Luxuriant and Powerful Tree - Pinus Massoniana

马尾松（学名：Pinus massoniana Lamb.）是松科，属乔木，高可达45米，胸径1.5米；树皮红褐色，枝平展或斜展，树冠宽塔形或伞形，枝条每年生长一轮（广东两轮）。冬芽卵状圆柱形或圆柱形，针叶，细柔，微扭曲，两面有气孔线，边缘有细锯齿，叶鞘宿存。雄球花淡红褐色，圆柱形，聚生于新枝下部苞腋，穗状，雌球聚生于新枝近顶端，淡紫红色，种子长卵圆形，4-5月开花，球果第二年10-12月成熟。马尾松木材极耐水湿，有“水中千年松”之说，特别适用于水下工程。也是中国主要产脂树种，松香是许多轻、重工业的重要原料，主要用于造纸、橡胶、涂料、油漆、胶粘等工业。

Pinus Massoniana (Scientific Latin Name: Pinus massoniana Lamb.) is a tree in the family Pinaceae. It can reach 45 m in height and 1.5 m in diameter at breast height; reddish-brown bark, flat or slanted branches growing once a year (twice in Guangdong), and wide crowns like a tower or umbrella. Buds in winter are ovoid cylindrical or cylindrical, soft needle-like leaves are slightly twisted with stomatal lines on both sides and jagged edges. When the sheath withers, the calyx doesn’t fall off but continues to develop along with the fruit. Pale reddish-brown male bulbs are cylindricalspikelets, clustered in the bract axils of the lower parts of young branches, while lavender red female bulbs are clusterednear the top of young branches. The seeds are oval in shape, flowering in April - May and ripening in October - December the following year. The wood is extremely resistant to water and humidity, which is said to be "pine in the water for thousands of years", especially suitable for underwater engineering.It is also the main resin-producing tree species in China. Rosin is an important raw material for many light and heavy industries, mainly used in papermaking, rubber, coating, paint, adhesive and other industries.