From The Collaborative International Dictionary of English v.0.48 :
Chokecherry \Choke"cher`ry\, n. (Bot.)
The astringent fruit of a species of wild cherry ({Prunus
Virginiana); also, the bush or tree which bears such fruit.
[1913 Webster]
From WordNet (r) 3.0 (2006) :
chokecherry
n 1: the fruit of the chokecherry tree
2: a common wild cherry of eastern North America having small
bitter black berries favored by birds [syn: chokecherry,
chokecherry tree, Prunus virginiana]