Prunus fremontii |
Prunus glandulosa |
|
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desert apricot |
dwarf flowering almond, flowering almond |
|
Habit | Shrubs, suckering unknown, much branched, 10–40 dm, thorny. | Shrubs, suckering, 5–20 dm, not thorny. |
Twigs | with axillary end buds, glabrous. |
with terminal end buds, glabrous. |
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; petiole 1–6 mm, hairy on adaxial surface, eglandular; blade narrowly elliptic to oblong-lanceolate, 2.5–9 × 0.9–2.5 cm, base cuneate to obtuse, margins crenulate-serrulate, teeth blunt, glandular, apex acute to acuminate, abaxial surface glabrous or slightly hairy along midribs and veins, adaxial glabrous. |
Inflorescences | 1–3-flowered, umbellate fascicles. |
solitary flowers or 2-flowered fascicles. |
Pedicels | 2–12 mm, glabrous. |
6–15 mm, glabrous or sparsely puberulent. |
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, 2–3 mm, glabrous or sparsely puberulent externally; sepals spreading to reflexed, ovate, 2.5–5 mm, margins glandular-toothed, ± ciliate, surfaces glabrous or sparsely puberulent; petals 25+, white or pink, elliptic to narrowly elliptic, 8–11 mm; ovaries glabrous. |
Drupes | yellowish, ellipsoid-ovoid, 8–15 mm, densely puberulent; mesocarps leathery to dry (splitting); stones ovoid, ± flattened. |
reddish, subglobose, 10–15 mm, glabrous; mesocarps fleshy; stones subglobose, not flattened. |
Prunus fremontii |
Prunus glandulosa |
|
Phenology | Flowering Jan–Mar; fruiting Apr–Jun. | Flowering Mar–May. |
Habitat | Dry, sandy or rocky slopes, canyons, desert, chaparral, pinyon-juniper woodlands | Roadsides, fencerows, abandoned plantings |
Elevation | 200–1500 m (700–4900 ft) | 0–400 m (0–1300 ft) |
Distribution |
CA; Mexico (Baja California)
|
IA; MI; NC; ON; e Asia (China, Japan) [Introduced in North America] |
Discussion | Prunus fremontii is known only from the western edge of the Sonoran Desert. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Double-flowered cultivars of Prunus glandulosa, which lack stamens and carpels, are commonly planted as foundation shrubs and in borders. Although the plants are attractive in bloom, some horticulturalists consider them of little ornamental value otherwise. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 9, p. 373. | FNA vol. 9, p. 377. |
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) | Thunberg: in J. A. Murray, Syst. Veg. ed. 14, 463. (1784) |
Web links |