Number 68 September 17, 2020 The Vascular Plants of Lake Roberts, Gila National Forest, Grant County, New Mexico Kelly Kindscher Kansas Biological Survey, University of Kansas; email:
[email protected] Introduction Lake Roberts is a unique, man-made lake created in 1963 in southwestern New Mexico. Created by damming Sapillo Creek, on Gila National Forest property (latitude and longitude: 33.03100, 108.16200, elevation: 6,064 ft = 1843 m), This 70-acre (28 hectare) lake is managed by the State of New Mexico as a fishing lake. The area immediately around it attracts people fish, camp, bird watch, and hike on local trails. It also has a diverse flora (457 species documented here) and is known for its seasonal wildflowers. A comprehensive list of the common and rare Lake Roberts vascular plant flora has been created, and habitat descriptions are provided. This information has been created for both the interested public and botanists. Physical Setting and Vegetation The Sapillo Creek watershed that feeds Lake Roberts is approximately 173 sq. mi (450 sq km) and drains from the Continental Divide in the east, from the Pinos Altos Range to the south, and from the Gila Wilderness to the north. The watershed includes a small portion of the Aldo Leopold Wilderness in the northeast, which contains the highest point in the watershed (Rocky Point at 9,012 ft (over 2,700 m). While Sapillo Creek is intermittent above the lake, springs within the lake allow it to be perennial downstream. Although the watershed is mostly US Forest Service wilderness and roadless area, the creek and lake are impacted by historic and current land uses.