The involucral bracts have 3-4 layers, the edges are all purple-brown, the apex is acute, the outer layer is sparsely villous, the outer layer is oblong, long 1. 1 cm, 5 mm wide, the middle layer and the inner layer are lanceolate, long 1.5- 1.8 cm, and 2 mm wide.
The floret is purple, with a length of 1.6 cm, a tube length of 7 mm and a eaves length of 9 mm. Achene oblong, 3 mm long. The crown hair is dirty white, with 2 layers, the outer layer is small, rough, 3 mm long, and the inner layer is long, feathery and 1.5 cm long. The flowering and fruiting period is from July to September.
Extended data
Saussurea involucrata is distributed in many alpine regions of China, and also in Russian and Kazakstan. It grows in rock crevices, stone walls and glacial sulfur gravel beaches near the alpine snow line, with an altitude of 2400-4000 meters.
Saussurea involucrata's growing environment is extremely harsh, and the plants in its growing environment can't survive at all. However, saussurea involucrata can survive in the cold of tens of degrees below zero and the oxygen-deficient environment with thin air.
It is also Saussurea involucrata's unique living habits and unique growth environment that make it natural and rare, and create its unique pharmacological effects and medicinal value.
The yield of Saussurea involucrata in saussurea involucrata is extremely low. It takes five years from germination to flowering. Its seeds germinate at zero degrees Celsius and grow at three to five degrees Celsius. The seedlings can withstand the low temperature of minus 21 degrees Celsius, but the actual growth period is less than two months.