Prunus fremontii |
Prunus andersonii |
|
---|---|---|
desert apricot |
desert almond, desert peach |
|
Habit | Shrubs, suckering unknown, much branched, 10–40 dm, thorny. | Shrubs, suckering unknown, much branched, 10–20(–30) dm, thorny. |
Twigs | with axillary end buds, glabrous. |
with axillary end buds, usually glabrous, rarely puberulent. |
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 narrowly elliptic, obovate, oblanceolate, or spatulate, 1–3 × 0.2–0.6 cm, base long-attenuate, margins usually serrulate, sometimes obscurely, teeth blunt, inconspicuously glandular, apex usually acute, sometimes obtuse, surfaces usually glabrous, sometimes puberulent. |
Inflorescences | 1–3-flowered, umbellate fascicles. |
solitary flowers or 2-flowered fascicles. |
Pedicels | 2–12 mm, glabrous. |
(1–)4–12 mm, glabrous. |
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. |
blooming at leaf emergence; hypanthium campanulate, 3–4 mm, usually glabrous, rarely puberulent externally; sepals spreading, triangular, 1.5–2.5 mm, margins sparsely glandular-toothed, ciliate, surfaces glabrate; petals usually dark pink, sometimes nearly white, elliptic, obovate, or suborbiculate, (5–)8–11 mm; ovaries hairy. |
Drupes | yellowish, ellipsoid-ovoid, 8–15 mm, densely puberulent; mesocarps leathery to dry (splitting); stones ovoid, ± flattened. |
greenish yellow to red-orange, globose to asymmetrically obovoid, compressed, 10–18 mm, base cuneate-stipitate, apex mucronate, densely puberulent; hypanthium persistent; mesocarps leathery to dry (often splitting); stones ellipsoid to subglobose, ± flattened. |
Prunus fremontii |
Prunus andersonii |
|
Phenology | Flowering Jan–Mar; fruiting Apr–Jun. | Flowering Mar–May; fruiting Jun–Aug. |
Habitat | Dry, sandy or rocky slopes, canyons, desert, chaparral, pinyon-juniper woodlands | Dry rocky slopes, washes, canyons, sagebrush scrub, pinyon-juniper woodlands |
Elevation | 200–1500 m (700–4900 ft) | 900–2600 m (3000–8500 ft) |
Distribution |
CA; Mexico (Baja California)
|
CA; NV
|
Discussion | Prunus fremontii is known only from the western edge of the Sonoran Desert. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Prunus andersonii inhabits the Great Basin Desert region of central and western Nevada, ranging westward into California to the eastern slopes of the Sierra Nevada from Modoc County south to Inyo County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 9, p. 373. | FNA vol. 9, p. 373. |
Parent taxa | Rosaceae > subfam. Amygdaloideae > tribe Amygdaleae > Prunus | Rosaceae > subfam. Amygdaloideae > tribe Amygdaleae > Prunus |
Sibling taxa | ||
Synonyms | P. eriogyna | |
Name authority | S. Watson: in W. H. Brewer et al., Bot. California 2: 442. (1880) | A. Gray: Proc. Amer. Acad. Arts 7: 337. (1868) |
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