Louisiana State University, Shirley C. Tucker Herbarium (LSU:Vascular Plants)
LSU00124136
9e0e1e8e-d303-4b26-9eff-3bdccde1c32b
GUIS M 2980
GUIS-M-00126
128167
Conyza canadensis (L.) Cronq.
Asteraceae
Diane M. Ferguson (2008)
Canadian horseweed
Stephanie M. Gunn-Zumo
PB-86
2005-08-25
2005-8-25
Diane M. Ferguson
United States, Mississippi, Jackson, Gulf Islands National Seashore, Petit Bois Island. Edges of extensive Phragmites marsh bordering the south beach near narrow western section of the island just east of tree line.
30.2014 -88.4369
UTM: Zone 16, 361686.19 Em, 3341975.03 Nm
Marsh bordering beach. Soil characteristics: Duckston sand, 0 to 2 percent slope (365) poorly drained sands in shallow depressions between coastal dunes and on nearly level flats between dunes and marshes. Associate plant species: Cyperus odoratus, Kosteletzkya virginica, Hibiscus grandiflora, Amorpha fruticosa, Toxicodendron radicans, Ampelopsis arborea, Sacciolepis striata, Mikania scandens, Vigna luteola. Abundant.