Observation notes: Warm, sunny day, 70 degrees. Grassy opening along a seasonal creek and Poison Oak hillsides, mixed trees.
Verified by: Ken Davenport
Verified date: May 23, 2020
Coordinator notes: This ID is tentative. Andrew Warren's Oregon book was inconclusive about species status of chalcedona and colon, but said west of the Cascades pop[ulations included colon at subspecies status of chalcedona, which would be nominate colon the species. The distribution of the two species is problematic, I tend to accept colon as a species (I have wallacensis from the Umpqua River on the east side of the Cascades)-Ken Davenport