Flora of North America species comparison

5–20 cm diam.;

bark purplish brown or gray-brown, peeling irregularly;

young branches purplish brown and densely puberulous, becoming grayish purple or grayish brown and glabrous at maturity; flowering shoots producing spurs, (5–)10–20(–35) mm.

purplish brown, ovoid, 5–7 mm, scale margins sparsely pubescent.

convolute in bud;

isomorphic;

stipules deciduous, lanceolate, 4–5 mm, apex acuminate;

petiole 10–50 mm, tomentose;

blade elliptic or ovate, (3.5–)5–9.5(–11) × (2–)4–5(–8) cm, base broadly cuneate, margins unlobed, acutely serrate or serrulate, sometimes doubly serrate, apex acuminate or acute, sometimes cuspidate, abaxial surface glabrous, adaxial puberulent or subglabrous.

umbel-like;

peduncles 0–2 mm;

bracteoles deciduous, rare, ± middle of pedicel, filiform, 3–4 mm.

20–35 mm, puberulous.

(30–)40–50 mm diam.;

hypanthium puberulent;

sepals triangular-lanceolate or lanceolate, 7–9 mm, longer than tube, apex acuminate, surfaces puberulent;

petals white, obovate or elliptic, 25–30 mm, claws 1–2 mm, margins entire, apex rounded;

stamens ca. 20, 8–10 mm, anthers yellow before dehiscence;

styles 4 or 5, basally connate 1/3 length, 9–11 mm, longer than stamens, proximally tomentose.

yellow to dark red, ovoid or oblong, 20–25(–34) mm diam., cores enclosed at apex;

sepals persistent, reflexed (erect), raised, swollen at base;

sclereids sparse surrounding core.

dark brown.

= 34, 51.