Prunus fremontii |
Prunus fasciculata |
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desert apricot |
desert almond, desert peach, wild almond |
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Habit | Shrubs, suckering unknown, much branched, 10–40 dm, thorny. | Shrubs, suckering, much branched, 10–20(–30) dm, thorny. | ||||
Twigs | with axillary end buds, glabrous. |
with axillary end buds, glabrous or canescent. |
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Leaves | 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. |
deciduous; sessile; blade oblanceolate to linear, 0.5–2 × 0.1–0.2(–0.4) cm, base long-attenuate, margins nearly entire or obscurely and remotely serrulate in distal 1/3, teeth blunt to sharp, sometimes glandular, apex rounded to acute, surfaces puberulent or glabrous or low-papillate (var. punctata). |
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Inflorescences | 1–3-flowered, umbellate fascicles. |
solitary flowers or 2-flowered fascicles. |
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Pedicels | 2–12 mm, glabrous. |
0–4 mm, glabrous. |
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Flowers | 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. |
unisexual, plants dioecious, blooming at leaf emergence; hypanthium campanulate, 1.5–3 mm, glabrous externally; sepals erect-spreading, triangular, 0.7–1 mm, margins entire, surfaces glabrous; petals white to yellowish, elliptic, obovate, or suborbiculate, 1.4–2.5(–4) mm; ovaries hairy. |
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Drupes | yellowish, ellipsoid-ovoid, 8–15 mm, densely puberulent; mesocarps leathery to dry (splitting); stones ovoid, ± flattened. |
gray to red-brown, ovoid, ± compressed, 7–15 mm, densely puberulent; hypanthium tardily deciduous; mesocarps leathery to dry; stones ovoid, ± flattened. |
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Prunus fremontii |
Prunus fasciculata |
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Phenology | Flowering Jan–Mar; fruiting Apr–Jun. | |||||
Habitat | Dry, sandy or rocky slopes, canyons, desert, chaparral, pinyon-juniper woodlands | |||||
Elevation | 200–1500 m (700–4900 ft) | |||||
Distribution |
CA; Mexico (Baja California)
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AZ; CA; NV; UT; nw Mexico
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Discussion | Prunus fremontii is known only from the western edge of the Sonoran Desert. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 9, p. 373. | FNA vol. 9, p. 370. | ||||
Parent taxa | Rosaceae > subfam. Amygdaloideae > tribe Amygdaleae > Prunus | Rosaceae > subfam. Amygdaloideae > tribe Amygdaleae > Prunus | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | P. eriogyna | Emplectocladus fasciculatus | ||||
Name authority | S. Watson: in W. H. Brewer et al., Bot. California 2: 442. (1880) | (Torrey) A. Gray: Proc. Amer. Acad. Arts 10: 70. (1874) | ||||
Web links |