Hackelia diffusa (Lehm.) I.M. Johnst. var. arida (Piper) R.L. Carr

Washington: Kittitas: Columbia Plateau: Gingko Petrified Forest State Park, SE end of Ryegrass Mountain, 1.2 miles W of Wanapum Road and 1.3 miles S of Interstate 90, 2.5 miles SSW of Vantage, 1.4 miles W of the Columbia River (Wanapum Lake). T17N R22E S36 NE4 NW4 SE4. Elev. 1530 ft
46.91893° N, 120.01305° W,
Datum: WGS84.
East-facing basalt talus slope below summit rim and basalt bedrock cliffs. Veg cover 30-40%, dominated by Pseudoroegneria spicata. With Bromus tectorum, Amsinckia tesselata, Eriogonum sphaerocephalum, and Stephanomeria. HerbariumSpecimenDuplicate: Hackelia diffusa var. arida Population has previously been reported as Hackelia diffusa var. diffusa; Flowers white with hairy yellow fornices that are wider than tall. Fruits with interrupted rim of prickles that are variable in size (alternating between long and short) and with hairy-prickly faces. Sporadic. Https://intermountainbiota.org/portal/collections/individual/index.php?occid=31319132. Phenology: Flowering & Fruiting.

Walter Fertig 34464, May 21, 2020
WS, Catalog: 400641, WS008897