Agrostis rossiae | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Clade: | Commelinids |
Order: | Poales |
Family: | Poaceae |
Subfamily: | Pooideae |
Genus: | Agrostis |
Species: | A. rossiae |
Binomial name | |
Agrostis rossiae Vasey |
Agrostis rossiae, or Ross' bentgrass, is a species of perennial or annual grass that is endemic to the Firehole River drainage and Shoshone Geyser Basin of Yellowstone National Park. It is one of 3 endemic plants to the park.
Range
Endemic to the Firehole River drainage and Shoshone Geyser Basin of Yellowstone National Park.
Habitat and ecology
This plant only grows in the thermal water, where the combination of moisture and warmth create a natural greenhouse. Because of warmth of the ground soil, seeds tend to germinate in December or January, producing a green presence in thermal areas by late winter. Flowers tend to emerge in May or June, and by July the plants dead due to the heat from above and below.
Taxonomy
There are possibly two or three species of thermal bentgrasses that may be present in Yellowstone, but more research should be conducted before a taxonomic decision is made.
Conservation
This species is listed a G1 Critically Imperiled by NatureServe, primarily threatened by the encroachment of Agrostis scabra and recreational activities.
References
- "Agrostis rossiae Vasey". Global Biodiversity Information Facility. Retrieved 10 November 2024.
- "Lady Bird Johnson Wildflower Center - The University of Texas at Austin". www.wildflower.org. Retrieved 2024-11-09.
- Mountain-Prairie, USFWS (2002-05-31), Ross' bentgrass, retrieved 2024-11-09
- "Ross's Bentgrass - Yellowstone National Park (U.S. National Park Service)". www.nps.gov. Retrieved 2024-11-09.
- "Agrostis hesperica". iNaturalist. Retrieved 2024-11-09.
- Wagner, Jan (2024-07-29). "Yellowstone Wildlife". ArcGIS StoryMaps. Retrieved 2024-11-09.
- "Old Faithful Virtual Visitor Center". www.nps.gov. Retrieved 2024-11-09.
- Webmaster, Patrick O'Toole and David Ratz. "WY Field Guide". fieldguide.wyndd.org. Retrieved 2024-11-09.
- "NatureServe Explorer 2.0". explorer.natureserve.org. Retrieved 2024-11-09.
Taxon identifiers | |
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Agrostis rossiae |
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