Thelypteris nevadensis
Encyclopedia
Thelypteris nevadensis is a species of fern
known by the common names Sierra marsh fern, Sierra wood fern, and Nevada marsh fern. It is native to western North America from British Columbia
to the mountains of northern California
, where it grows in moist wooded areas, streamsides, meadows, and seep
s. It is known from two locations in Idaho
, as well. Despite its name it is not found in Nevada
, rather, it was named for the Sierra Nevada, where it does occur in the northern mountains. It produces a dense cluster of long, feathery leaves which may be up to a meter long. It is rhizomatous
and it sometimes forms colonies. The leaves die back in winter. Each leaf is made up of leaflets lined with smaller segments. The undersides are glandular and resinous and sometimes hairy.
Fern
A fern is any one of a group of about 12,000 species of plants belonging to the botanical group known as Pteridophyta. Unlike mosses, they have xylem and phloem . They have stems, leaves, and roots like other vascular plants...
known by the common names Sierra marsh fern, Sierra wood fern, and Nevada marsh fern. It is native to western North America from 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 the mountains of 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 moist wooded areas, streamsides, meadows, and seep
Seep
A petroleum seep is a place where natural liquid or gaseous hydrocarbons escape to the earth's atmosphere and surface, normally under low pressure or flow. Seeps generally occur above either terrestrial or offshore petroleum accumulation structures...
s. It is known from two locations in Idaho
Idaho
Idaho is a state in the Rocky Mountain area of the United States. The state's largest city and capital is Boise. Residents are called "Idahoans". Idaho was admitted to the Union on July 3, 1890, as the 43rd state....
, as well. Despite its name it is not found in Nevada
Nevada
Nevada is a state in the western, mountain west, and southwestern regions of the United States. With an area of and a population of about 2.7 million, it is the 7th-largest and 35th-most populous state. Over two-thirds of Nevada's people live in the Las Vegas metropolitan area, which contains its...
, rather, it was named for the Sierra Nevada, where it does occur in the northern mountains. It produces a dense cluster of long, feathery leaves which may be up to a meter long. It is 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...
and it sometimes forms colonies. The leaves die back in winter. Each leaf is made up of leaflets lined with smaller segments. The undersides are glandular and resinous and sometimes hairy.