[The Hemlocks of Mt. Adams]

Lowland Hemlock, Pacific Hemlock, Western Hemlock

Tsuga heterophylla

Synonym: Abies heterophylla

Lowland Hemlock, Pacific Hemlock, Western Hemlock: Tsuga heterophylla (Synonym: Abies heterophylla)

The photo above shows the needles and cones of western hemlock as seen along forest road #23 above 3000' on the southwestern slopes of Mt. Adams.................October 14, 2005. The flattened leaves are largely 2-ranked on the sides of the twigs and are of unequal lengths. All photos on this page were taken at the same location.

Dorsal surface of needles of Lowland Hemlock, Pacific Hemlock, Western Hemlock: Tsuga heterophylla (Synonym: Abies heterophylla)

The photo above shows the greenish upper surface of the needles of western hemlock.

Ventral surface of the needles of Lowland Hemlock, Pacific Hemlock, Western Hemlock: Tsuga heterophylla (Synonym: Abies heterophylla)

The photo above shows the two broad rows of stomatal bloom on the underside of the needles of western hemlock.

Cone of Lowland Hemlock, Pacific Hemlock, Western Hemlock: Tsuga heterophylla (Synonym: Abies heterophylla)

A close-up of the cone of western hemlock. The cones measure from 1.5-2.5 cm long.

Paul Slichter