Glyceria leptostachya
Encyclopedia
Glyceria leptostachya is a species of mannagrass
known by the common names davy mannagrass and narrow mannagrass. It is native to western North America from Alaska
to California
, where it grows in wet places such as riverbanks.
This rhizomatous
perennial grass produces narrow stems approaching a maximum height of 1.5 meters. The leaves may be flat or rolled along the edges and they have ligule
s up to a centimeter long. The inflorescence
is narrow and compact, bearing spikelets parallel to the stem instead of spreading outward. Each spikelet is one to two centimeters long and contains up to 14 or 15 florets with membranous margins.
Glyceria
Glyceria is a genus of grasses known commonly as mannagrass or, as referred to in the UK, sweet-grass. These are perennial rhizomatous grasses found in wet areas in temperate regions worldwide. The base of the grass grows along the ground and may root at several places. Then it grows erect and...
known by the common names davy mannagrass and narrow mannagrass. 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...
to 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 wet places such as riverbanks.
This 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 grass produces narrow stems approaching a maximum height of 1.5 meters. The leaves may be flat or rolled along the edges and they have ligule
Ligule
A ligule — is a thin outgrowth at the junction of leaf and leafstalk of many grasses and sedges or a strap-shaped corolla, such as that of a ray floret in plants in the daisy family....
s up to a centimeter long. 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 narrow and compact, bearing spikelets parallel to the stem instead of spreading outward. Each spikelet is one to two centimeters long and contains up to 14 or 15 florets with membranous margins.