Flora of North America species comparison

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

of 2d-year stems grayish purple, glabrous.

blade oblanceolate or sometimes narrowly elliptic, 1-veined from base, 1.8-7.5 × 0.8-3.3 cm, thin and flexible, base long-attenuate, margins plane, toothed, each with 3-12 teeth 0-1 mm high tipped with bristles to 0.2-1.2 × 0.1-0.15 mm, apex rounded or rounded-obtuse;

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

3-9-foliolate;

petioles 0.1-0.5 cm.

blades thick and rigid;

surfaces abaxially dull, papillose, adaxially dull, glaucous;

terminal leaflet stalked in most leaves, blade 1.5-3.8 × 0.5-1.1 cm, 2-5 times as long as wide;

lateral leaflet blades oblong-ovate to ovate or lanceolate, 1(-3)-veined from base, base acute to obtuse, rarely subtruncate, margins undulate or crispate, toothed or lobed, with 2-4 teeth 1-4 mm high tipped with spines to 1.2-2 × 0.2-0.3 mm, apex narrowly acute or acuminate.

present, simple or 3(-7)-fid.

absent.

racemose, lax, 3-12-flowered, 2-5.5 cm;

bracteoles membranous, apex acuminate.

racemose, lax, 3-7-flowered, 1.5–4.5 cm;

bracteoles membranous, apex acuminate.

anther filaments without distal pair of recurved lateral teeth.

anther filaments without distal pair of recurved lateral teeth.

red, oblong-ellipsoid, 10 mm, juicy, solid.

purplish red, glaucous, spheric or short-ellipsoid, 5-8 mm, juicy, solid.

scales 1-1.5 mm, deciduous.

scales 2-4 mm, deciduous.

= 28.