Valeriana sitchensis
Encyclopedia
Valeriana sitchensis is a species of valerian
Valeriana
Valeriana is a genus of flowering plants in the family Valerianaceae. It includes a number of species of which the best known is the garden valerian Valeriana officinalis...

 known by the common name Sitka valerian. It is native to northwestern North America from Alaska
Alaska
Alaska is the largest state in the United States by area. It is situated in the northwest extremity of the North American continent, with Canada to the east, the Arctic Ocean to the north, and the Pacific Ocean to the west and south, with Russia further west across the Bering Strait...

 and northern Canada to Montana
Montana
Montana is a state in the Western United States. The western third of Montana contains numerous mountain ranges. Smaller, "island ranges" are found in the central third of the state, for a total of 77 named ranges of the Rocky Mountains. This geographical fact is reflected in the state's name,...

 to northern California
California
California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

, where it grows in many types of habitat, including moist mountain forests. In moist subalpine meadows, it is often one of the most common plants. This is a rhizomatous
Rhizome
In botany and dendrology, a rhizome is a characteristically horizontal stem of a plant that is usually found underground, often sending out roots and shoots from its nodes...

 perennial herb producing a stout, erect stem to about 70 centimeters in maximum height, but known to exceed one meter at times. The leaves vary in size and shape, often having deep lobes or being composed of several leaflets. The inflorescence
Inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Strictly, it is the part of the shoot of seed plants where flowers are formed and which is accordingly modified...

 is a cyme of many white or pink-tinged flowers, each under a centimeter wide. The flower has five corolla lobes and three whiskery stamen
Stamen
The stamen is the pollen producing reproductive organ of a flower...

s protruding from the center.

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