Howellia aquatilis
Howellia aquatilis, the water howellia, is a small plant in the family Campanulaceae and was considered a threatened species between 1994 and 2024. It is the only species in the monotypic genus Howellia. Thomas Jefferson Howell and Joseph Howell discovered the species in 1878. Meer weergeven The water howellia is found in large area of the Pacific Northwest region of the United States. It can be found in California, Idaho, Montana, and Washington, and it is known historically from Oregon. The plant … Meer weergeven The plant produces two types of flowers. Submerged cleistogamous flowers remain closed and self-pollinate, and flowers that bloom above the surface of the water open into white blossoms and may cross with other individuals. Because it often pollinates … Meer weergeven • USDA Plants Profile Meer weergeven Threats to this species include loss of habitat to logging and draining and conversion to urban use, alteration of the local hydrology by placement of dams and dikes, deposition of silt, livestock activity, introduced species of plants, low genetic diversity, … Meer weergeven WebHOWELLIA AQUATILIS (Water Howellia) RECOVERY PLAN . Prepared by: J. Stephen Shelly . Montana Natural Heritage Program/U.S. Forest Service Missoula, Montana . John Gamon . Washington Natural Heritage Program Olympia, Washington . Prepared for: U.S. Fish and Wildlife Service 100 N. Park Ave., Suite 320 Helena, Montana 59601 . January …
Howellia aquatilis
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WebIn Washington, water howellia currently comprises 33% of the rangewide total. This species occurs in Spokane, Clark, and Pierce counties. Water howellia is known from the … WebHowellia aquatilis, the water howellia, is a small plant in the family Campanulaceae and was considered a threatened species between 1994 and 2024.[1] It is the only species in the monotypic genus Howellia.[2] Thomas Jefferson Howell and Joseph Howell discovered the species in 1878.[3]
Web24 dec. 2024 · Howellia aquatilis in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2024 Aug. 02. … WebPOPULATION AND HABITAT MONITORING OF WATER HOWELLIA (HOWELLIA AQUATILIS) AT THE HARVARD–PALOUSE RIVER FLOOD PLAIN SITE, IDAHO: FIFTH-YEAR RESULTS . Idaho Conservation Data Center Idaho Department of Fish and Game PO Box 25 Boise, Idaho Juanita Lichthardt 83707 Karen Gray . 2004 .
Webadversely impacts water howellia populations. We hypothesized that water howellia persists in certain wetlands because habitat conditions are less favorable to reed canarygrass than in other wetlands. To test this hypothesis we located seven wetlands with water howellia and six without howellia that had dominant reed canarygrass stands. WebGeographic subdivisions for Howellia aquatilis: NCoRH : MAP CONTROLS 1. You can change the display of the base map layer control box in the upper right-hand corner. 2. County and Jepson Region polygons can be turned off and on using the check boxes.
WebHowellia aquatilis Gray: Encyclopedia of life: Howellia aquatilis Gray: Integrated Taxonomic Information System: Howellia aquatilis: PLANTS Database (USDA/NRCS) Howellia aquatilis: Plants of the World Online: Howellia aquatilis: The International Plant Names Index: Howellia aquatilis A. Gray: USDA-ARS GRIN Taxonomy: search …
WebHowellia aquatilis (water howellia) is a small plant in the family Campanulaceae and is considered to a threatened species since 1994. It is the only species in the monotypic … how much are postcard stamps todayWebHowellia aquatilis, the water howellia, is a small plant in the family Campanulaceae and was considered a threatened species between 1994 and 2024.[1] It is the only species in … how much are postage stamps right nowWebHowellia es un género monotípico de plantas perteneciente a la familia Campanulaceae. Su única especie: Howellia aquatilis A.Gray, Proc. Amer. Acad. Arts 15: 43 ,[1] es originaria del noroeste de los Estados Unidos hasta California.[2] how much are postersWeb25 feb. 2004 · Water Howellia (Howellia aquatilis) is a rare and endangered wetland plant listed as a threatened species under the Federal Endangered Species Act. 70… how much are postcardsWeb16 jun. 2024 · Start Preamble AGENCY: Fish and Wildlife Service, Interior. ACTION: Final rule. SUMMARY: We, the U.S. Fish and Wildlife Service (Service), are removing water howellia (Howellia aquatilis) from the Federal List of Endangered and Threatened Plants.The best available scientific and commercial data indicate that threats to water … how much are postcards to mailWebHowellia aquatilis is an annual aquatic plant of ephemeral ponds. It is considered extirpated or endangered throughout its range in the United States Pacific Northwest. I … how much are postmen paidWebHowellia plants begin producing underwater cleistogamous flowers (flowers that self- fertilize without opening) soon after the plants begin growing in the spring, by early April to early … photon distinguishability