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Prunus
Family: Rosaceae
Prunus image
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The Morton Arboretum
Tree or shrub Leaves: alternate, usually toothed. The stalk has small, early-falling stipules near the base and usually has a conspicuous pair of glands near the top. Flowers: bisexual, can be solitary but usually in clusters, white to pink or red, with numerous stamens (about twenty) and a usually single pistil with an elongated style, superior ovary, and two ovules (one is aborted). Sepals: five, fused at the base, with spreading to reflexed lobes, usually falling after flowering. Petals: five, elliptic to inversely egg-shaped and spreading. Fruit: fleshy with a hard center stone (drupe), often more or less spherical but varied, usually covered with a waxy whitish coating (glaucous). The stone is usually compressed and bears a single seed. Bark: smooth or breaking into small plates, often with many horizontal corky spots (lenticels). Buds: with many overlapping scales.

Flowering: spring, usually before the leaves emerge

Habitat and ecology: Thickets and woodlands. Some Prunus species are native, while others are introduced and sometimes escape into natural areas.

Notes: The genus Prunus includes many important crops such as cherries, plums, peaches, apricots, and almonds.

Etymology: Prunus is the Latin name for plum.

Author: The Morton Arboretum

Vascular plants of NE US and adjacent Canada
Hypanthium cup-shaped, obconic, or urceolate; sep spreading or reflexed, usually soon deciduous; pet 5, white to pink or red, elliptic to obovate, spreading; stamens ca 20; pistil 1, simple, 2-ovulate, inserted at the bottom of the hypanthium and bearing a terminal style; fr a 1-seeded drupe, the exocarp fleshy or juicy, the endocarp (stone) hard; trees or shrubs with simple, serrate lvs, very often with a pair of large glands at the summit of the petiole, the fls conspicuous, umbellate or solitary from axillary buds or short lateral branches, or racemose and terminal; bark commonly with conspicuous horizontal lenticels, relatively smooth, or breaking up into smooth platelets. (Amygdalus, Cerasus, Padus) 200, mainly N. Temp.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
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Prunus alabamensis
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Prunus alleghaniensis
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Prunus americana
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Prunus andersonii
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Prunus angustifolia
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Prunus armeniaca
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Prunus avium
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Prunus caroliniana
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Prunus cerasifera
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Prunus cerasus
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Prunus communis
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Prunus depressa
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Prunus domestica
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Prunus dulcis
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Prunus emarginata
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Prunus eremophila
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Prunus fasciculata
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Prunus fremontii
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Prunus fruticosa
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Prunus geniculata
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Prunus glandulosa
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Prunus gracilis
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Prunus havardii
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Prunus hortulana
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Prunus ilicifolia
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Prunus insititia
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Prunus laurocerasus
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Prunus lusitanica
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Prunus lyonii
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Prunus mahaleb
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Prunus maritima
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Prunus mexicana
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Prunus minutiflora
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Prunus munsoniana
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Prunus murrayana
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Prunus myrtifolia
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Prunus nigra
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Prunus occidentalis
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Prunus orthosepala
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Prunus padus
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Prunus palmeri
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Prunus pensylvanica
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Prunus persica
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Prunus pugetensis
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Prunus pumila
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Prunus rivularis
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Prunus serotina
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Prunus serrulata
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Prunus slavinii
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Prunus spinosa
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