Isoetes howellii Engelm.

Washington: Stevens County: Colville National Forest. Mt. Rogers pond, next to Trail #131. Take Aladdin Rd. north from Colville to the Kolle Ck. [creek] Rd., and follow up to the south trailhead. Walk about 1.5 mi. to pond site on downhill side of trail. Elev. 5040 ft.
T37N R40E S10 NENW
Datum: WGS 84. Uncertainty: 2000 meters. Coordinate Source: Digital Map.
Very uncommon. Bottom of seasonal pond,about 1/2 acre at its largest extent, dry now, with peaty substrate. Associated spp.; next ring, Carex vesicaria, third ring, C. Saxatilis, others: Aster foliaceus var. apricus, Botrychium multifidum, Veronica americana, V. scutellata, V. serpyllifolia, Rorippa curvisiliqua, Epilobium glandulosum, Carex arcta, Salix sitchensis, Potentilla norvegica.

Linda Swartz 517, Sep 8, 1998
WTU, Accession: 411662, Barcode: WTU-V-026159