Flora of North America species comparison

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

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

5-9(-11)-foliolate;

petioles 0.2-0.8(-3) cm.

5-9-foliolate;

petioles 1-6 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.

blades rather thick and ± rigid;

surfaces abaxially dull, papillose, adaxially glossy, green;

terminal leaflet stalked, blade 3.6-9.5 × 2-5.2 cm, 1.3-2.1 times as long as wide;

lateral leaflet blades lance-elliptic to elliptic-ovate or narrowly oblong, 1(-3)-veined from base, base rounded to obtuse or truncate, margins undulate, toothed, each with 6-12 teeth 1-4 mm, tipped with spines to 1.6-2.8 × 0.2-0.3 mm, apex acute to rounded-obtuse.

absent.

absent.

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

bracteoles membranous, apex acuminate.

racemose, dense, 25-60-flowered, 3-10 cm;

bracteoles membranous, apex obtuse or rounded.

anther filaments with distal pair of recurved lateral teeth.

anther filaments with distal pair of recurved lateral teeth.

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

dark blue and glaucous, oblong-ovoid, 7-10 mm, juicy, solid.

scales 2-4 mm, deciduous.

scales 3-8 mm, deciduous.

= 28.