Home > Whisk fern

The whisk ferns, traditionally thought not to be true ferns, are odd, "primitive" vascular plants that reproduce solely by spores, without seeds. Recent evidence has suggested that they may in fact be ferns that have lost a number of pteridophytic characteristics, but their status is still uncertain.

There are two species, as listed in the taxobox, with a hybrid known: Psilotum x intermedium W. H. Wagner.

The distribution of Psilotum is tropical and subtropical, in the New World, Asia, and the Pacific. The highest latitudes known are in South CarolinaSouth Carolina ( In Detail) (Full size) State nickname: Palmetto State Other U. States Capital Columbia Largest City Columbia Governor Mark Sanford Area Total Land Water % water Ranked 40th 82,965 km² 78,051 km² 4,915 km² 6% Population Total ( 2000) Densi and southern JapanJapan (, Nippon/Nihon literally "the origin of the sun") is a country in East Asia situated on a chain of islands east of the Asian continent on the western edge of the Pacific Ocean. The largest of these islands are, from north to south, Hokkaido , Honsh for P. nudum.