Erythranthe microphylla (Benth.) G.L. Nesom
Annotated by Peter Dunwiddie.

Oregon: Gilliam County: East side of John Day River, ca. 2.3 miles above mouth at Columbia River.
UTM Zone 10, 686096E, 5065412N
Datum: WGS 84. Coordinate Source: Calc. from UTM.
Basalt rocky shoreline with short section of flowing water across the basalt. Frequent, growing in or very close to flowing water in basalt crevices. ¶ Flowers yellow, cleistogamous or opening, projecting generally to 6mm beyond the calyx. In open flowers, throat and lower petals densely hairy with small red dots. Stigma equal to or exceeding the anthers. Annual, stems mostly glabrous, middle and upper stem leaves perfoliate. Petioles and backside of leaves glabrous or puberulent. Most plants past flowering. Calyx puberulent, becoming glabrous in fruit. Prominant upper sepal tooth longer than lower, especially in fruit, two lower sepals recurved.

Peter Dunwiddie PWD-17-95A, May 10, 2017
With Stacy Kinsell
WTU, Accession: 445561, Barcode: WTU-V-103921