Inflorescence without involucral bracts. Callus not differentiated. Perianth present . Nectaries in bisexual flowers absent. Gynoecia superior, or partly inferior, or inferior.
Legume valves straight.
Arctic, or low arctic, or alpine. Range in the Canadian Arctic Archipelago wide-spread. Common, or rare, or uncommon. Ecology and habitat. These species he considered to have a vertical rhizome.