Cicuta douglasii (DC.) J.M. Coult. & Rose
Annotated by Gordon S. Whitehead, 2 Aug 1977. Sources: FPNW.

Idaho: Fremont County: Site 49. Targhee National Forest. Robinson Creek near its confluence with Bear Creek; Elevation 1680m. Elev. 1680 m.
44.1289994° N, 111.2384605° W; T9N R44E S3 SE 1/4
Datum: WGS 84. Uncertainty: 500 meters. Coordinate Source: BioGeomancer.
Open streambanks often in disturbed areas. Associated with Actaea rubra, Urtica dioica and Rubus idaeus; or with Rorippa nasturtim-aquaticum, Glyceria grandis, Carex stipata and Salix spp. This is an extremely poisonous plant. Two field characteristics generally serve to distinguish it from related non-poisonous plants for which it might be mistaken. The main veins of the leaves terminate at the notches of the leaf serrations and the base of the stem is thickened and hollow with numerous transverse partitions separating the hollow part into narrow cells. The partitions and cells are easily seen if the stem base is split lengthwise with a knife. Voucher: Whitehead, G.S. 1983. M.S., Idaho State U. Flora of the Island Park Geothermal Study Area. Duplicates to: IDS, RM. Phenology: Vegetative.

Gordon S. Whitehead 854b, 8/2/1977
IDS, Accession: 2012.012, Barcode: IDS0017824