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peach, pêcher, unknown

black plum, Canada plum, Canadian plum, prunier noir

Habit Trees, not suckering, 30–100 dm, not thorny. Shrubs or trees, sometimes suckering, 30–90 dm, moderately thorny.
Twigs

with terminal end buds, glabrous.

with axillary end buds, usually glabrous, rarely hairy.

Leaves

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.

deciduous;

petiole 8–22 mm, glabrate with hairs adaxially, sometimes glandular distally, glands 1–3, discoid;

blade broadly elliptic to obovate, (5–)7–11 × 3–6.5 cm, base obtuse to rounded or subcordate, margins doubly crenate-serrate, teeth blunt, glandular, apex abruptly acuminate, abaxial surface hairy along midribs and major veins, adaxial glabrous.

Inflorescences

usually solitary flowers, sometimes 2-flowered fascicles.

2–4-flowered, umbellate fascicles.

Pedicels

0–3 mm, glabrous.

7–20 mm, usually glabrous, rarely hairy.

Flowers

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.

blooming before or at leaf emergence;

hypanthium red-tinged, obconic, 3–4(–5) mm, usually glabrous, rarely hairy externally;

sepals broadly spreading to reflexed, ovate, 2–4(–5) mm, margins glandular-toothed, abaxial surface usually glabrous, rarely sparsely hairy, adaxial glabrous or hairy;

petals white, often fading to pink, suborbiculate to oblong-obovate, 8–13 mm;

ovaries glabrous.

Drupes

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

mesocarps fleshy;

stones ellipsoid, strongly flattened, deeply pitted, furrowed.

red, orange, or yellowish, barely glaucous, globose to ellipsoid, 15–30 mm, glabrous;

mesocarps fleshy;

stones ovoid-ellipsoid, strongly flattened.

2n

= 16.

= 16.

Prunus persica

Prunus nigra

Phenology Flowering Feb–Apr; fruiting Jun–Aug. Flowering Apr–Jun; fruiting Aug–Sep.
Habitat Roadsides, fencerows, abandoned farms, streamsides, canyons Borders of deciduous woods, bottomland forests, roadside thickets
Elevation 0–2300 m (0–7500 ft) 10–800 m (0–2600 ft)
Distribution
from FNA
AL; AR; AZ; CA; CT; DC; DE; FL; GA; IA; ID; IL; IN; KS; KY; LA; MA; MD; ME; MI; MO; MS; NC; NJ; NY; OH; OK; OR; PA; RI; SC; TN; TX; UT; VA; WI; WV; NS; ON; e Asia [Introduced in North America]
[WildflowerSearch map]
[BONAP county map]
from FNA
CT; IA; IL; IN; MA; ME; MI; MN; ND; NH; NY; OH; VT; WI; MB; NB; NS; ON; QC
[WildflowerSearch map]
[BONAP county map]
Discussion

Peaches are cultivated throughout much of North America. Commercial production is diffuse, occurring in over half of the lower 48 states as well as in southern British Columbia and southern Ontario. Freestone peaches for fresh eating come largely from California, Georgia, New Jersey, North Carolina, Pennsylvania, and South Carolina; most clingstones are used for canning and are grown in California. Nectarines are a variety with hairless skin. The fruits are popular on picnics, and peach saplings are commonly encountered anywhere pits are discarded. Escapes are usually short-lived; some escapes form naturalized populations. Double-flowered cultivars are used ornamentally.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

In the northeastern United States and adjacent Canada, Prunus nigra co-occurs with, and is sometimes confused with, P. americana, despite being distinct in both flower and leaf. The red-tinged hypanthia and sepals of P. nigra give the entire inflorescence a pinkish coloration even when the petals are pure white, and the sepals bear obvious glandular teeth along their margins; in P. americana the hypanthia and sepals are green and the sepals bear relatively few glandular teeth or are eglandular. The leaf marginal teeth of P. nigra are rounded and bear glands at their tips or have callus scars where the glands fell off; those of P. americana are acute and eglandular; some may have a callused tip.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 9, p. 371. FNA vol. 9, p. 379.
Parent taxa Rosaceae > subfam. Amygdaloideae > tribe Amygdaleae > Prunus Rosaceae > subfam. Amygdaloideae > tribe Amygdaleae > Prunus
Sibling taxa
P. americana, P. andersonii, P. angustifolia, P. armeniaca, P. avium, P. caroliniana, P. cerasifera, P. cerasus, P. domestica, P. dulcis, P. emarginata, P. eremophila, P. fasciculata, P. fremontii, P. geniculata, P. glandulosa, P. gracilis, P. havardii, P. hortulana, P. ilicifolia, P. laurocerasus, P. lusitanica, P. mahaleb, P. maritima, P. mexicana, P. minutiflora, P. murrayana, P. myrtifolia, P. nigra, P. padus, P. pensylvanica, P. pumila, P. rivularis, P. serotina, P. speciosa, P. spinosa, P. subcordata, P. subhirtella, P. texana, P. tomentosa, P. umbellata, P. virginiana, P. yedoensis
P. americana, P. andersonii, P. angustifolia, P. armeniaca, P. avium, P. caroliniana, P. cerasifera, P. cerasus, P. domestica, P. dulcis, P. emarginata, P. eremophila, P. fasciculata, P. fremontii, P. geniculata, P. glandulosa, P. gracilis, P. havardii, P. hortulana, P. ilicifolia, P. laurocerasus, P. lusitanica, P. mahaleb, P. maritima, P. mexicana, P. minutiflora, P. murrayana, P. myrtifolia, P. padus, P. pensylvanica, P. persica, P. pumila, P. rivularis, P. serotina, P. speciosa, P. spinosa, P. subcordata, P. subhirtella, P. texana, P. tomentosa, P. umbellata, P. virginiana, P. yedoensis
Synonyms Amygdalus persica, Persica vulgaris
Name authority (Linnaeus) Batsch: Beytr. Entw. Gewächsreich, 30. (1801) Aiton: Hort. Kew. 2: 165. (1789)
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