Scorpidium scorpioides (Hedw.) Limpr.

Montana: Missoula County: [locality and coordinates withheld; status in Montana: S2 (Imperiled; MTNHP)],
Topographic Position: broad saddle bottom. Hydrologic Regime: aquatic. Canopy Cover: trees 0%, shrubs 0%, herbs 20%. Slope: flat. General vegetation type: Calcareous marsh/meadow complex. Dominant associated plants: Carex lasiocarpa, Schoenoplectus acutus, Potamogeton gramineus, Triglochin maritima, Deschampsia cespitosa, Ranunculus flammula, Calliergon trifarium, Chara. Submerged in 1 to 30 inches of standing water among sedges and bulrush. Highly calcareous silt loam soil and water. Color: orange-brown, marly. Growth Habit: Sprawling dense mats. Many stems detached and floating. Abundance: common. Substrate: aquatic.

Craig T. Odegard 216, Aug 27, 2013
WTU, Barcode: WTU-B-076646