Coefficient of Conservatism:
Coefficient of Wetness:
A. A. Reznicek
Like A. arborea, ranges from a shrub to a small tree, most often in dry sandy open forests and savannas, rocky sites, sandy bluffs and shores; also on river banks, at borders of coniferous and deciduous forests, even bog borders.
Referred here are fruiting (and a few vegetative) specimens with short-acuminate, finely toothed, and completely glabrous leaves, but some of these could be hybrids, belong to the A. interior complex, or be unusually glabrous examples of A. arborea (to which have been referred similar specimens retaining at least sparse pubescence on the petiole and midrib beneath). The sepals of this species are often a little longer and more narrowly lanceolate than in A. arborea, but there appears to be no clear distinction in our material.
Plants with glabrous summit on the ovary but obtuse leaves (and perhaps a low colonial habit) are presumably hybrids with the A. spicata complex, expressing their characters in a different combination from the plants included in the A. interior complex. Such plants seem to be quite scarce. Presumed hybrids with A. bartramiana and A. arborea are mentioned under those species.