Flora of North America species comparison

(12–)20–30(–40) cm diam.;

bark gray to reddish brown, smooth when young, scaly and deeply fissured at maturity;

young branches reddish, puberulent when young, becoming reddish brown or gray and glabrous;

lateral flowering shoots becoming spurs, 10–30(–50) mm.

to 30 cm diam.;

bark dark gray or dark brown, smooth or rough;

young branches dark green and puberulous, becoming purplish or purplish brown and glabrous at maturity; flowering shoots developing as spurs, 5–20(–40) mm.

red-brown, ovoid, 1.5–4 mm, scale margins ciliate.

dark purple, ovoid, 3–4(–5) mm, scale margins sparsely ciliate.

conduplicate in bud;

isomorphic;

stipules deciduous, narrowly lanceolate, 1–5 mm, apex acuminate;

petiole 10–30 mm, tomentose, glabrescent;

blade ovate, sometimes oval, elliptic, or lanceolate, 3–9(–11) × 1–4 cm, base rounded to cuneate, margins unlobed or 3-lobed, serrate to doubly serrate, sometimes serrulate, apex acute or acuminate, abaxial surface glabrous, adaxial puberulent.

convolute in bud;

isomorphic;

stipules deciduous, linear-lanceolate, 5–6 mm, apex acuminate;

petiole 10–30 mm, sparsely pubescent when young, glabrescent;

blade ovate or ovate-oblong, 5–10 × 2.4–4 cm, base broadly cuneate, rarely rounded, margins unlobed, sharply serrulate, apex acuminate, surfaces sparsely puberulent when young, becoming glabrous.

corymblike;

peduncles absent;

bracts absent;

bracteoles sometimes persistent, filiform, 1–4 mm.

umbel-like;

peduncles absent;

bracteoles rarely persistent, lanceolate, 2 mm.

15–40 mm, villous or glabrous.

30–40 mm, glabrous or slightly villous.

15–20 mm diam.;

hypanthium glabrous or tomentose;

sepals triangular, 3–6 mm, shorter than tube, apex apiculate, abaxial surface glabrous, adaxial hoary-tomentose;

petals white, sometimes pink, orbiculate to obovate, (6–)10–15 mm, claws 1.5–2 mm, margins erose or undulate, apex rounded;

stamens ca. 20, 4–6 mm, anthers white before dehiscence;

styles 3(or 4), connate in proximal 1/3, 6–7 mm, longer than stamens, glabrous.

35–40 mm diam.;

hypanthium constricted distal to ovaries, glabrous or sparsely villous;

sepals triangular-ovate, 4–5 mm, equal to or shorter than tube, apex acute or acuminate, abaxial surface glabrous, adaxial hairy;

petals white, sometimes pink-white, obovate, 15 mm, claws 1 mm, margins crenulate, apex rounded;

stamens 20, 6–8 mm, anthers white before dehiscence;

styles 3(or 4), basally connate to 1/2 length, 7–9 mm, slightly longer than stamens, proximally tomentose.

yellow to purplish red, oblong, sometimes ovoid or obovoid, 6–10(–13) mm diam., cores enclosed at apex;

sepals deciduous, sometimes tardily;

sclereids abundant surrounding core.

greenish yellow with red blush, ellipsoid or subglobose, 10 mm diam., cores enclosed at apex;

sepals deciduous;

sclereids sparse to moderate surrounding core.

reddish brown.

brown.

= 34.

= 51, 68.