| Family | Psilotaceae |
| Scientific name | Psilotum nudum (L.) Palisot de Beauvois |
| Synonyms | Bernhardia antillarum Müller Berolinensis; Bernhardia capensis Müller Berolinensis; Bernhardia deppeana Müller Berolinensis; Bernhardia dichotoma Willdenow ex Bernhardi; Bernhardia mascarenica Müller Berolinensis; Hoffmannia aphylla Willdenow; Lycopodium nudum L.; Psilotum domingense Gandoger; Psilotum flabellatum Gandoger; Psilotum floridanum Michaux; Psilotum natalense Gandoger; Psilotum novae-hollandiae Müller Berolinensis; Psilotum nudum (Linnaeus) Palisot de Beauvois var. normale Domin; Psilotum nudum (Linnaeus) Palisot de Beauvois var. fallacinum (Domin) Domin; Psilotum triquetrum Swartz; Psilotum triquetrum Swartz forma insulare Brade; Psilotum triquetrum Swartz var. gracile Hooker; Psilotum triquetrum Swartz var. fallacinum Domin |
| Common name | (Japanese common name) matsuba-ran [pine needles orchid] |
| (English common name) whisk plant, whisk fern, skeleton fork fern | |
| Distribution | (Japan) Honshu (west of Miyagi Prefecture), Shikoku, Kyushu, Okinawa |
| (Other nations) Korea, China, throughout tropics & subtropics | |
| Chromosomal number | n=52, 78, 104, ca.210 |
| Description | Plants 10-40cm. Evergreen. Epiphyte or lithophyte. Perennial Plants. |
| Reference | Psilotum nudum (L.) P. Beauv. |
| Psilotum nudum (Linnaeus) Palisot de Beauvois | |
| Psilotum nudum | |
| Note | Rare species. |
| December 2006 at Koishikawa Botanical Garden |
December 2006 at Koishikawa Botanical Garden |
December 2006 at Koishikawa Botanical Garden |