Floral bracts apex entire, or lacerate. Callus not differentiated. Perianth present . Nectaries in bisexual flowers absent. Stigmas per style 3.
Legume valves straight.
Styles style may persist until dehiscence but is not modified. Circumpolar, or amphi-Atlantic, or North American. Arctic, or low arctic. Range in the Canadian Arctic Archipelago wide-spread, or limited. Common, or uncommon, or rare.