Endangered and Threatened Wildlife and Plants; The Plant, Water Howellia (Howellia Aquatilis), Determined To Be a Threatened Species

摘要

The U.S. Fish and Wildlife Service (Service) determines Howellia aquatilis (water howellia) a wetlands plant, to be a threatened species. Populations of H. aquatilis are extant in Montana, Washington, and Idaho, but this aquatic plant has bee extirpated from California, Oregon, and some sites in Washington and Idaho. The species is threatened by loss of wetland habitat and habitat changes due to timber harvesting, livestock grazing, residential development, and competition by introduced plant species. Listing H. aquatilis will afford this species protection under the Endangered Species Act of 1973, as amended.