This is a 40-120 cm tall perennial with a shortened rootstalk and rooting prostrate long and curving surface shoots. Spikes 4-6 mm long are seated individually on the blossom’s twigs. These are its principal differences from the wood club-rush.
It grows mainly in the non-chernozem belt along shores and bog edges, in swamped meadows and woods. It flowers in June-July.
This rare species is red-listed in Latvia, Estonia and the Leningrad Region.
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