Rumex triangulivalvis (Danser) Rech.f.
[= Rumex salicifolius var. triangulivalvis]
Annotated by Trista Crook, 22 Dec 2022. Sources: FPNW, 2nd Ed..

Idaho: Caribou County: Caribou-Targhee National Forest. Approximately 13 air km (8 air mi) NE of Inkom. About 12 road km (7.5 road mi) NE along E Inman Rd/FSR018. About 2.5 road km (1.5 road mi) SE of Inman Pass. About 10-113 m S of FSR018. Ponds along S Fork Toponce Creek. Elev. 6330 ft.
42.848523° N, 112.108817° W
Datum: NAD 83. Uncertainty: 10 meters. Coordinate Source: GPS.
Marsh and wet shrubland with ponds dominated by Salix spp. and various sedges and grasses. Extensive cattle disturbance. On weedy island in pond with Cirsium arvense, Urtica, Ranunculus, Carduus nutans, Lactuca serriola.¶ No basal rosette. About 70.5 cm tall. Herbage mostly glabrous. Leaves lanceolate to elliptic, with dots, bases cuneate. Ocreae brown. Tepals 6, 1.5-2 mm wide and 3 mm long, margins entire and wavy without prominent veins, ovate to broadly triangular. All 3 tepals with grain, grains similar size. Achene trigonous. Phenology: Flowers & Fruits.

Trista Crook 221, Jul 24, 2021
IDS