United States, Texas, Travis, S side of access road on S side of US Rt. 290 on E side of first hilltop E of jct. US Rt. 183, E side of Austin. Austin East Quadrangle.
30.32756 -97.66514
Locally common in unshaded to partially shaded drainage ditch and in bed of natural intermittent stream crossing former blackland prairie landscape on gently rolling topography underlain by Taylor Marl. Associates include Andropogon glomeratus, Cyperus elegans, C. odoratus, Eleocharis sp., Helenium amarum, Juncus interior, J. texanus, J. torreyi, Ludwigia octovalvis, Salix nigra, Triadeca sebifera, Typha domingensis.