2-5 teeth 2-6 mm high tipped with spines to 0.8-2.2 × 0.2-0.3 mm, apex obtuse to acuminate.

present, simple or 3-fid.

absent.

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

bracteoles membranous, apex acute.

racemose, lax, 3-6-flowered, 2.5-6.5 cm;

bracteoles membranous, apex acuminate.

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.

yellow or red to brown, ± glaucous, spheric, 12-18 mm, dry, inflated.

scales 1-2 mm, deciduous.

scales 2-4 mm, deciduous.