Recent books covering the flora of Washington admit only one species o
f Lesquerella, L. douglasii S. Watson, to the flora of the state. A di
fferent, undescribed species of this genus has been recognized from re
cent collections. The new species was first collected in 1883 but the
specimens from that gathering are incomplete and they were never appro
priately utilized. The new species is named L. tuplashensis and it is
compared with L. douglasii, its nearest relative.