Asimina Adans.
  • Fam. Pl. 2: 365. 1763. (Jul-Aug 1763)
  • Pawpaw [American Indian assimin through French asiminier ]

Cite taxon page as 'WFO (2020): Asimina Adans. Published on the Internet; Accessed on: 25 Feb 2020'

General Information

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.

  • Provided by: [C].Flora of North America @
    • Source: [
    • 1
    • ]. 

    "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."

  • Provided by: [B].New York Botanical Garden
    • Source: [
    • 2
    • ]. 



    Exell, A. W. 1927. William Bartram and the genus Asimina in North America. J. Bot. 65: 65-70. Nash, G. V. 1896. Revision of the genus Asimina in North America. Bull. Torrey Bot. Club 23: 234-242. Uphof, J. C. T. 1933. Die nordamerikanischen Arten der Gattung Asimina. Mitt. Deutsch. Dendrol. Ges. 45: 61-76. Wilbur, R. L. 1970. Taxonomic and nomenclatural observations on the eastern North American genus Asimina (Annonaceae). J. Elisha Mitchell Sci. Soc. 86(2): 88-96. Zimmerman, G. A. 1941. Hybrids of the American pawpaw. J. Heredity 32: 82-91.

  • Provided by: [C].Flora of North America @
    • Source: [
    • 1
    • ]. 

    Other Local Names

    Pawpaw [American Indian assimin through French asiminier ]


     Information From

    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    New York Botanical Garden
    Descriptions of plants should be attributed to the full citation for each individual article, chapter or book that is the source for each record, which should include the authors of original publication.
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    Flora of North America @
    'Flora of North America @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • C Flora of North America Association
    World Flora Online consortium
    World Flora Online Data. 2018.
    • D CC0 1.0 Universal (CC0 1.0).