(modifié de Coste, Flore de la France 1937) :
Plante vivace de 15-25 cm, glabrescente, à bulbe unique, dressé, tuniqué, émettant par côté une tige nue et au sommet une feuille
Écologie : Bois frais et pâturages des montagnes : Ardennes et Lorraine, Vosges, Jura, Alpes; Cévennes et Plateau central; Pyrénées; Corse.
Répartition hors de France : Europe surtout centrale; Caucase, Sibérie.
(modified from Butcher, British Flora 1961):
NOTE: the French text is more complete and up-to-date
A slender leafless, flowering scape 10-20 cm high, growing erect from a bulb enclosed in a tunic,10 cm diam.
Ecology UK: (distribution according to flora) It grows at times plentifully in damp meadows and woodlands on basic soils, thinly spread over most of lowland Britain.
France:
Distribution outside France: ?
Fleurs : 2-5 en ombelle, à pédicelles glabres ou pubescents, rarement bractéolés; périanthe d'environ 15 mm, glabre, à divisions oblongues-obtuses
Floraison France : Avril-juin.
Flowers: 15-18 mm diam., in a few-flowered umbel subtended by two leaf-like bracts, the upper being much wider than the lower; perianth rotate to stellate, with six greenish-yellow fading to green, lanceolate, acute, spreading segments; filaments glabrous.
Flowering UK: Mid March-early May.