Wolffia

• Region

  North America

• Country

  United States of America

• State/Province

  Wisconsin

• County/Municipio

  Richland Co.

• Locality

  3.3 km WNW of center of Lone Rock, Cruson Slough.

• Elevation

  Alt. 210 m. (689 ft.)

• Coordinates

  43.1908, -90.2369

• Distribution

  Map all specimens of this taxon

The New York Botanical Garden
Plants of U.S.A.
NEW YORK BOTANICAL GARDEN
03700922
Lemnaceae Wolffia
WISCONSIN, Richland Co., 3.3 km WNW of center of Lone
Rock, Cruson Slough, a large, shallow, spring-fed slough
(less than 1 m deep), controlled by a culvert through the
dam, in floodplain of Wisconsin River, bordered on the
north by the dry sand plain.
T 8 N; R 2 E; SWttSW1/* sect. 2.
43°11’27”N, 90°14’13”W. alt. 210 m.
With Pontederia cordata, Nymphaea odorata, Nuphctr
variegata, Ceratophyllwn demersum, Myrophyllum, Elodea,
Potamogeton crispus, Vallisneria americcma.
A few scattered plants, only large numbers on floating alga
mat, with much Lemna minor (no. 59345) and a few
Spirodela polyrhiza.
Coll.: M. Nee 59346
12 July 2012
03700922