1. The tree height is different.

The height of five-pointed maple can reach 20 meters; Acer truncatum Bunge is relatively short, and the maximum length can be about13m, so the tree vigor is weak.

2. Different blades

Both of them are opposite leaves with palmately split leaves. The leaves of Acer mono are nearly oval in appearance, often 5-lobed, sometimes 3-lobed and 7-lobed leaves are born on the same tree, and 5 lobules are entire; Most leaf bases are heart-shaped.

Acer truncatum palmately 5-lobed, with the apex of lobes acuminate, and sometimes the middle lobe or the middle lobe is 3-lobed again; The base of leaf blade is mostly truncated, and the lowest two lobes sometimes spread downward.

3. Flowers are different

Five-pointed maple petals 5, pale white, oval or oval obovate, flowering in May; Acer truncatum flowers are small and yellow-green, and they form terminal cymes. In April, flowers and leaves bloom together.

4. Different fruits

They are all flat samara. The Zhang Kaicheng of the two wings of Acer truncatum fruit is acute or nearly obtuse; Acer truncatum fruit wings spread slightly at right angles.

Extended data:

1. Economic value of Acer truncatum Bunge

Wood is hard, and it is an excellent material for architecture, furniture, sculpture and joinery. Bark fiber can be used to make paper and replace cotton.

Acer truncatum Bunge has a wide range of uses, and the whole tree is a treasure, mainly in the following aspects:

(1) New resources of high-quality edible oil

Its seed particles are large and its oil content is high. The oil content of Acer truncatum kernel is 48%, and the oil extraction rate is 35%, which is higher than that of rapeseed. Acer truncatum Bunge is a semi-drying oil containing oleic acid and linoleic acid, in which linoleic acid and linolenic acid are as high as 53%, and its oil quality is excellent, which is rare in edible vegetable oil.

(2) High quality new resources in protein.

Acer truncatum seed kernel contains 25%-27% of protein and contains no starch, which is rare in plant seed. After oil is extracted from seed kernel, oil meal is a good edible protein. According to the determination, protein of Acer truncatum contains 9 kinds of amino acids necessary for human body, which belongs to protein. The quality food made is delicious and is an ideal resource in protein.

2. The main value of pentagram

Five-pointed maple has many uses, its bark fiber is good, and it can be used as raw material for artificial cotton and papermaking. Its leaves contain tannin, and its seeds are used for oil extraction, which can be used for industrial purposes as well as food, and its wood is fine. It can be used for manufacturing buildings, vehicles, musical instruments and plywood.

It can adsorb smoke and harmful gases, secrete volatile bactericidal substances and purify the air. Its bark is grayish brown or dark gray, with opposite leaves, split leaves, terminal inflorescence, flowers and leaves in the same place, beautiful tree posture and changeable leaf color, which is an excellent greening tree species in urban and rural areas. Its tree has a large water content, but a small oil content, and its litter decomposes quickly and is not easy to burn. It is also an ideal fire-proof tree species.

medicinal

The source of medicinal materials: branches and leaves of Aceraceae plants.

Harvest and storage: summer harvest, fresh use or drying.

Sexual taste: Xin; Bitter; Warm.

Indications: expelling wind and removing dampness; Promoting blood circulation and relieving pain. Headache due to main deviation; Cold-dampness arthralgia; Trauma and blood stasis; Eczema; Scabies

Baidu Encyclopedia: Acer truncatum

Baidu Encyclopedia: Acer negundo