Celastrus angustifolia

Uncaria przewalskii, also known as vine Luoshuanghong, is a deciduous vine of the genus Celastrus of the family Euonymaceae. The branches and vines are more than 10 meters long. Branchlets with short hooked stipules curved downward, simple leaves alternate, elliptic. The edge is serrulate and the tip of the tooth is prickly. Short racemes axillary, petals spatulate-oblong, flowers yellowish green, flowering from June to July. The capsule is globose, fissured after maturity, and the white seed is wrapped in a bright red aril.

Celastrus przewalskii is native to the Northeast, North China and other places, sexual Yang and Yin tolerance, wide distribution, cold and drought resistance, soil requirements are not strict. It grows best in leeward, sunny, moist and well-drained fertile sandy loam, and can also grow if planted in semi-shade. When fertilizing, you can apply 2 to 3 kilograms of mature organic fertilizer to the pit when planting, and then apply some organic fertilizer every autumn, which can make the plant grow vigorously and the flowers are big and colorful. Watering can be done before spring sprouting and early winter. If the weather is not too dry during the growing period, no watering is needed. It should be noted that although South Snake Teng likes to be wet, it can not accumulate water for a long time and should be drained in time after rain. If you want to develop the thorn-leaf snake vine into a shrub type, it should be cut short after falling leaves in winter to promote it to form more lateral branches. The second is to cut off the disease and insect branches and weak branches to make the plant crown plump. If you carry out vertical greening, you need to set up brackets or scaffolding, otherwise the growth will be restricted. In addition, its entanglement is very strong, if there are other trees around it, it should be checked at any time to prevent it from climbing. The diseases and insect pests of Uncaria przewalskii are mainly thorn E and red spider. if there is any occurrence, 1000 to 1500 times of phoxim EC can be used to spray and kill, and the effect is good.

Celastrus przewalskii can be sown, divided into roots and cuttings, but it can be sown and propagated mostly in autumn and spring. If sowing in spring, the seeds should be soaked in 45 degrees warm water for 24 hours and stirred fully. Change the water once a day, remove the seeds after 2 days, control drying, soak in 0.3% to 0.5% potassium permanganate solution for 1 hour, wash and control dry. Then mix with 3 times wet sand, keep the water content of the sand at 60%, and then store the sand. This method can promote the seed coat softening and enhance the ability of water absorption and expansion, and the treatment time is 30 to 40 days. 20 days before spring sowing, the seeds treated by sand storage were placed indoors or in a leeward direction, kept for 10 ℃ to 15 ℃, and turned once or twice a day at noon. When the seeds are more than 1/3 white, they can be sown.

The thorn leaf south snake vine branch thick leaf is luxuriant, the autumn leaf turns yellow, the capsule splits to expose the red aril wrapped seed, resembles the safflower, is the excellent scaffolding and vertical greening tree species. Shrubs can also be formed by the riverside and the bank of the pond, which is also very chic.