Platanthera transversa (Suksd.) R.M. Bateman

Washington: Mason County: Olympic National Forest. Mt. Rose Trail. Elev. 531 m.
47.5003° N, 123.27106° W
Datum: WGS 84. Uncertainty: 10 meters. Coordinate Source: GPS.
Southeast-facing moss-covered basalt outcrop (bald) with Daucus pusillus Arctostaphylos uva-ursi, Polystichum imbricans, Arbutus menziesii, Arctostaphylos columbiana, and Pseudotsuga menziesii. In flower, tall beautiful spikes of green/white orchids. Plant stems up to 49 cm tall; leaves (strictly basal) mostly withered or absent; bracts along stem are green (to brown). Flowers: petals are green and white; sepals are one-nerved, with green interior shading to white perimeters; lip is 3.5 mm long; spur is 8-9 mm long, green at tip and white at base, straight and strongly bisecting the inflorescence rachis. Phenology: Flowers.

Joanne Schuett-Hames 2022-3, Aug 2, 2022
With Dave Schuett-Hames
WTU, Accession: 458501, Barcode: WTU-V-112034