Flora of North America species comparison

erect or ascending, many stems from ground, much-branched distally, stems angled, 5–20 dm.

erect, several from rootstock, sparsely branched distally, 5–15 dm.

6–11 cm;

stipules narrowly triangular, attenuate, 5–6 mm;

petiole 10–20 mm;

stipels 0.5–1.5 mm;

petiolules 0.5–1.5 mm;

leaflets 9–17, opposite, blades elliptic or oblanceolate, 15–20(–40) × 5–10(–15) mm, base cuneate, apex acute, mucronate, surfaces strigose, abaxially sometimes glabrate.

8.5–10.5 cm;

stipules sometimes clusters of hairs, 0.5–2 mm;

petiole 1–1.5 cm;

stipels 0.5–1 mm;

petiolules 0.5–1 mm;

leaflets 7–15, opposite, blades obovate, narrowly or broadly oblanceolate, or elliptic, 8–16 × 4–8 mm, base cuneate, apex acute to obtuse, apiculate, surfaces densely pubescent.

20–30+-flowered, dense, 3.5–5.5 cm.

8–30+-flowered, lax, 5–12 cm.

0.5 cm.

0.8–1.2 cm.

1 mm.

1 mm.

5–6 mm;

calyx 1.5–2 mm, lobes deltate to lanceolate;

corolla greenish yellow, orange, or purple-pink.

6–8 mm;

calyx 1.5–2 mm, lobes narrowly triangular;

corolla reddish.

dark brown, reflexed, cylindric, strongly curved, 15–20 mm, leathery, base not bulbous or reddish, strigose to glabrate.

brown, divergent or reflexed, cylindric, straight or slightly curved to falcate, 18–25 mm, leathery, base bulbous and reddish, cinereous-pubescent.

4–6, reddish brown, cuboid.

4–6, brown, cuboid.

= 16, 32.

= 16.