Grand Fir (Abies grandis) is a fir native to the Pacific Northwest of North America, occurring at altitudes of sea level to 1,800 m. It is a large evergreen coniferous tree growing to 40-70 m (exceptionally 80 m) tall and with a trunk diameter of up to 2 m. It was introduced to Britain during the 19th century.
Description[edit | edit source]
The leaves are needle-like, flattened, and grow in a single flat plane (this can help in distinguishing the species from other fir species),3-6 cm long and 2 mm wide by 0.5 mm thick, glossy dark green above, and with two green-white bands of stomata below, and slightly notched at the tip. The leaf arrangement is spiral on the shoot, but with each leaf variably twisted at the base so they all lie in two more-or-less flat ranks on either side of the shoot. The cones are 6-12 cm long and 3.5-4.5 cm broad, with about 100-150 scales; the scale bracts are short, and hidden in the closed cone. The winged seeds are released when the cones disintegrate at maturity about 6 months after pollination.