Robert H. Mohlenbrock. USDA SCS. 1991.
Southern wetland flora: Field office guide to plant species
. South National Technical Center, Fort Worth. Provided by USDA NRCS Wetland Science Institute (WSI).
Linnaeus, Sp. Pl. 1: 537. 1753;
A . pendula
Salisbury; Asimina glabra Horta ex C. Koch; Orchidocarpum arietinum Michaux; Porcelia triloba (Linnaeus) Persoon; Uvaria triloba (Linnaeus) Torrey & A. Gray
Shrubs or trees , 1.5-11(-14) m; trunks slender, to 20(-30) cm diam.; bark shallowly furrowed in larger trees. Branches spreading-ascending, slender; new shoots moderately to copiously brown-hairy apically, aging glabrous. Leaves: petiole 5-10 mm. Leaf blade oblong-obovate to oblanceolate, 15-30 cm, membranous, base narrowly cuneate, margins scarcely or not revolute, apex acute to acuminate; surfaces abaxially densely hairy, later sparsely so on veins, adaxially sparsely appressed-pubescent on veins, becoming glabrous. Inflorescences from previous year's shoots before or during new leaf emergence; peduncle nodding, (1-)1.5-2(-2.5) cm, densely hairy, hairs dark brown to red-brown; bracteoles 1-2, basal, usually ovate-triangular, rarely over 2-3 mm, hairy. Flowers maroon, fetid, 2-4(-5) cm diam.; sepals triangular-deltate, 8-12 mm, abaxially densely pilose; outer petals excurved, oblong-elliptic, 1.5-2.5 cm, abaxially puberulent on veins; inner petals elliptic, 1/3-1/2 length of outer petals, base saccate, apex recurved, surfaces abaxially glabrate, veins impressed adaxially, corrugate nectary zone distinct; pistils 3-7(-12). Berries yellow-green, 5-15 cm. Seeds brown to chestnut brown, 1.5-2.5 cm.