Leaf: blades floating and emergent; stipe of floating leaves weak.
Sporangium Case: fused to stalk 0.8--1.7 mm, +- flat-ovoid; hairs long, dense, deciduous or not; distal tooth present or 0, tip of stalk often appearing tooth-like.
Species In Genus: +- 60 species.
Etymology: (L.F. Marsigli, Italian botanist, 1656--1730)
Note: Marsilea mutica Mett. (native to Australia, New Caledonia),
Marsilea drummondii A. Braun (native to Australia) cultivated in United States in aquatic gardens, occasional escape in urban areas, may persist in California; weed of concern in southeastern US [Knepper et al. 2002 Amer Fern J 92:243--244].
Jepson eFlora Author: Andy Murdock, Alan R. Smith & Thomas Lemieux
Reference: Johnson 1986 Syst Bot Monogr 11:1--87
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)Key to Marsilea
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