It
belongs to the Dryopteridaceae Family, with the Latin name of Sorolepidium glaciale.ª¥
The
perennial herb can attain the height up to 10 to 30 centimeters. The short
rhizome grows upright or slanting. There are imbricate squamae borne on the
surface of petioles and rachises. The brown squamae have serrulate eyelashes on
edges and turn pale when aged. It bears linear leaf blade, lance-shaped, with a
short stipe. The sori are round in shape without cover and located in a single
row respectively on both sides of the principal
vein.
It
mainly grows in cold deserts on mountains and is usually found growing sparsely
in gaps between broken stones on edges of glaciers or near snow lines. In warm
season (July to August), it can grow rapidly in a short time after defrosting of
the earth surface.
It's sparsely distributed in mountainous
areas adjacent to Tibet Autonomous Region, Yunnan and Sichuan provinces. It's a
special species of China and of significant value for scientific
research.