Question: Antennaria stenophylla is a North American species of flowering plants in the daisy family known by the common name narrowleaf pussytoes, it is native to which location, the largest area of contiguous endorheic watersheds in North America?
Context: Antennaria corymbosa is a North American species of flowering plants in the daisy family known by the common name flat-top pussytoes or meadow pussytoes.  It is native to western Canada (British Columbia, Alberta, Saskatchewan) and the Western United States south as far as Tulare County in California and Rio Arriba County in New Mexico.  It grows in moist, cool areas such as mountain meadows and riverbanks.  Most of the populations are found in the Rocky Mountains, the Cascades, and the Sierra Nevada. Antennaria dimorpha is a North American species of flowering plants in the daisy family known by the common name low pussytoes or gray cushion pussytoes.  It is native to western Canada (British Columbia, Alberta, Saskatchewan) and the western United States as far south as Riverside County in California and Rio Arriba County in New Mexico.  It is generally found in dry areas.  There are historical records of the species formerly occurring in northwestern Nebraska, but these populations appear now to be gone. Antennaria stenophylla is a North American species of flowering plants in the daisy family known by the common name narrowleaf pussytoes.  It is native to the Great Basin, Columbia Plateau, and Snake River Plain of the Western United States, in the States of Washington, Oregon, Idaho, Nevada, and Utah. Antennaria rosulata is a North American species of flowering plant in the daisy family known by the common name Kaibab pussytoes or woolly pussytoes.  It is native to the Southwestern United States, in the states of Arizona, New Mexico, Colorado, and Utah. Antennaria luzuloides is a North American species of flowering plants in the daisy family known by the common name rush pussytoes.  The species is native to western Canada (Alberta, British Columbia) and the western United States (Oregon, Washington, northern California, Idaho, Montana, Nevada, Utah, Colorado, Wyoming, and a few isolated populations in South Dakota). Antennaria pulchella is a North American species of flowering plants in the daisy family known by the common names Sierra pussytoes and beautiful pussytoes.  It is native primarily to high elevations in the Sierra Nevada from Nevada County to Tulare County, where it is a plant of the alpine climate.  Additional populations occur on Lassen Peak in Lassen County, and also in Washoe County, Nevada. Antennaria umbrinella is a North American species of flowering plants in the daisy family known by the common names umber pussytoes and brown pussytoes.  It is native to southwestern Canada (Saskatchewan, Alberta, British Columbia) and the western United States as far south as Colorado, Coconino County in Arizona, and Tulare County in California).  It grows in a variety of habitats at a variety of elevations, from lowland sagebrush steppe to subalpine meadows. Antennaria flagellaris is a North American species of flowering plants in the daisy family known by the common names whip pussytoes and stoloniferous pussytoes.  It is native primarily to the Great Basin and Columbia Plateau regions of Washington, Oregon, Idaho, and northern Nevada (Elko County), where it is a member of the sagebrush scrub plant community.  Additional populations are found in northeastern California (Lassen + Modoc Counties), Wyoming (Park + Teton Counties), the Black Hills of South Dakota (Custer County), and the Canadian Province of British Columbia. The Great Basin is the largest area of contiguous endorheic watersheds in North America.  It spans sections of Wyoming, Idaho, Utah, Nevada, Oregon, California and the Mexican state of Baja California.  It is noted for both its arid climate and the basin and range topography that varies from the North American low point at Badwater Basin to the highest point of the contiguous United States, less than 100 mi away at the summit of Mount Whitney.  The region spans several physiographic divisions, biomes/ecoregions, and deserts. Antennaria geyeri is a North American species of flowering plant in the daisy family known by the common name pinewoods pussytoes or mountain pussytoes.  It is native to the western United States where it grows in woodland and scrub very often on the forest floor under pine trees.  It is found in Washington, Oregon, northern California, and northwestern Nevada.
Answer: Great Basin