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Wetland and Aquatic Plants
of
Oklahoma
Interactive Keys: Free
Floating Plants
Duckweeds
(Lemnaceae)
3. Plants without roots
Brazilian
watermeal (Wolffia
braziliensis Weddell)
Native
perennial.
click
thumbnails to enlarge
Notes: Fronds 0.5
-
1.5 mm long, concave on top, with a
large wart and red spots.
Watermeal
(Wolffia
columbiana Karst.)
Native
perennial.
Notes: Fronds 0.5 -
1.4 mm long, convex on the top, and
lacking red spots.
Mudmidget
(Wolffiella
gladiata (Hegelm.)
Hegelm.)
Native
perennial.
Note: Fronds 4 - 12
mm long and straplike. This species
is known from only one location.
Last update: 1/23/04
Comments to : Bruce Hoagland
bhoagland@ou.edu
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