Flora of North America species comparison

with terminal end buds, glabrous.

with terminal end buds, glabrous.

deciduous;

petiole (14–)20–40 mm, nearly glabrous or sparsely hairy adaxially, glandular distally or on margins at bases of blades, glands 1–3, discoid;

blade oblong, elliptic-obovate, or obovate, (4–)7–14 × (2.5–)4–8.5 cm, base obtuse to rounded, margins doubly crenate-serrate, teeth blunt, glandular, apex abruptly short-acuminate, abaxial surface moderately hairy (especially midribs and veins), adaxial glabrous.

deciduous;

petiole 5–10(–15) mm, not winged, glabrous, sometimes glandular distally, glands 1–4, discoid;

blade oblong to lanceolate, folded along midribs, often falcate, (5–)7–15 × 2–4.5 cm, base cuneate to obtuse, margins crenulate-serrulate, teeth blunt, glandular, apex acuminate, surfaces glabrous.

1–3-flowered, umbellate fascicles.

usually solitary flowers, sometimes 2-flowered fascicles.

(14–)25–52 mm, glabrous.

0–3 mm, glabrous.

blooming at leaf emergence;

hypanthium tubular-urceolate, 5–7 mm, glabrous externally;

sepals reflexed, oblong, 4–6 mm, margins entire or sparsely and irregularly toothed, surfaces glabrous;

petals white, obovate to suborbiculate, 12–15 mm;

ovaries glabrous.

blooming before leaf emergence;

hypanthium cupulate, 4–5 mm, glabrous externally;

sepals spreading, oblong-ovate, 3.5–5 mm, margins entire, ciliate, abaxial surface hairy (especially along margins), adaxial glabrous;

petals dark pink, obovate to suborbiculate, 10–17 mm;

ovaries hairy.

dark red to purplish black, globose, 13–30 mm, glabrous;

mesocarps fleshy;

stones subglobose, not flattened.

yellow to orange tinged with red, globose, 40–80 mm, velutinous (glabrous in nectarines);

mesocarps fleshy;

stones ellipsoid, strongly flattened, deeply pitted, furrowed.

= 16.

= 16.