Lowland Hemlock, Pacific Hemlock, Western Hemlock
Tsuga heterophylla
Synonym: Abies heterophylla
![Lowland Hemlock, Pacific Hemlock, Western Hemlock: Tsuga heterophylla (Synonym: Abies heterophylla)](heterophylla/tsugahetcones.jpg)
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)](heterophylla/tsugahetlvsd.jpg)
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)](heterophylla/tsugahetlvsv.jpg)
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)](heterophylla/tsugahetcone.jpg)
A close-up of the cone of western hemlock.
The cones measure from 1.5-2.5 cm long.
Paul Slichter