Wolffia brasiliensis Wedd.
-
Authority
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
-
Family
Araceae
-
Scientific Name
-
Description
Species Description - Thallus broadly ovoid, slightly asymmetrical, mostly 0.5–1.5 × 0.3– 1.0 mm, 1–1.5 times as long as wide, rounded at the tip, the upper side floating just above the water, punctate (post mortem) with brown pigment-cells, elevated near the middle into a conical papilla; 2n=20, 40, 50, 60, 80. Quiet water; N.J. and Md. to O., Ind., Mich., and Kans., s. to Fla., Tex., and S. Amer. (W. papulifera; W. punctata)