Prunus hortulana |
Prunus glandulosa |
|
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Hortulan or wild goose plum, Hortulan plum |
dwarf flowering almond, flowering almond |
|
Habit | Trees, rarely suckering, 40–100 dm, moderately thorny. | Shrubs, suckering, 5–20 dm, not thorny. |
Twigs | with axillary end buds, glabrous. |
with terminal end buds, glabrous. |
Leaves | deciduous; petiole 6–20 mm, hairy on adaxial surface, usually glandular distally, glands 1–5; blade narrowly elliptic, lanceolate, oblanceolate, or oblong-obovate, (5–)7–11(–13) × (2–)3–5.5 cm, base obtuse to rounded, margins singly to doubly crenate-serrate, teeth blunt, glandular, glands inconspicuous, blackish, apex long-acuminate, abaxial surface ± hairy along midribs and veins, adaxial glabrous or with hairs along midribs. |
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 | 2–4-flowered, umbellate fascicles. |
solitary flowers or 2-flowered fascicles. |
Pedicels | 8–20 mm, glabrous. |
6–15 mm, glabrous or sparsely puberulent. |
Flowers | blooming before or at leaf emergence; hypanthium campanulate, 2–3 mm, glabrous externally; sepals erect to reflexed, ovate, 1.5–3 mm, margins glandular-toothed, abaxial surface glabrous or sparsely hairy, adaxial densely hairy at bases; petals white, obovate, 4–9 mm; ovaries glabrous. |
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 | red to yellowish with white dots, not or only slightly glaucous, globose, 20–30(–40) mm, glabrous; mesocarps fleshy; stones ovoid-ellipsoid, ± flattened. |
reddish, subglobose, 10–15 mm, glabrous; mesocarps fleshy; stones subglobose, not flattened. |
2n | = 16. |
|
Prunus hortulana |
Prunus glandulosa |
|
Phenology | Flowering Apr–May; fruiting Aug–Sep. | Flowering Mar–May. |
Habitat | Roadside thickets, flood plains, open woodlands | Roadsides, fencerows, abandoned plantings |
Elevation | 50–500 m (200–1600 ft) | 0–400 m (0–1300 ft) |
Distribution |
AR; IA; IL; IN; KS; KY; MA; MI; MO; NE; OH; OK; TN; VA; WV
|
IA; MI; NC; ON; e Asia (China, Japan) [Introduced in North America] |
Discussion | 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. 382. | FNA vol. 9, p. 377. |
Parent taxa | Rosaceae > subfam. Amygdaloideae > tribe Amygdaleae > Prunus | Rosaceae > subfam. Amygdaloideae > tribe Amygdaleae > Prunus |
Sibling taxa | ||
Synonyms | P. hortulana var. mineri | |
Name authority | L. H. Bailey: Gard. & Forest 5: 90. (1892) | Thunberg: in J. A. Murray, Syst. Veg. ed. 14, 463. (1784) |
Web links |