| Family | Orchidaceae | 
| Subfamily | Epidendroideae | 
| Tribe | Malaxideae | 
| Scientific name | Liparis nervosa (Thunberg ex Murray) Lindley | 
| Synonyms | Ophrys nervosa Thunberg ex Murray | 
| Common name | (Japanese common name) koku-ran (コクラン, 黒蘭 [meaning: black orchid]) | 
| (English common name) none | |
| Distribution | (Japan) Honshu (south of Ibaraki Prefecture), Shikoku, Kyushu | 
| (Other nations) China | |
| Habitat | Evergreen broadleaf forest. | 
| Chromosomal number | 2n=42 | 
| Description | Bulbs green ca. 4cm long. Leaves 2-3, each 5-12cm long, 2.5-5cm wide. Scapes single electing 15-35cm tall. Flowers dark purple (merely green), bracts ca. 2mm long, sepals 5-6mm long, lip petals 5mm-6mm long, flowering in June to July. Fruits 2-2.5cm long. Perennial plants. | 
| Reference | Liparis nervosa Lindl. | 
| Liparis nervosa (Thunberg ex Murray) Lindley | |
| Liparis nervosa (Thunb.) Lindl. 1830 | |
| The effects of the concentration of powdered oats in the medium on the growth of symbiotic seedlings of Spiranthes sinensis ames and liparis nervosa lindl. | |
| DNA information | Liparis nervosa | 
| June 2009 at Tsukuba Botanical Garden  | 
      June 2009 at Tsukuba Botanical Garden  | 
    
| June 2007 at my home  | 
      June 2007 at my home  | 
      July 2008 at lowland forest  | 
    
| Photo by Mr. Ponpoko | Photo by Mr. Ponpoko | 
| July 2008 at mountane forest  | 
      July 2008 at mountane forest  | 
    
| (fruits) | 
| December 2008 at my home  |