秋水仙（学名：Colchicum autumnale），属于秋水仙科秋水仙属，生物碱秋水仙素就是因是从本植物首次萃取出而得名。

多年生草本，地下具有卵形鳞茎。秋**开淡红色花，很美丽，第二年春天长出线形暗绿色叶子。

秋水仙的叶枯萎一段时间后，花梗才会从地上长出。

• 花

• 花

• 雌蕊

• 蒴果

• 叶

Colchicum autumnale, commonly known as autumn crocus, meadow saffron or naked lady, is a flower that resembles the true crocuses, but blooms in autumn. (This is not a reliable distinction, however, since many true crocuses flower in autumn.) The name "naked lady" comes from the fact that the flowers emerge from the ground long after the leaves have died back.