Recognizing Hibernacula in Temperate Sundews: Normal Dormancy for Drosera Filiformis

Winter Resting Buds

The small green buds at the base are hibernacula—normal for D. filiformis in autumn. The plant will appear dead through winter, then re-emerge in spring, unfurling like a fern.

Early Dormancy Adaptation

Temperate sundews often go dormant early (late summer) as an adaptation to seasonal dryness. Southern forms (D. tracyi, Florida filiformis) stay active later.