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Cherokee plum, Chickasaw plum, Chickasaw plume, Florida sand plum, sandhill plum

desert almond, desert peach, wild almond

Habit Shrubs or trees, often suckering, 10–50 dm, thorny. Shrubs, suckering, much branched, 10–20(–30) dm, thorny.
Twigs

with axillary end buds, glabrous.

with axillary end buds, glabrous or canescent.

Leaves

deciduous;

petiole 2–14 mm, usually sparsely hairy on adaxial surface, rarely glabrous or hairy on both surfaces, usually eglandular, sometimes glandular distally, glands 1–2;

blade lanceolate to narrowly elliptic, usually folded along midribs, often ± falcate, 1.5–6 × 0.8–2 cm, base cuneate to obtuse, margins crenulate-serrulate, teeth blunt, glandular, glands reddish orange, conic, apex acute, abaxial surface glabrate with hairs along midribs and major veins, adaxial 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).

Inflorescences

2–4-flowered, umbellate fascicles.

solitary flowers or 2-flowered fascicles.

Pedicels

3–10 mm, glabrous.

0–4 mm, glabrous.

Flowers

blooming before, sometimes at, leaf emergence;

hypanthium campanulate, 1.5–3 mm, usually glabrous, rarely hairy, externally;

sepals erect to spreading, ovate, 1–2 mm, margins entire, sparsely ciliate, abaxial surface glabrous, adaxial hairy;

petals white, suborbiculate to obovate, 3–6 mm;

ovaries glabrous.

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.

Drupes

red to yellow, lightly glaucous, globose to ellipsoid, 15–20 mm, glabrous;

mesocarps fleshy;

stones ovoid, ± flattened.

gray to red-brown, ovoid, ± compressed, 7–15 mm, densely puberulent;

hypanthium tardily deciduous;

mesocarps leathery to dry;

stones ovoid, ± flattened.

2n

= 16.

Prunus angustifolia

Prunus fasciculata

Phenology Flowering Feb–Apr; fruiting May–Aug.
Habitat Thickets, upland sandy soil, open woods, sand dunes, fence rows, pastures, roadsides, stream bottoms
Elevation 0–600 m (0–2000 ft)
Distribution
from FNA
AL; AR; CO; DC; DE; FL; GA; IL; IN; KS; KY; LA; MD; MO; MS; NC; NE; NJ; NM; OK; PA; SC; TN; TX; VA; WV
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ; CA; NV; UT; nw Mexico
[WildflowerSearch map]
[BONAP county map]
Discussion

A naturalized population of Prunus angustifolia in Santa Barbara County, California, has been extirpated.

Prunus angustifolia is one of the more distinctive plum species in North America. The leaves are relatively small, usually folded along their midribs, and have relatively large, reddish orange, conic glands along the margins. When it hybridizes with other plums, the hybrids often have distinctive characteristics and have been named as species more often than hybrids not involving P. angustifolia: P. ×orthosepala Koehne (angustifolia × americana), P. ×slavinii E. J. Palmer ex Rehder (angustifolia × gracilis), P. ×utahensis Koehne (angustifolia × pumila var. besseyi); see also discussion under 42. P. rivularis.

(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.)

Key
1. Leaf blades sparsely to densely puberulent, not papillate.
var. fasciculata
1. Leaf blades glabrous, sometimes papillate.
var. punctata
Source FNA vol. 9, p. 381. FNA vol. 9, p. 370.
Parent taxa Rosaceae > subfam. Amygdaloideae > tribe Amygdaleae > Prunus Rosaceae > subfam. Amygdaloideae > tribe Amygdaleae > Prunus
Sibling taxa
P. americana, P. andersonii, P. armeniaca, 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. 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
P. fasciculata var. fasciculata, P. fasciculata var. punctata
Synonyms P. angustifolia subsp. varians, P. angustifolia var. watsonii Emplectocladus fasciculatus
Name authority Marshall: Arbust. Amer., 111. (1785) (Torrey) A. Gray: Proc. Amer. Acad. Arts 10: 70. (1874)
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