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albaricoque, apricot, damasco, Siberian apricot

desert apricot

Habit Trees, not suckering, 50–100 dm, not thorny. Shrubs, suckering unknown, much branched, 10–40 dm, thorny.
Twigs

with axillary end buds, glabrous.

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.

deciduous;

petiole 1–7 mm, glabrous, eglandular;

blade elliptic, ovate, or suborbiculate, 0.6–3 × 0.5–2 cm, base obtuse to rounded, subcordate, or truncate, margins obscurely crenulate, crenulate-serrulate, or serrate, teeth blunt, glandular, apex usually obtuse to rounded, sometimes emarginate, surfaces glabrous.

Inflorescences

solitary flowers.

1–3-flowered, umbellate fascicles.

Pedicels

1–3 mm, hairy.

2–12 mm, glabrous.

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.

blooming at leaf emergence;

hypanthium campanulate, 2–4 mm, glabrous externally;

sepals erect-spreading, semicircular to ovate, 1.2–4 mm, margins glandular-toothed, ciliate, abaxial surface glabrous, adaxial hairy;

petals usually white, sometimes pinkish rose, elliptic, obovate, or suborbiculate, 3–10 mm;

ovaries hairy.

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.

yellowish, ellipsoid-ovoid, 8–15 mm, densely puberulent;

mesocarps leathery to dry (splitting);

stones ovoid, ± flattened.

2n

= 16.

Prunus armeniaca

Prunus fremontii

Phenology Flowering Mar–Apr; fruiting May–Jul. Flowering Jan–Mar; fruiting Apr–Jun.
Habitat Roadsides, abandoned plantings Dry, sandy or rocky slopes, canyons, desert, chaparral, pinyon-juniper woodlands
Elevation 20–1600 m (100–5200 ft) 200–1500 m (700–4900 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
CA; Mexico (Baja California)
[WildflowerSearch map]
[BONAP county map]
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.)

Prunus fremontii is known only from the western edge of the Sonoran Desert.

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

Source FNA vol. 9, p. 375. FNA vol. 9, p. 373.
Parent taxa Rosaceae > subfam. Amygdaloideae > tribe Amygdaleae > Prunus Rosaceae > subfam. Amygdaloideae > tribe Amygdaleae > Prunus
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
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. 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
Synonyms Armeniaca vulgaris P. eriogyna
Name authority Linnaeus: Sp. Pl. 1: 474. (1753) S. Watson: in W. H. Brewer et al., Bot. California 2: 442. (1880)
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