This section is from the book "An Illustrated Flora Of The Northern United States, Canada And The British Possessions Vol2", by Nathaniel Lord Britton, Addison Brown. Also available from Amazon: An Illustrated Flora of the Northern United States, Canada and the British Possessions. 3 Volume Set..
Aronia alnifolia Nutt. Gen. 1: 306. 1818.
A. alnifolia Nutt.; Roemer, Syn. Man. 3: 147.
A shrub, 6°-8° high, more or less to-mentose-pubescent when young, at length glabrate throughout and somewhate glaucous. Leaves thick, broadly elliptic or almost orbicular, very obtuse and often truncate (rarely acutish) at the apex, rounded or subcordate at the base, coarsely dentate above the middle, 1/2'-2' long; racemes short, rather dense; pedicels short; petals oblanceolate, cuneate, 3"-9" long, 2-4 times the length of the calyx; pome purple with a bloom, 3"-4" high, sweet.
Dry soil, western Ontario to British Columbia, South Dakota, Nebraska, New Mexico and California. Pigeon-berry. April-May.
Mon. 3: 145. 1847. A. Bartramiana Roem. loc. cit. 1847.
A shrub, 2°-9° high, glabrous, or very nearly so throughout, except the early deciduous bracts, which are sometimes loosely to-mentose. Leaves thin, narrowly oval or oblong, generally about 3 times as long as broad, narrowed and acute or acutish at each end, finely and sharply serrate, 1'-3' long; racemes 1-4-flow-ered; pedicels slender; petals obovate or oblanceolate, 3"-4" long, about twice as long as the calyx; pome oval to pear-shaped, purple, with a bloom, 3"~4" long.