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Where is my nanmu tree?
Not bad, envy! What about the national second-class protected plants?

nanmu

Nanmu, also known as Nanmu and Nanmu, is a general term for various species of Lauraceae, including Nanmu, Jin Sinan, Nanmu and Phoebe bournei. It is a big tree, which can reach 30 meters when it matures. Its wood is hard and expensive, and it is mostly used in shipbuilding and palaces. The largest Nanmu Temple in existence is Ling 'en Temple in the Ming Tombs. There are 60 huge columns in the hall, all made of a whole golden nanmu. Nanmu is extremely precious and has been listed in the list of national key protected wild plants in China.

Basic information

Chinese name

nanmu

scientific name

Phoebe town people. Li yifuwei

Another name

Zhennan (Chengdu), Yanan (China Tree Taxonomy) Nanshu.

boundary

plant kingdom

door

Vascular endothelial cell

summary

Magnolia

subclass

Primitive perianth subclass

eye

magnoliaceae

The branch of academic or vocational research.

Lauraceae (Latin scientific name Lauraceae)

belong to

Runnan

Distribution area

Western Hubei, Northwest Guizhou and Sichuan

taxonomy system

Engler system, 1964.

Protection level

National second-class protected plants

Morphological characteristics:

Big tree, more than 30 meters high, with straight trunk. Bud pulp is grayish yellow and clings to long hair. Branchlets are usually thin, angular or nearly cylindrical, and are grayish yellow or grayish brown villous or pubescent. The leaves are leathery, oval, mostly lanceolate or oblanceolate, 7- 1 1( 13) cm long and 2.5-4 cm wide, with a tapered tip, straight or sickle shape, a wedge-shaped base and a blunt or sharp tip. The top is bright and hairless or hairy along the lower half of midvein, and the bottom is densely pubescent. Obliquely extending, the upper part is not obvious, the lower part is obvious, close to the reticular edge, gradually disappearing, the lower transverse vein is slightly obvious or not obvious, the venules are almost invisible, and there is no grid with the transverse vein or few fuzzy small grids; Petiole thin, 1-2.2 cm long, hairy.

Thyme cymes are very stretched and hairy, (6) 7.5- 12 cm long, slender, branched above the middle, the lowest branch is usually 2.5-4 cm long, and each umbel has 3-6 flowers, usually 5; The flower is medium-sized, 3-4 mm long, and the pedicel is as long as the flower; Tepals are about the same size, 3-3.5 mm long and 2-2.5 mm wide. The outer wheel is ovoid, the inner wheel is ovoid, the apex is blunt, both sides are grayish yellow or pubescent, and the inner surface is dense. The first and second loops are about 2 mm long, and the third loop is 2.3 mm long, both of which are hairy. In the third circle, the basal glands of filaments are sessile, and the staminodes are triangular, stipitate and hairy. Ovary globose, glabrous or puberulent in upper part with style and discoid stigma.

The fruit is oval, with a length of1.1-1.4cm and a diameter of 6-7mm; The fruit stalk is slightly thicker; Persistent tepals ovate, leathery and clingy, pubescent on both surfaces or puberulent outside. The flowering period is April-May, and the fruiting period is 9-65438+1October. ? [ 1]