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Vascular Plants of California
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Higher Taxonomy
Family: MarsileaceaeView DescriptionDichotomous Key

Habit: Plant generally aquatic or in perennially wet areas, generally rooted in mud; rhizome creeping, slender, branched. Leaf: floating, emergent, or out of water, +- alike; blade 1-palmate or 0, << stipe; veins not or repeatedly forked, free or netted. Sporangia: in stalked, spheric or +- flat-ovoid, hard cases of 1 kind, attached near stipe base. Spores: large megaspores (female) and small microspores (male), in separate sporangia.
Genera In Family: 3 genera, +- 70 species: especially temperate.
eFlora Treatment Author: Andy Murdock, Alan R. Smith & Thomas Lemieux
Scientific Editor: Alan R. Smith, Bruce G. Baldwin.
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

Previous taxon: Marsileaceae
Next taxon: Marsilea oligospora

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Citation for this treatment: Andy Murdock, Alan R. Smith & Thomas Lemieux 2012, Marsilea, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on August 17, 2022.

Citation for the whole project: Jepson Flora Project (eds.) 2022, Jepson eFlora,, accessed on August 17, 2022.