Flora of North America species comparison

± erect, loosely cespitose, branched.

erect, branched.

basal and cauline, palmate;

stipules ovate-lanceolate, 0.5–2 cm, margins usually entire, sometimes lobed, apex acute to acuminate;

petiole 0.5–12 cm;

petiolules 1 mm;

leaflets 3, blades lanceolate or elliptic, 0.5–2 × 0.3–1.3 cm, base cuneate, veins prominent, margins serrate, apex acute, apiculate, surfaces glabrous.

palmate;

stipules ovate-oblong to lanceolate, 0.4–1.3 cm, sheathing proximally, margins entire or serrate, apex acuminate;

petiole 3–9 cm;

petiolules 0.5 mm;

leaflets 3, blades obovate to oblanceolate, 1.2–3 × 0.3–1.4 cm, base cuneate, veins fine, margins serrate, apex rounded or truncate, surfaces glabrous.

terminal or axillary, 15–30-flowered, ellipsoid or conic, 1.5–2 × 1–3 cm, rachis prolonged beyond flowers, undivided or forked, often bearing sterile flower buds distally;

involucres absent.

axillary or terminal, 5–15-flowered, ellipsoid, 1–1.8 × 1.3–1.5 cm;

involucres flattened, 3–4 mm, shallowly incised, lobes 5–8, elliptic, apex rounded to truncate and irregularly erose, not split.

2–13 cm, slightly twisted apically.

3.5–6 cm.

strongly reflexed in fruit, 0.5 mm;

bracteoles minute, lanceolate.

erect, 1 mm;

bracteoles broadly ovate, to 0.5 mm.

12–14 mm;

calyx pink to purple, campanulate, 3–3.5 mm, glabrous, veins 10 (5 sometimes faint), tube 1.5–1.7 mm, lobes subequal, triangular-subulate, orifice open;

corolla pink to deep purple, 12–14 mm, banner oblong, 12–14 × 4–5 mm, apex rounded or retuse.

7–11 mm;

calyx campanulate-tubular, 2.5–5 mm, glabrous, veins 5, tube 1–2.5 mm, lobes unequal, lanceolate-subulate, orifice open;

corolla reddish purple, 7–9 mm, inflated in fruit, banner oblong, 7–9 × 3–4 mm, apex rounded, retuse.

obliquely ellipsoid, 5 mm.

stipitate, ovate-oblong, 4 mm.

1 or 2, brown, often purple-mottled, flattened ovoid, 2–3 mm, smooth.

1 or 2, red-brown, ovoid-ellipsoid, 2 mm, smooth or papillate.

= 16.