Stems caespitose, simple or many branched, 60-150 cm tall, ca. 1 cm in diam., antrorsely setulose, armed with spreading stinging hairs, dense in lower parts, sparser in upper parts.

丛生的茎，单枝，60-150厘高，直径约1厘，向上地小刚毛的，的蛰毛刺，紧密的在下部，稀的在上半部。