Erica tetralix, the cross-leaved heath, is a species of flowering plant in the family Ericaceae, native to western Europe.

Appearing in summer and autumn, small pink bell-shaped flowers droop in compact clusters at the ends of the shoots.

Calluna vulgaris has much smaller and scale-like leaves in opposite and decussate pairs.

E. tetralix can become a dominant part of the flora in bogs, wet heaths, and damp coniferous woodland.

[3] A species of Trialeurodes whitefly discovered in 1971 was named T. ericae for the plant, due to its frequent association with it.