Images of the Canadian Hemlock (Tsuga canadensis)

Canadian Hemlock

Tsuga canadensis

Also known as Eastern Hemlock, this large coniferous tree is native to eastern North America. Typically this species grows to over 30 m in height, with trunks covered by thick cinnamon-brown bark with broad, scaly ridges. The sap-sucking bug Adelges tsugae, accidentally introduced from Asia in 1924, is currently destroying most of the Canadian Hemlock trees in the United States.

Habitat:Swamp borders, valleys, ravines, rocky ridges, moist mountain slopes.

Growth Habit:Evergreen tree, growing up to 30 m tall or higher.

Bloom Time:Mid-spring.

Longevity:Long-lived.

Presence in US:AL CT DC DE GA IN KY MA MD ME MI MN MO NC NH NJ NY OH PA RI SC TN VA VT WI WV

Presence in Canada:NB NS ON PE QC

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This project was supported in part by NSF Grant IIS-03-25867 (ITR: An Electronic Field Guide: Plant Exploration and Discovery in the 21st Century) and by the Washington Biologists' Field Club.

Any opinions, findings, conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the official views, opinions, or policy of the National Science Foundation (NSF).