Stems freely branched, villous, to 5 dm; petioles 1-5 mm; lvs broadly ovate to triangular-ovate, 1-3 cm, truncate at base, ±hastate by the development of 1-2 low teeth at the lateral angles; pedicels very slender, 1-3 cm, glabrous throughout or villosulous near the base and summit only; fls as in no. 1 [Kickxia spuria (L.) Dumort.]; 2n=18, 36. Native of Eurasia, established as a weed in moist sandy soil in most of our range, s. to Fla. and La. June-Sept. (Linaria e.)
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
This species was found in 1925 by R. C. Friesner in Clifty Falls State Park, Jefferson County. It was well established about half a mile north of Tunnel Falls. It has also been reported from Ohio and Vanderburg Counties by Hansen (Proc. Indiana Acad. Sci. 34: 257. 1925.) There is a specimen in the herbarium of Indiana University collected by Wible in Lawrence County.
Indiana Coefficient of Conservatism: C = null, non-native