Flora of North America species comparison

1–3+, erect or divergent, straight or geniculate;

bark grayish, thin, smooth, becoming slightly fissured; long and short shoots present, leafy;

thorns present (commonly on short shoots); glabrous or tomentose.

young twigs gray-hairy, glabrescent later.

persistent or late-deciduous, cauline, fascicled on short shoots, simple;

stipules caducous, free, lanceolate, membranous, margins remotely serrate, glabrous or tomentose;

petiole present;

blade obovate, ovate, oblong-obovate, oblong, or elliptic to lanceolate or oblanceolate, 1–7 cm, leathery, margins flat or slightly revolute, serrulate, crenulate, or entire, venation pinnate, surfaces glabrous or sparsely hairy to densely tomentose when young, often glabrescent later.

stipules 4–8 mm;

petiole 2–5 mm;

blade elliptic or ovate to lanceolate or oblanceolate, 2–4 × 0.7–1.5 cm, base cuneate, margins finely crenulate-serrulate, apex acute, rarely obtuse, abaxial surface slightly hairy when young, glabrescent, adaxial glabrous.

terminal, 6–40-flowered, flat-topped panicles, glabrous or tomentose;

bracts present, caducous, lanceolate;

bracteoles present.

3–4 cm diam.;

bracteoles in distal axils 4–10 × 3–4 mm.

present.

3–10 mm, with coarse pale hairs.

perianth and androecium epigynous, 3–10(–12) mm diam.;

hypanthium campanulate, 2–4 mm diam., exterior glabrous or densely tomentose;

sepals 5, spreading, broadly elliptic or triangular;

petals 5, spreading, white, usually suborbiculate, base slightly clawed;

stamens 15–20, shorter than petals, filaments 2–4 mm;

carpels 5, distinct, adnate to proximal 1/2 of hypanthium, externally glabrous or tomentose, styles terminal, distinct, about equal to stamens;

ovules 2.

6–8 mm diam.;

hypanthium finely hairy;

sepals triangular, 1.5–2 mm, apex acute;

petals suborbiculate, 3–5 mm, apex rounded.

pomes, red or orange-red, rarely yellow, globose, 3–8 mm diam., glabrate;

flesh soft;

hypanthium persistent;

sepals persistent, erect or incurved;

carpels woody;

styles usually persistent.

bright red, 5–8 mm diam.;

pedicels 5–12 mm.

5.

= 17.

= 34 (Europe).