Flora of North America species comparison

1–10+, orientation unknown;

bark gray to dark gray, smooth, older plaited; short shoots absent; unarmed;

tomentulose to villous-canescent, hairs white, short, tightly crinkled, often tardily to soon glabrescent.

persistent, cauline, erect-ascending to spreading, simple;

stipules tardily deciduous, free, subulate to narrowly deltate, margins entire, glandular;

petiole present;

blade oblong-elliptic or oblong-lanceolate to linear-lanceolate or linear to linear-oblong, (2.2–)3–13(–18.5) cm, leathery, margins flat, usually horny, serrate, serrulate, or crenulate, sometimes doubly serrate, rarely entire, venation pinnate and semicraspedodromous, surfaces tomentulose, sometimes glabrate or puberulent.

alternate, sometimes opposite, simple, sometimes pinnately compound;

stipules present or absent.

terminal or axillary, 15–25+-flowered, compound corymbs, puberulent to tomentulose;

bracts present;

bracteoles present.

present.

perianth and androecium perigynous, 5–10 mm diam.;

hypanthium hemispheric, 1.5–2.5(–3) mm, leathery, sericeous, glabrescent, interior proximal surface nectariferous;

sepals 5, erect, broadly ovate;

petals 5, white, oblong-ovate to oblong-obovate, base clawed, apex rounded to emarginate;

stamens 18–20, shorter than petals;

torus thickened;

carpels 5, connate, free, strigose, styles terminal, distinct;

ovules 2.

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.

capsules, broadly ovoid, 4.5–7.5 mm, woody, sericeous, ventrally (fully) and dorsally (in distal 1/2) dehiscent, splitting into 5 follicles;

hypanthium persistent;

sepals persistent, erect;

styles persistent.

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).

2 per follicle, winged.

= 15.

= 8, 9, 15, 17.