Conservation Agreement for Puccinellia howellii: National Park Service, Whiskeytown National Recreation Area
National Park Service. 2005. Conservation Agreement for Puccinellia howellii: National Park Service, Whiskeytown National Recreation Area. National Park Service, Klamath Network. Ashland, Oregon
Puccinellia howellii (Howell’s alkali grass) is a shortlived, perennial, obligate wetland alkali grass that is found in a complex of mineral springs along California State Highway 299 West, in Shasta County, California. P. howellii was recognized as a distinct species in 1990. No additional populations have been identified anywhere else to date. The springs are of considerable importance to wildlife and have been listed by the State of California as a Significant Natural Area (SHA41). The P. howellii population occurs on land owned by the State of California and the United States of America, largely within the California Department of Transportation (Caltrans) right-of-way in Whiskeytown National Recreation Area, a unit of the National Park Service (NPS).