Pool fir

pattern:deciduous trees, in the origin of the tall
25m; Bark brown, vertical cracking, growth strips fall off, branches upward, the crown is often narrow, sharp tower-shaped; Leaf multi-drilled, slightly inner curve, often in the branch spiral stretch, the lower part is more close to the small branch, the base extension, length 4 to 10mm, the first tip, the upper middle vein slightly bulging, there is a ridge below, each side has a pore line 2 to 4. A spherical or long round ball with a short terrier, sloping downwards, brownish-yellow when cooked. 2 to 4 cm long; seed irregular triangle, slightly flat, red-brown, 1.3 to 1 .8cm, sharp ridge at the edge. Flowering period 3 to April, the fruit 10 to November ripening.


Distribution: The

the southern United States, and is now cultivated in many cities in China.


Habits:

warm, moist and deep sub-acidic, slightly acidic soil. Strong positive, intolerant of shade, resistant to flooding, but also more drought-tolerant. Sensitive to alkaline soils, PH is at 7. More than 2 will occur leaf yellowing.