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Asimina
Family: Annonaceae
Asimina image
Nathanael Pilla
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Robert Kral in Flora of North America (vol. 3)
Shrubs or small trees , taprooted; trunks straight in arborescent forms. Bark thin, cracking longitudinally (shallowly furrowed in larger trees of Asimina triloba ). Shoots: secondary branching sparse to copious, 2-ranked; primary shoots of shrubs usually several, erect to arching or decumbent; lenticels scattered, small, prominent; buds naked. Leaves deciduous. Leaf blade membranous or leathery, glabrous to variously hairy. Inflorescences axillary, on new shoots or from above leaf scars of previous seasons, fascicles; peduncle bracteate or bracteolate. Flowers 1-4 per leaf axil, nodding to nearly erect, becoming enlarged; receptacle convex to ±globose or elongate, elevated; sepals deciduous, 3(-4), nearly distinct, triangular to deltate-ovate, valvate in bud; petals in 2 unequal whorls, each of 3-4 equal members, with prominent veins, imbricate in bud, those of outer whorl larger, thinner than those of inner whorl; nectaries present, usually with differently pigmented, thickened-corrugate zones adaxially near petal bases; stamens very numerous, short-columnar, forming ball; filament short; connective blunt to nearly spheric or cuboid; pistils 2-8(-12), sessile to stipitate, distinct, glabrate; ovules several (sometimes few) in 2 staggered rows. Fruits simple berries, usually 3-5 per flower, spreading from swollen receptacles, unevenly oblong-cylindric, pulpy. Seeds 3-many per pistil, bean-shaped, slightly compressed laterally, coat tough, margins absent. x =9.
Vascular plants of NE US and adjacent Canada
Sep soon deciduous; outer pet imbricate, inner smaller, valvate; pollen in tetrads, uniaperturate; pistils (1-)3-15, usually only 1-3 maturing; ovules several or many; fr fleshy, aromatic; shrubs or small trees with deciduous lvs. 10, e. U.S.

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.
Show all taxa
Asimina angustifolia
Image of Asimina angustifolia
Asimina grandiflora
Image of Asimina grandiflora
Asimina incana
Image of Asimina incana
Asimina longifolia
Image of Asimina longifolia
Asimina manasota
Image of Asimina manasota
Asimina nashii
Image of Asimina nashii
Asimina obovata
Image of Asimina obovata
Asimina parviflora
Image of Asimina parviflora
Asimina pulchella
Image of Asimina pulchella
Asimina pygmaea
Image of Asimina pygmaea
Asimina pygmea
Image of Asimina pygmea
Asimina reticulata
Image of Asimina reticulata
Asimina rugelii
Image of Asimina rugelii
Asimina spatulata
Image of Asimina spatulata
Asimina speciosa
Image of Asimina speciosa
Asimina tetramera
Image of Asimina tetramera
Asimina triloba
Image of Asimina triloba
Asimina x nashii
Image of Asimina x nashii
Asimina x piedmontana
Image of Asimina x piedmontana
The National Science Foundation
Development supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)
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