Flora of North America species comparison

(2–)4–25 cm;

stipules persistent, connate opposite petiole at first, membranous becoming papery, light tan or grayish, pilose, silky, or glabrate;

leaflets (3–)7–19, blades linear-lanceolate, lanceolate, ovate to oblong, linear, linear-oblong, or elliptic, 5–40 × 2–8 mm, apex acute, surfaces canescent.

0.5–6 cm;

stipules membranous, stramineous, 7–13 mm, glabrous, margins ciliate;

leaflets (5–)9–13, opposite, blades linear-lanceolate to linear, (4–)5–8.5(–12) mm, usually involute and falcate, apex acute, surfaces greenish, sparsely hirsute.

(6–)8–45-flowered.

1–3-flowered, subcapitate.

erect, 4–25(–35) cm, usually surpassing leaves, axis 3–16 cm in fruit, strigose;

bract lanceolate to ovate-acuminate, strigose to pilose.

0.5–5 cm, pubescent;

bract ovate to lanceolate, pilose.

usually pink-purple, rarely white, sometimes white and purple in populations, (5–)15–25 mm, wing petals 3.5–9 mm.

often purple, sometimes white, 12–15(–19) mm.

cylindric, (6.5–)7–10 mm, silky-strigose or -pilose, rarely with some dark or some loose hairs;

tube purplish, (4.5–)5–8 mm, lobes 1.2–4 mm.

campanulate, pilose;

tube 5–7 mm, lobes (1–)2–3 mm.

erect or ascending, sessile or short-stipitate, cylindric or lanceolate-acuminate (in outline), 7–25 × 2.5–6 mm, bilocular, strigose to strigulose.

spreading, stipitate, stipe 1.5–3 mm, ovoid-ellipsoid or bladdery-inflated, 15–25(–38) × 10–17(–20) mm, subunilocular, thin-papery, strigose-pilosulous.