... sibirica, Poa alpina are the codominants. Forbs include Tripleurospermum ambiguum, Potentilla evestita ... Patrinia sibirica, Leiospora exscapa. Tundras with Dryas oxyodontha are occasional and tend to gentle gravel perma- frost ...
... Patrinia sibirica , Potentilla sergievskajae , Thy- mus dahuricus and Festuca litvinovii . The projective cover of most of them is not more than 1-2 % . These communities also include some slightly taller plants : Aconogonon ...