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Marsilea villosa | by D.Eickhoff
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Marsilea villosa

ʻIhiʻihi, ʻIhiʻihilauākea or Hawaiian waterfern

Marsileaceae (Pepperwort family)

Endemic to the Hawaiian Islands (Niʻihau, extinct?; extant on Oʻahu and Molokaʻi)

IUCN: Endangered

Oʻahu (Cultivated); Oʻahu variety

 

Often, Marsilea spp. have been mistakenly sold on the market as "Shamrock" or "Four-leaf Clover." All belong to very different families: shamrock belongs to Oxalidaceae; clover to Fabaceae, peas and legumes; ʻihiʻihi to Marsileaceae, water ferns.

 

Sporocarps

www.flickr.com/photos/dweickhoff/5187616783/in/photostream/

 

Habit

www.flickr.com/photos/dweickhoff/5187616467/in/photostream/

 

Etymology

The generic name Marsilea is named for Count Luigi Ferdinando Marsigli or Marsili (1656-1730), Italian botanist at Bologna.

 

The Latin specific epithet villosa, hairy, in reference to the hairy rhizomes and sporocarps.

 

NPH 00008

nativeplants.hawaii.edu/plant/view/Marsilea_villosa

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Taken on August 12, 2009