Crataegus douglasii Lindl. var. rivularis (Nutt.) Sarg.
[= Crataegus rivularis]
Remarks: Confirmed by: S. J. Brunsfeld 1/22/81

Idaho: Gooding County: Malad River at US 26, 6 miles E of Bliss. Elev. 3000 ft.
42.864101° N, 114.882829° W,
Datum: WGS 84. Uncertainty: 4055 meters. Coordinate Source: Digital Map.
Habitat: narrow riparian fringe amongst lava rock. Slope: 0-5%; Exposure: open; Soil: lava rocks with sand. Riparian zone dominated by shrubby Salix exigua (to 15') with Acer negundo violaceum as the dominant tree, scattered in clumps. A few scattered Populus trichocarpa, Fraxinus pennsylvanica, Salix amygdaloides, Acer saccharinum. Shrubs include Crataegus douglasii, Rhus radicans, and Rosa woodsii. Adjacent uplands has Artemisia tridentata dominant with scattered Purshia tridentata. Notable is the absence of Elaeagnus angustifolia. Abundance (1-5): 2; Height: 8'; DBH: 2". Herbarium No.: 81075. Phenology: Fruits.

F. D. Johnson s.n., Aug 19, 1980
ID, Accession: 149758, Barcode: ID048028