Much like no. 1 [Torilis arvensis (Huds.) Link]; lvs often a little less dissected; invol of several bracts, commonly 1 to each ray; fr with shorter, stouter, more obviously subconic, less widely spreading, more upcurved prickles ca 0.5 mm or a little less; 2n=16. Native to the Old World, now widely established as a weed in our range, but less common than no. 1. (T. anthriscus, a preoccupied name)
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 species was first collected in Montgomery County by A. R. Bechtel. It was common on a wooded bank of Sugar Creek about 3 miles north of Crawfordsville in 1926, and in 1927 it was collected in Jonathan Winters' woods about 2 miles northwest of Darlington. In 1935 it was discovered by Miss Edna Banta to be a frequent to common weed along the road and adjacent areas along the river bluff between Brooksburg and Madison in Jefferson County.