Louisiana State University, Shirley C. Tucker Herbarium (LSU:Vascular Plants)
LSU00117554
49828aca-27a5-11e3-8d47-005056be0003
136581
Conyza canadensis var. canadensis (L.) Cronq.
Asteraceae
Lowell E. Urbatsch (2011)
Canadian horseweed
P. Douglas
958
2003-10-12
2003-10-12
M. Arnett; N. Hastings
United States, Louisiana, Rapides, DMC 5(superscript)64663/34(superscript)79027. Along New Arrowhead Rd. near FAA Radio Facility; 1.7 km WSW of S end of West Twin Lake, ca. 6.1 km W of Flagon Bayou.
43 meters (141ft)
Scattered. Erect, taprooted, annual herb; up to 1.5 m tall. Disk: white. Community: disturbed area bordered by mixed hardwood-loblolly pine forest. Topography: level to rolling. Substrate: sandy clay loam to sandy loam. Associates: Stylosanthes biflora, Croton capitatus, Chamaecrista, Rosa, Rubus, Lespedeza, Paspalum spp.