Tree to 10 m; lvs oblong-lanceolate to oblong, 8-13 cm, long-acuminate, obtuse to rounded at base, sparsely hairy beneath or eventually subglabrous, finely serrate with triangular ascending teeth bearing a terminal gland; pedicels glabrous, 8-15 mm; sep glandular on the margin, pubescent above, at least at base, glabrous below; pet 5-7 mm; fr red, varying to yellow, 2-3 cm; 2n=16. Moist woods and thickets; chiefly in Mo. and Ill., but also irregularly to s. O., sw. Va., Tenn., n. Ark., ne. Okla., and e. Kans. Apr., May, the fls opening when the lvs are half-grown.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
The specimens which I refer to this species are from the southwestern part of the state. My specimens were collected mostly along roadsides. In Sullivan County it is a common tree on the wooded terrace of the bank of the Wabash River. This species is said not to sucker and if this is true, I have wrongly determined a few specimens and they should be referred to Prunus Munsoniana Bailey which has not been reported from Indiana. I think this plum has been introduced into Indiana.