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albaricoque, apricot, damasco, Siberian apricot

Habit Trees, not suckering, 50–100 dm, not thorny. Shrubs or trees, sometimes subshrubs or herbs.
Twigs

with axillary end buds, glabrous.

Leaves

deciduous;

petiole (12–)20–45 mm, glabrous, glandular distally or on margins at bases of blades, glands 1–5;

blade broadly ovate to suborbiculate, (3–)5–9 × (2–)4–8 cm, base usually obtuse to rounded, sometimes truncate or subcordate, margins singly to doubly crenate-serrate, teeth blunt, glandular, apex abruptly short-acuminate, abaxial surface with tufts of hairs in vein axils, adaxial glabrous.

alternate, sometimes opposite, simple, sometimes pinnately compound;

stipules present or absent.

Inflorescences

solitary flowers.

Pedicels

1–3 mm, hairy.

Flowers

blooming before leaf emergence;

hypanthium tubular-campanulate, 4–6 mm, glabrous or sparsely hairy externally;

sepals reflexed, oblong-ovate, 4–6 mm, margins remotely glandular-toothed, surfaces sparsely hairy;

petals white (pink in bud), broadly elliptic to suborbiculate, 8–12 mm;

ovaries hairy.

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.

Fruits

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).

Drupes

yellow to orange, often tinged with red, ellipsoid to globose, laterally compressed, 25–60 mm, velutinous;

mesocarps fleshy;

stones ellipsoid to subglobose, strongly flattened, not pitted.

x

= 8, 9, 15, 17.

2n

= 16.

Prunus armeniaca

Rosaceae subfam. amygdaloideae

Phenology Flowering Mar–Apr; fruiting May–Jul.
Habitat Roadsides, abandoned plantings
Elevation 20–1600 m (100–5200 ft)
Distribution
from FNA
CA; CO; IA; ID; KS; MI; MO; MT; NM; OR; PA; UT; VA; WA; Asia (China) [Introduced in North America]
[WildflowerSearch map]
[BONAP county map]
from FNA
HI; North America; Mexico; Central America; South America; Europe; Asia; Africa; Atlantic Islands (Madeira); Australia
Discussion

Commercial production of apricots in North America is in the western United States, mostly in the San Joaquin Valley of California. There is little market for fresh apricots because of their extremely short shelf life; most fruits are preserved by drying.

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

Cyanogenic glycosides are usually present in Amygdaloideae; sorbitol is present.

The name Amygdaloideae Arnott (1832) has priority over Spiraeoideae Arnott (1832), used by D. Potter et al. (2007), because Amygdalaceae (1820) is an earlier conserved name.

Tribes 9, genera 55, species ca. 1300 (9 tribes, 38 genera, 361 species, including 20 hybrids, in the flora)

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

Source FNA vol. 9, p. 375. FNA vol. 9, p. 345. Author: Luc Brouillet.
Parent taxa Rosaceae > subfam. Amygdaloideae > tribe Amygdaleae > Prunus Rosaceae
Sibling taxa
P. americana, P. andersonii, P. angustifolia, 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. 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
Subordinate taxa
Synonyms Armeniaca vulgaris
Name authority Linnaeus: Sp. Pl. 1: 474. (1753) Arnott: Botany, 107. (1832)
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