Clintonia udensis is a species of flowering plant in the lily family Liliaceae. It is the only species of Clintonia native to Asia. It prefers sparsely forested habitat including the alpine forests of the Himalayas.
Clintonia udensis is a perennial herbaceous plant that spreads by means of underground rhizomes, forming colonies on the floors of temperate forests. It has 3--5 egg-shaped to elliptical leaves, each leaf 8to long and 3to wide. The leaf margins are pubescent when young. The pubescent stem (technically, a scape) is 10to long. While fruiting, the stem elongates up to 600NaN0 long. The inflorescence is 3--12-flowered, in short terminal racemes with densely pubescent pedicels. The tepals are white, sometimes bluish, each tepal 7to long. The berries are dark blue, almost black, up to 121NaN1 across.
Clintonia udensis was first described by Ernst Rudolf von Trautvetter and Carl Anton von Meyer in 1856. The specific epithet udensis, which means "from the River Uda or the Uden district of Siberia", evidently refers to a region in the Russian Far East where the plant is known to occur., Plants of the World Online accepts the following infraspecific names:
The word alpina means "of upland or mountainous regions". Indeed, members of C. u. var. alpina are exclusively found above 32000NaN0 in the Himalayas.
Some authorities do not accept the above infraspecific names. The claim is that there are no morphological characters that consistently separate the two varieties.
Clintonia udensis is wide-ranging, from the Russian Far East to southeast Asia, extending east-west from the Kuril Islands in the Pacific Ocean to the Western Himalaya region.
C. u. var. alpina is found in the Himalayas (from Uttarakhand to Bhutan), Assam, northern Myanmar, and western China.