Smooth Pawpaw (Asimina glabra)

Silhouette: T. Michael Keesey / License

Asimina glabra: Glabrous Pawpaw Botanical Profile

Occupying the sandy soils and flatwoods of the southeastern United States, this wild deciduous shrub is characterized by its smooth, hairless stems and leaves. Often discussed in taxonomic databases alongside related pawpaw species, it is closely associated with dry pineland habitats.

Like other native pawpaws, it plays a vital role in supporting local biodiversity. It has adapted to fire-prone ecosystems, allowing it to resprout and thrive after seasonal burns.

Taxonomy

∟ царство Plantae
∟ division Tracheophytes (Vascular Plants)
∟ subdivision Spermatophytes (Seed plants)
∟ Angiosperms
∟ magnoliids
∟ order Magnoliales
∟ family Annonaceae (Custard apple family)
∟ subfamily Annonoideae
∟ genus Asimina (Pawpaw)
∟ species Asimina glabra (Smooth Pawpaw)

Morphology

The defining feature of this species is its glabrous nature, which distinguishes it from more pubescent members of the genus. Its morphological traits include:

Foliage: Smooth, obovate leaves that lack the fine hairs typically found on the undersides of other pawpaw leaves.
Stems: Slender, hairless twigs that are greyish-brown when mature.
Flowers: Small, nodding flowers with white to pale yellow petals, which appear singly in spring.

Flowering season

Spring

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Name

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Applications

This wild plant has no significant commercial uses or agricultural applications. It is valued primarily for conservation purposes, habitat restoration, and as a native host for the larvae of the zebra swallowtail butterfly (Protographium marcellus).

Interesting facts

The specific name glabra refers to the smooth, hairless texture of its leaves and stems, which is a key identifying marker in the field. This trait helps botanists separate it from other Asimina species that have hairy or leathery leaves.