Iva annua L.

• Region

  North America

• Country

  United States of America

• State/Province

  Texas

• County/Municipio

  Travis Co.

• City/Township

  Austin

• Locality

  Colorado River, ca. 0.1-0.2 miles upstream from (W of) US Rt. 183 / Airport Road bridges, east side of Austin. Montopolis Quadrangle

• Elevation

  Alt. 122 - 125 m. (400 - 410 ft.)

• Coordinates

  30.2451, -97.6958

• Distribution

  Map all specimens of this taxon

FLORA OF TEXAS
The Nature Conservancy of Texas
Iva annua L.
TRAVIS CO.: annual to 7 ft. tall here; common in mostly
herbaceous vegetation on large gravel bar island in Colorado
River, ca. 0.1-0.2 miles upstream from (W of) US Rt. 183 /
Airport Road bridges, east side of Austin, at N30°14'42.4”,
W097o41’44.9” and vicinity. Montopolis Quadrangle. Elev.
400-410 ft.
Associates included Acer negundo, Acmella oppositifolia, Ambrosia tri-
fida, Amorpha fruticosa, Ampelopsis arborea, Andropogon glomeratus,
Anrndo donax, Aster subulatus, Baccharis neglecta, Caiya illinoinensis
(seedlings), Chamaesyce maculata, Colocasia sp., Conoclinium coeles-
tinum, Conyza canadensis, Cyperus strigosus, Digitaria sp., Echinochloa
sp., Eupatorium serotinum, Heterotheca latifolia, Iva annua, Justicia
americana with Cuscuta campestris, Lobelia cardinalis, Ludwigia octo-
valvis, Malvastrum coromandcl ianum, Mikania scandens, Morus alba,
Panicum virgatum, Parkinsonia aculeata, Paspalum urvillei, Persicaria
spp., Platanus occidentals (to 8’ tall), Pluchea odorata, Populus deltoides
(saplings and seedlings), Rubus trivialis, Rumex sp., Salix nigra, Sesbania
macrocarpa, Solidago canadensis, Triadica sebifera (saplings), Verbena
brasiliensis, Xanthium strumarium, Zizaniopsis miliacea.
W. R. Carr	#30033	22 October 2011
(with Tom Wendt and Mike Lyday)
03176744