Trisetum canescens
Encyclopedia
Trisetum canescens is a species of grass
known by the common name tall trisetum. It is native to western North America from Alaska
and British Columbia
to central California
and Arizona
, where it occurs in forests, mountain meadows, and streambanks, being most common among Ponderosa pines and stands of spruce
and fir
. It is a perennial grass forming clumps of erect stems up to 50 to 80 centimeters tall, but known to exceed one meter. There are three to four leaves per stem, the blades reaching up to 30 centimeters in length. The sheaths can be hairless to quite hairy, the hairs sometimes long and shaggy. The inflorescence
is an open or compact panicle
of green, tan, or purplish spikelets up to 20 centimeters long.
Poaceae
The Poaceae is a large and nearly ubiquitous family of flowering plants. Members of this family are commonly called grasses, although the term "grass" is also applied to plants that are not in the Poaceae lineage, including the rushes and sedges...
known by the common name tall trisetum. It is native to western 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 British Columbia
British Columbia
British Columbia is the westernmost of Canada's provinces and is known for its natural beauty, as reflected in its Latin motto, Splendor sine occasu . Its name was chosen by Queen Victoria in 1858...
to central 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...
and Arizona
Arizona
Arizona ; is a state located in the southwestern region of the United States. It is also part of the western United States and the mountain west. The capital and largest city is Phoenix...
, where it occurs in forests, mountain meadows, and streambanks, being most common among Ponderosa pines and stands of spruce
Spruce
A spruce is a tree of the genus Picea , a genus of about 35 species of coniferous evergreen trees in the Family Pinaceae, found in the northern temperate and boreal regions of the earth. Spruces are large trees, from tall when mature, and can be distinguished by their whorled branches and conical...
and fir
Fir
Firs are a genus of 48–55 species of evergreen conifers in the family Pinaceae. They are found through much of North and Central America, Europe, Asia, and North Africa, occurring in mountains over most of the range...
. It is a perennial grass forming clumps of erect stems up to 50 to 80 centimeters tall, but known to exceed one meter. There are three to four leaves per stem, the blades reaching up to 30 centimeters in length. The sheaths can be hairless to quite hairy, the hairs sometimes long and shaggy. 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 an open or compact panicle
Panicle
A panicle is a compound raceme, a loose, much-branched indeterminate inflorescence with pedicellate flowers attached along the secondary branches; in other words, a branched cluster of flowers in which the branches are racemes....
of green, tan, or purplish spikelets up to 20 centimeters long.