Ammannia coccinea Rottb.

PLANTS OF ILLINOIS, USA
Ammannia coccinea Rottb.
Lythraceae
Det.: S. R. Hill, (ILLS) 2001
ALEXANDER COUNTY 37° 19’ 18.3”N.Lat.
89° 25’ 50.9” W. Long. T. US, R. 3W, SE1/4,
SW1/4, SW1/4, Sect. 3 Illinois Route 3 (FAP 312),
McClure, southeast side, periodically ponded area,
sometimes cropped, north of the east-west Devil’s
Island Road (508E), just north of town line. Opposite
abandoned barn. McClure 7.5 minute U.S.G.S.
quadrangle. Elevation about 340 feet. Disturbed wet
silty sand; alluvial deposits.
Degraded floodplain marsh, herbicided and tilled, with
Physalis angulata, Polygonum spp., Ammannia
coccinea, Echinodorus berteroi, Cyperus spp., Bergia
texana, Rumex spp. Locally common annual herb,
erect; flowers not stalked, petals dark magenta; within
a strip of vegetation that escaped herbicide. Apparently
common in seedbank.
Steven R. Hill 34237
Jason A. Koontz
28 August 2001
03788502