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| July 2008 at Karuiizawa Botanical Garden |
July 2008 at Karuiizawa Botanical Garden |
July 2008 at Karuiizawa Botanical Garden |
| Family | Botrychiaceae (also placed in Ophioglossaceae) |
| Scientific name | Botrychium strictum Underwood |
| Synonyms | Botrychium brachystachys O. Kunze; Botrychium charcoviense Portenschl ex C. Presl; Botrychium cicutarium (Savigny) Swartz; Botrychium dichronum Underwood; Botrychium gracile Pursh; Botrychium virginianum (L.) Swartz forma gracile (Pursh) Clute; Botrychium virginianum (L.) Swartz subsp. europaeum Jávorka; Botrychium virginianum (L.) Swartz subsp. europaeus (Ångström) Holub; Botrychium virginianum (L.) Swartz subsp. meridionale (Butters) R. T. Clausen; Botrychium virginianum (L.) Swartz subsp. typicum R. T. Clausen; Botrychium virginianum (L.) Swartz var. europaeum Ångström; Botrychium virginianum (L.) Swartz var. gracile (Pursh) Milde; Botrychium virginianum (L.) Swartz var. meridionale Butters; Botrychium virginianum (L.) Swartz var. mexicanum Hooker & Greville; Botrychium virginicum Willdenow var. gracile (Pursh) C. Presl; Botrypus virginianus (L.) Michaux; Botrypus virginianus (L.) Holub; Japanobotrychium virginianum (L.) M. Nishida; Osmunda virginiana L.; Osmundopteris virginiana (L.) Small |
| Common name | (Japanese common name) nastu-no-hana-warabi (ナツノハナワラビ, 夏花蕨 [meaning: summer flowering warabi (warabi = Pteridium aquilinum)]) |
| (English common name) rattlesnake fern, Virginia grape fern | |
| Distribution | (Japan) Hokkaido, Honshu, Shikoku, Kyushu |
| (Other nations) Russia, China, Europe, Canada, USA, Mexico, Costa Rica, El Salvador, Guatemala, Honduras, Panama, Ecuador, Venezuela, Bolivia, Peru | |
| Chromosomal number | n=92, 2n=184 (4x) |
| Description | Leaves 15-35cm long. Terrestrial. Summer green. |
| Reference | Botrychium virginianum (L.) Sw. |
| Botrychium virginianum (L.) Sw. | |
| Botrychium virginianum (Linnaeus) Swartz | |
| Botrychium virginianum | |
| Botrychium virginianum | |
| Botrychium virginianum (L.) Swartz | |
| Botrychium virginianum (L.) Sw. | |
| Botrychium virginianum | |
| Molecular study of arbuscular mycorrhizal fungi colonizing the sporophyte of the eusporangiate rattlesnake fern (Botrychium virginianum, Ophioglossaceae) |
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| July 2008 at Karuiizawa Botanical Garden |
July 2008 at Karuiizawa Botanical Garden |
July 2008 at Karuiizawa Botanical Garden |
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| July 2008 at Karuiizawa Botanical Garden |
