Sparganium hyperboreum Beurl. ex Laest.
Annotated by Matthew Carlson, 25 Jul 2019.

Alaska: Atka Island, west of old village. Hills ca. 0.5 km west of old village. Jurisdiction: USFWS Refuge. Elev. 290 m.
52.17193° N, 174.2215° W
Datum: NAD 83. Coordinate Source: GPS.
Sideslope, creek margin, W aspect, 10-20 deg. slope; mesic forb-graminoid meadow, Veg. cover: 100%, moist loamy soil; rare. Assoc. spp.: with Carex macrochaeta, Rubus arcticus, Primula cuneifolia ssp. cuneifolia, Micranthes nelsoniana, Carex nigricans.

Matthew Carlson MLC-2019-133, Jul 25, 2019
With T.W. Nawrocki
UAAH, Accession: 14366