Much like no. 1 [Gleditsia triacanthos L.]; petioles glabrous; pods elliptic or ovate, 3-5 cm, pointed at both ends, glabrous, with 1(-3) seeds, lacking pulp; 2n=28. Swamps and low woods, mainly along larger rivers, tolerant of flooding; S.C. to Fla. and Tex., n. in the Mississippi Valley to s. Ind. and s. Ill. Apr., May.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.

From Flora of Indiana (1940) by Charles C. Deam

This small tree grows on the low borders of sloughs and in swamps in a habitat so low that the base is usually more or less submerged during the winter months. It has been found only in Gibson and Knox Counties. It is rare and usually only a single tree is found except in one place in Little Cypress Swamp in Knox County where it is common over an area of half an acre or more.

......

Indiana Coefficient of Conservatism: C = 8

Wetland Indicator Status: OBL

Deam (1932): ... the measurements taken from the largest tree now known in Indiana, which is located on the shore of Dan's Pond in Knox County -- it measures 158 cm (66 inches) in circumference at 1 m. above the ground, and is estimated to be 10 m (30 feet) high. This specis is too rare to be of economic importance.