Flora of North America species comparison

with straight bole, young growth white-puberulent to tomentose, resting buds present, ferruginous or yellowish.

stipules early caducous, 5–6 mm, strigulose;

petiole 4–8 cm, eglandular, strigulose;

pinnae 4.5–9.5(–18) cm, with gland between each pair;

leaflet blades oblique-oblong to obovate, 15–35(–45) × 9–20 mm, base acute, apex rounded, mucronate, venation brochidodromous, main vein central;

terminal pinna blades rhombic-elliptic, to 55 × 35 mm, apex rounded or acute;

nectaries between each pair of pinnae and leaflets.

alternate, even-bipinnate, not sensitive to touch;

stipules present, not spinescent;

rachis and pinnae with extrafloral nectaries; petiolate;

pinnae 6–10 pairs, opposite, terminal pair heteromorphic;

leaflets 12–24, opposite, blade margins entire, surfaces slightly pubescent abaxially, glabrous adaxially.

terminal or axillary, densely strigulose;

bracts 3 or 4, deltate, (5–)7 mm, densely strigulose;

bract 5 mm, clavate, strigulose.

12–25-flowered, axillary or terminal, umbels [corymbs];

bracts present.

5–7 cm, densely strigulose.

peripheral flowers pedicellate, pedicels 2–3 mm, strigulose;

calyx 6 mm, densely strigulose;

corolla campanulate, 10–12 mm;

stamens white proximally, pink distally, staminal tube to 8 mm, ovary 4 mm;

central flowers: calyx 10 mm, lobes 8;

corolla 13–15 mm, lobes 5;

staminal tube 12 mm, ovary 4 mm.

mimosoid, actinomorphic, dimorphic, 7 or 8-merous, peripheral flowers smaller than central;

calyx campanulate, lobes 5–8, calyx and corolla connate, valvate;

corolla white and pink;

stamens 40+, connate into a tube;

anthers dorsifixed, eglandular.

legumes, sessile, glossy red-brown, turgid, straight or slightly curved, oblong, indehiscent, fleshy, pulpy, glabrescent, margins thickened;

exocarp separating from mesocarp when old, endocarp woody with septae between seeds.

15–20 × 1.5–2.3 cm, base rounded, margins entire, apex rounded with slightly curved beak to 8 mm, valves leathery, smooth or slightly rough.

8–20, elliptic, strongly biconvex;

pleurogram present, aril and endosperm absent;

cotyledons large, radicle curved.

= 13.