The smallest of the twayblades, this species is quite common in low to middle elevation forests throughout the Park. The flower has a long, forked "lip", a distinguishing field mark. The leaves are heart-shaped and borne opposite on the stem; the common name is derived from this feature.
Location: Sunshine Point, Mount Rainier National Park
Date: April 29, 2014
Although most plants have greenish leaves, some are reddish, as seen in this photo taken at Longmire.
Location: Longmire, Mount Rainier National Park
Date: July 10, 2014