Flora of North America species comparison

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

of 2d-year stems purple, glabrous.

3-foliolate;

petioles 0.8-5.4 cm.

5-7-foliolate;

petioles 1.5-5 cm.

blades thick and rigid;

surfaces abaxially dull, papillose, adaxially dull, ± glaucous;

terminal leaflet sessile, blade 2.3-5.8 × 0.9-2 cm, 1.6-3.1 times as long as wide;

lateral leaflet blades narrowly lanceolate or narrowly elliptic, 1-veined from base, base acute or acuminate, rarely rounded-acute, margins plane, toothed or lobed, with 1-3 teeth or lobes 3-7 mm high tipped with spines to 1-2 × 0.2-0.3 mm, apex narrowly acute or acuminate.

blades thick and rigid;

surfaces abaxially dull, papillose, adaxially dull, ± glaucous;

terminal leaflet stalked, blade 4.4-5.5 × 3.1-4.6 cm, 1.1-1.4 times as long as wide;

lateral leaflet blades oblong or circular, 1-5-veined from base, base truncate or cordate, margins undulate or crispate, toothed, each with 9-15 teeth 1-3 mm tipped with spines to 1.4-2.4 × 0.2-0.4 mm, apex truncate or broadly rounded.

absent.

absent.

racemose, lax, 1-8-flowered, 0.5-3 cm;

bracteoles membranous, apex acuminate.

racemose, dense, 25-35-flowered, 3-6 cm;

bracteoles membranous, apex obtuse or rounded.

anther filaments without distal pair of recurved lateral teeth.

anther filaments distally with pair of recurved teeth: author had no data available.

red, sometimes glaucous, spheric, 6-11 mm, juicy, solid.

dark blue, glaucous, ovoid to elliptic, 7-9 mm, juicy, solid.

scales 2-3 mm, deciduous.

scales 3-6 mm, deciduous.

= 28.