ANNONACEAE: Custard-apple Family
KEY TO SPECIES OF ASIMINA
1. Twigs densely pale tawny- to blond-hairy when young, retaining many of the hairs for at least a year, especially near twig tip. Mature buds densely hairy, the hairs usually dirty white to grayish .................…… A. incana
1. Twigs densely to sparsely hairy when young, the hairs reddish-tan, reddish, or orange-colored, usually retaining only a few hairs through the summer. Mature buds thinly hairy or, if densely so, the hairs reddish or orange-colored ........................................... 2
2. Leaf blade oblong to elliptic, rarely some cuneate ...................... A. reticulata
2. Leaf blade obovate to oblanceolate, less commonly some oblong, ovate, oblong-oval, or oblong-obovate, rarely some linear-elliptic ....................... 3
3. Leaves usually spreading in several directions; petiole densely red-hairy, most hairs falling by summer's end ................... A. obovata
3. Leaves usually erect or nearly so; petiole with scattered red hairs, usually becoming glabrous early ............ A. pygmaea