Prunus brigantiaca, Vill. (Armeniaca brigantiaca, Pers. P. Armeniaca subsp. brigantiaca, Dipp.). Alpine Plum. Shrub or small thornless tree, with mostly smaller lvs. and smaller smooth subacid fr. the size of a small green-gage plum: lvs. broad-oval or ovate, the blade 2-3 in. long, abruptly short-pointed, very sharp-serrate, above glabrous or essentially so, beneath lighter- colored and more or less hairy on rib and nerves, the petiole gland-bearing and usually less than 1 in. long: fls. white, about 1/2in, across. French Alps.