Flora of North America species comparison

monomorphic, without short axillary shoots.

monomorphic, without short axillary shoots.

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

of 2d-year stems tan, glabrous.

9-21-foliolate;

petioles 2-11 cm.

5-9-foliolate;

petioles 2-8 cm.

blades thin and ± flexible;

surfaces abaxially rather dull, smooth, adaxially dull, somewhat glaucous;

terminal leaflet stalked, blade 2.9-8.4 × 1.2-4.8 cm, 1.8-3.2 times as long as wide;

lateral leaflet blades lance-ovate to ovate, 4-6-veined from base, base rounded to cordate, margins plane, toothed, each with 6-13 teeth 1-2(-3) mm tipped with spines to 1-2.4 × 0.1-0.2 mm, apex acute or broadly acuminate.

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.

absent.

absent.

racemose, dense, 30-70-flowered, 6-17 cm;

bracteoles membranous, apex acute, obtuse, or rounded.

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

bracteoles ± corky, apex rounded to acute.

anther filaments without distal pair of recurved lateral teeth.

blue, glaucous, oblong-ovoid or globose, 8-11 mm, juicy, solid.

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

scales (13-)20-44 mm, persistent.

scales 11-13 mm, persistent.

= 56.