Prunus polystachya Prunus polystachya (Hook. f.) Kalkman in Blumea 13: 88. 1965≡Pygeum polystachyum Hook. f. in Fl. Brit. India 2: 320. 1878Maingay 627 ()=Pygeum myriandrum Merr. in Pap. Mich. Acad. Sc. 19: 155. 1934Bartlett 6871 ()