Pseudotsuga Carrière

Douglas Fir

Greek pseudo - false, tsuga - Hemlock.

Conical, evergreen, resinous trees. Branches in irregular whorls. Buds narrowly pointed like those of the Beech, hairless and without resin. Leaves linear, single, spirally arranged and sometimes bent to form two ranks, grooved above, two pale bands below. Male and female cones on the same tree. Male cones solitary, axillary, catkin-like. Female cones terminal on short branches, pendulous, not breaking up at maturity, maturing in one year; scales with three-pronged bracts. Seeds winged, 2 per scale.

4 species from W North America & S Japan, SW China and Taiwan.

Cones similar in appearance to those of Picea, spruce and Tsuga, Hemlock, pendulous but with distinctive 3-pronged bracts protruding from the scales.

Little (1952).

Source: Spencer, R. (1995). Pinaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 1, Ferns, conifers & their allies. The identification of garden and cultivated plants. University of New South Wales Press.

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kingdom Plantae
phylum   Tracheophyta
class    Pinopsida
order     Pinales
family      Pinaceae
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