The difference between Acacia japonica and Robinia pseudoacacia, what is the difference between Acac

The differences between Robinia and Acacia japonica are as follows:

1. The flowering time of Robinia pseudoacacia and Acacia japonica is different in different flowering periods, among which the flowering period of Robinia pseudoacacia is 4-5 months, the flowers are white butterfly-shaped flowers, and the racemes are axillary, while the inflorescences of Acacia japonica are usually apical, pyramid-shaped, and generally bloom in July and August every year.

2. The leaves of Robinia pseudoacacia are ovate-oblong, with acute apex and rounded base, while the leaves of Robinia pseudoacacia are ovate-oval, with round apex or slightly concave, and it is very easy to distinguish between Robinia pseudoacacia and Acacia japonica in leaf morphology.

3. Growth habit Robinia pseudoacacia is a strong positive tree species, not suitable for growing in a shady environment, likes dry climate, does not tolerate water and moisture, while Acacia sinensis is cold-resistant, likes sunlight, has a certain negative tolerance, and is prone to poor root growth in low-lying places.

4. The main production area of Acacia sinensis is in the north of China, usually growing in the North China Plain and the Loess Plateau at an altitude of 1 meter, Robinia pseudoacacia is native to North America, and now most of them grow near the Yellow River and Huaihe River basins, and are suitable for planting in plains, hills and other places.

Compare the bark and seeds of the national locust and the black locust.

Acacia japonica: deciduous tree, up to 20 meters high, with a spherical crown. The bark is grayish-black, longitudinally fissured.

The twigs are green, smooth, and have distinct yellowish-brown pores. odd pinnate compound leaves, leaflets opposite, 7 17, elliptic or ovate, apex pointed, base rounded to broadly wedge-shaped, dorsal with powdery and pubescence, entire. 6 August flowering, flowers light yellow, panicles.

The pods are fleshy, ripe in October, and do not fall for a long time after ripening.

Acacia: Also known as black locust. deciduous tree, 1 25 m high; The bark is brown with longitudinal cracks.

Pinnate compound leaves with leaflets 7 25, alternate, elliptic or ovate, 2 cm long, 1-2 cm wide, rounded or slightly concave at the apex, with small pointed heads, rounded at the base. The flowers are white with red markings on the calyx tubes. Flowering and fruiting period 4 June.

The main differences between acacia and acacia are as follows:

1. The flowering period is different. The flowering period of the Chinese acacia is from July to August, and the acacia is from April to May.

2. The leaf shape is different. Acacia is ovate-oblong, with an acute apex, and acacia is ovate-oval, with a rounded or slightly concave apex (in layman's terms, the apex of the acacia leaves is pointed, and the acacia is round).

3. The fruits are different. The fruit of the acacia is a rosary-shaped pod, whereas the acacia is a flat pod.

Compare the bark and seeds of the national locust and the black locust.

That "Yellow Crane" is very interesting, I have been making plants for more than ten years or the first time I have heard that there is a locust family!! The locust tree, also known as the national acacia, belongs to the butterfly flower family with the black locust, and used to belong to the legume family, but the later subfamily system divided the legume family into three families. The locust tree belongs to the genus Locust, and the black locust belongs to the genus Robinia pseudoacacia.

The branches of the genus Locust are smooth and thornless, and the new branches are green, and the branches of the Robinia tree have many leaf thorns that are turned into leaves, and the branches are grayish-brown. Locust trees have small, yellow, many branched inflorescences, the pods are fleshy, mucus, and do not crack on their own, the black locust flowers are relatively large, white or pink, sweet, the inflorescences are not branched, drooping, and the pods are somewhat like lentils, without mucus, and can crack when dried. The flowers of the locust tree are an important raw material for yellow dye, and the black locust flower is a good vegetable and nectar source.

Locust trees flower first and then bloom in midsummer, and black locust flowers first and then leaves, and blooms in late spring. Locust trees can only be sown and reproduced, and they can also be grafted after sowing varieties, and black locust trees can be sown, rooted, tillered, and grow quickly. Locust trees are masculine species and prefer plenty of light, while black locust seedlings are feminine and prefer to be in the shade but are masculine when they grow up.

Locust trees are generally used as green street trees, high-quality wood, etc., and black locust trees are generally used as nectar source trees, cut down to burn charcoal, etc., and the wood material is also good. The roots of the locust tree will not sprout, one is the other, the root system is relatively deep, the root system of the black locust is very shallow, there is often a situation where the wind blows down, the root system is easy to produce adventitious buds, the root system is very self-propagating, it is easy to expand into a large area, and it is not easy to clean up, and the roots will emerge when the roots are broken. The locust tree is native to China, the black locust is introduced from abroad, and the first cultivation city in China is Qingdao.

The locust tree can be used to graft fast-growing Chinese locust, golden branch Chinese locust, butterfly locust, dragon claw locust, etc., and black locust can be used to graft fragrant locust, black locust, Longqu black locust, etc.

1. The flowering period is different.

The flowering period of the Chinese acacia is from July to August, and the acacia is from April to May.

2. The leaf shape is different.

Acacia is ovate-oblong, with a sharp apex, and acacia is ovate.

Oval, the apex is round or slightly concave (to put it in layman's terms: the tip of the leaf is pointed, and the acacia is round).

3. The fruits are different.

The fruit of the acacia is a rosary-shaped pod, whereas the acacia is a flat pod.

1. Different attributions.

1. Robinia acacia belongs: Robinia pseudoacacia belongs to a type of locust tree.

2. Ownership of locust trees: The types of locust trees include black locusts.

Second, the distribution range is different.

1. Robinia pseudoacacia distribution range: native to the United States. It is cultivated at 23° 46° north latitude and 86° 124° east longitude. At the end of the 18th century, China introduced Qingdao cultivation technology from Europe, and it is now widely cultivated throughout China.

In the Yellow River Basin and the Huaihe River Basin, planting has been concentrated and growing vigorously. The North China Plain is vertically distributed at 400 to 1200 meters, with cultivated land in Gansu, Qinghai, Inner Mongolia, Xinjiang, Shanxi, Shaanxi, Hebei, Henan, Shandong and other provinces (regions).

2. Distribution range of locust trees: North China is more concentrated, and Liaoning, Guangdong, Taiwan, Gansu, Sichuan, and Yunnan are also widely planted.

1.The flowering period of Robinia and Acacia japonica is different, with Robinia blooming in April-May and Acacia japonica flowering in July-August each year.

2.The leaves of Robinia pseudoacacia are different from those of Acacia japonica, the leaves of Robinia pseudoacacia are ovate-oval, the apex is round or slightly concave, and the leaves are more round, while the leaves of Acacia sinensis are ovate-oblong, with an acute apex and a more pointed point.

3.The flowers of Robinia pseudoacacia are different from those of Acacia japonica, which are axillary in racemes and belong to white butterfly-shaped flowers, while Acacia sinensis is apical in panicles and often pyramidal.

1. The flowering period is different: the flowering period of Robinia pseudoacacia is from April to May, and the Chinese acacia blooms from July to August every year. 2. The leaf shape is different.

The apex of Acacia japonica is sharply pointed, and the apex of Robinia pseudoacacia is round or slightly concave. 3. Growth habit: Robinia pseudoacacia is a strong positive tree species and is not shade tolerant, while Acacia japonica has a certain degree of negative tolerance.

4. Difference in origin: Acacia japonica grows in areas with higher altitudes, and most of the black locusts are in the plains.

1. The flowering period is different.

The flowering time of Robinia pseudoacacia and Acacia japonica is different, among which the flowering period of Robinia pseudoacacia is from April to May, the flowers are white butterfly-shaped flowers, and the racemes are axillary, while the inflorescences of Acacia japonica are usually apical, pyramid-shaped, and generally bloom in July and August every year.

2. The leaf shape is different.

The leaves of the black locust are ovate oblong, with a sharp apex and a rounded base, while the leaves of the black locust are ovate-oval, with a rounded or slightly concave apex, and the black locust and the national locust are very easy to distinguish in leaf morphology.

3. Growth habits

Robinia pseudoacacia is a strong positive tree species, not suitable for growing in a shady environment, prefers a dry climate, and is not tolerant to water and humidity, while Acacia japonica is cold-resistant, likes sunlight, has a certain negative tolerance, and is prone to poor root growth in low-lying places.

4. Differences in origin

The main production area of Acacia sinensis is the north of China, usually growing on the North China Plain and the Loess Plateau at an altitude of 1000 meters, Robinia pseudoacacia is native to North America, and now most of them grow near the Yellow River and Huaihe River Basin, and are suitable for planting in plains, hills and other places.

The flowers of the black locust are the common acacia flowers in the market, which are edible. The flowers of the Chinese acacia can only be ornamental, and have no edible value, and its fruits are generally used as medicine!

Acacia blooms early, Robinia blooms late, Robinia flowers are very fragrant, the inflorescence is relatively large, and it is a nectar source. I think the color of the leaves is also different, and the leaves of the national acacia are slightly blue-green. The main trunk of the national acacia is generally relatively straight. Robinia grows more casually, hehe@30$

Compare the bark and seeds of the national locust and the black locust.