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Hortulan or wild goose plum, Hortulan plum

Habit Trees, rarely suckering, 40–100 dm, moderately thorny. Shrubs or trees; sometimes armed.
Twigs

with axillary 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.

alternate, simple;

stipules deciduous, free;

venation pinnate.

Inflorescences

2–4-flowered, umbellate fascicles.

Pedicels

8–20 mm, glabrous.

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.

perianth and androecium perigynous;

epicalyx bractlets absent;

hypanthium cup-shaped, obconic, campanulate, or tubular;

torus absent;

carpel 1, distinct, free, style terminal, distinct;

ovules 2 (1 abortive), apical, collateral (obturator present).

Fruits

drupes;

styles deciduous, not elongate.

Drupes

red to yellowish with white dots, not or only slightly glaucous, globose, 20–30(–40) mm, glabrous;

mesocarps fleshy;

stones ovoid-ellipsoid, ± flattened.

2n

= 16.

Prunus hortulana

Rosaceae tribe Amygdaleae

Phenology Flowering Apr–May; fruiting Aug–Sep.
Habitat Roadside thickets, flood plains, open woodlands
Elevation 50–500 m (200–1600 ft)
Distribution
from FNA
AR; IA; IL; IN; KS; KY; MA; MI; MO; NE; OH; OK; TN; VA; WV
[WildflowerSearch map]
[BONAP county map]
North America; Mexico; Central America; South America; Eurasia; Africa; Australia [Widely introduced]
Discussion

Genus 1, species 200+ (44 in the flora).

The base chromosome number for Amygdaleae is x = 8.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 9, p. 382. FNA vol. 9, p. 352. Author: Luc Brouillet.
Parent taxa Rosaceae > subfam. Amygdaloideae > tribe Amygdaleae > Prunus Rosaceae > subfam. Amygdaloideae
Sibling taxa
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. fasciculata, P. fremontii, P. geniculata, P. glandulosa, P. gracilis, P. havardii, 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
Synonyms P. hortulana var. mineri
Name authority L. H. Bailey: Gard. & Forest 5: 90. (1892) de Candolle: in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 2: 529. (1825)
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