Flora of North America species comparison

thorns sparse to abundant;

young twigs rusty-hairy (gray-hairy in 1 variation), glabrescent.

stipules 3–8 mm;

petiole 2–5 mm;

blade oblanceolate or obovate, 1.5–6 × 0.5–2.5 cm, base cuneate, margins remotely serrulate or crenulate, often entire proximally, apex obtuse, emarginate, or short-apiculate, surfaces glabrate.

alternate, sometimes opposite, simple, sometimes pinnately compound;

stipules present or absent.

3–4 cm diam.

2–8 mm, usually glabrate, rarely sparsely appressed brown- or gray-hairy.

4–12 mm diam.;

hypanthium glabrate, rarely slightly hairy;

sepals triangular, 1–1.5 mm, apex obtuse;

petals suborbiculate, 3–4 mm, apex rounded.

torus absent or minute;

carpels 1–5(–8), distinct or +/- connate (Maleae), free or +/- adnate to hypanthium (many Maleae), styles distinct or +/- connate (some Maleae);

ovules (1 or)2(–5+), collateral, clustered, or biseriate.

follicles aggregated or not, capsules, drupes aggregated or not, aggregated drupelets, pomes, or aggregated nutlets, rarely achenes or aggregated achenes;

styles persistent or deciduous, not elongate (elongate in Gillenieae).

orange-red to dark red, 3–6 mm diam.;

pedicels 2–10 mm.

= 8, 9, 15, 17.

= 34 (China).