Flora of North America species comparison

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

erect to spreading or ascending-spreading, branched, wiry, 3–7 dm.

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.

1.5–3.5 cm;

stipules subulate, 3–5 mm;

petiole 0.5–1 cm;

stipels absent;

petiolules 1 mm;

leaflets 1 (proximal leaves) or 3 (distal leaves), opposite, blades broadly to narrowly elliptic, 5–45 × 3–15 mm, terminal leaflet 2–3 times larger than laterals, base cuneate, apex acute, short-mucronate, surfaces sericeous, hairs spreading, one arm much longer than other.

8–30+-flowered, lax, 5–12 cm.

1–3-flowered, lax, 1–2 cm.

0.8–1.2 cm.

filiform, 0.5–1.5 cm.

1 mm.

1.5 mm.

6–8 mm;

calyx 1.5–2 mm, lobes narrowly triangular;

corolla reddish.

5 mm;

calyx 2–3 mm, lobes linear-subulate;

corolla salmon reddish.

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

brown, spreading to strongly ascending, cylindric, straight, 15–22 mm, leathery, hirsute, glandular.

4–6, brown, cuboid.

3–6, yellowish brown, cuboid.

= 16.

= 32.