Search results
Results from the WOW.Com Content Network
In contrast to spruces, fir cones are erect; they do not hang, unless heavy enough to twist the branch with their weight. The mature cones are usually brown. When young in summer, they can be green: A. grandis, A. holophylla. or reddish: A. alba, A. cephalonica, A. nordmanniana. or bloomed pale glaucous or pinkish: A. numidica, A. pinsapo
The male cones are 2–3 cm (3 ⁄ 4 – 1 + 1 ⁄ 4 in) long, and are typically restricted to, or more abundant on, lower branches. Pollen cones develop over 1 year and wind-dispersed pollen is released for several weeks in the spring. Rocky Mountain Douglas-fir cones Left: Shuswap Lake, British Columbia, Canada
The Douglas squirrel harvests and hoards great quantities of Douglas-fir cones, and also consumes mature pollen cones, the inner bark, terminal shoots, and developing young needles. [13] Mature or "old-growth" Douglas-fir forest is the primary habitat of the red tree vole (Arborimus longicaudus) and the spotted owl (Strix occidentalis).
Fraser fir is monoecious, meaning that both male and female cones occur on the same tree. [11] Cone buds usually open from mid-May to early June. Female cones are borne mostly in the top few feet of the crown and on the distal ends of branches. Male cones are borne below female cones, but mostly in the upper half of the crown.
The crown of the China Fir forms a pyramidal shape. The bark color typically ranges from dark gray to dark browns. [8] Foliage consist of spiral leaf arrangements of green lanceolate shaped leaves. [9] Male cones form in clusters of 10 to 30 while female cones form in clusters of 2 to 3. Seed cones are small and almost unnoticeable when first ...
The cones are 8–17 cm (3– 6 + 1 ⁄ 2 in) long and 4–6 cm (1 + 1 ⁄ 2 – 2 + 1 ⁄ 4 in) broad, dark purple before maturity; [4] [5] the scale bracts are short, and hidden in the closed cone. The brownish winged seeds are 3.5 mm (1 ⁄ 8 in) long [4] and released when the cones disintegrate at maturity about 6–7 months after pollination.
Pseudotsuga macrocarpa, commonly called the bigcone spruce or bigcone Douglas-fir, is an evergreen conifer native to the mountains of southern California. It is notable for having the largest (by far) cones in the genus Pseudotsuga , hence the name.
The scale bracts are hidden under the cone scales. The seeds, 8–9 mm (5 ⁄ 16 – 3 ⁄ 8 in) long with a wedge-shaped wing 1.5 cm (5 ⁄ 8 in) long, are released after the cones disintegrate at maturity in October. Manchurian fir is sometimes, but not commonly, used as an ornamental plant. [1]