0 a bone forming part of the ankle joint: --
a talus fracture
1 large, loose broken stones on the side of a mountain, or an area covered with stones like this: --
The settlement is built on the black talus of an active volcano.
The "head of talus" looks forward and medialward; its anterior articular or navicular surface is large, oval, and convex.
The park's talus caves provide roosting and breeding habitat for the bats.
Both pediment flatirons and talus flatirons are associated with the scarps of a cuesta, mesa, or butte and with their tips directed towards the scarp.
The main bones of the ankle region are the talus (in the foot), and the tibia and fibula (in the leg).
It occurs in many types of moist and wet habitat, including marshes, riverbanks, lakesides, floodplains, talus, ditches, and moist spots in forests and woodlands.
It grows in mountain habitat such as forests, meadows, and talus, occurring in subalpine and alpine climates at elevations of 700 to 3000 meters.
It is mainly limited to the alpine climates of high mountain peaks, where it grows in meadows, tundra, and barren, rocky talus.
I am almost inclined to say with the poet, non tali auxilio in such cases.