Flora of North America species comparison

of 2d-year stems tan, glabrous.

of 2d-year stems grayish purple, glabrous.

5-9-foliolate;

petioles 2-8 cm.

3-9-foliolate;

petioles 0.1-0.5 cm.

blades thick and rigid;

surfaces abaxially smooth, shiny, adaxially dull, gray-green;

terminal leaflet stalked, blade 6.5-9.3 × 4-7 cm, 1.3-2.3 times as long as wide;

lateral leaflet blades ovate or lance-ovate, 4-6-veined from base, base truncate or weakly cordate, margins plane, toothed, with 2-7 teeth 3-8 mm tipped with spines to 1.4-4 × 0.3-0.6 mm, apex acuminate.

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.

absent.

absent.

racemose, dense, 70-150-flowered, 5-17 cm;

bracteoles ± corky, apex rounded to acute.

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

bracteoles membranous, apex acuminate.

anther filaments without distal pair of recurved lateral teeth.

dark blue, glaucous, oblong-ovoid, 9-12 mm, juicy, solid.

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

scales 11-13 mm, persistent.

scales 2-4 mm, deciduous.