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，或多枝，60-150厘米高，直径约1厘米，向上地具小刚毛，具平展蛰毛刺，紧密下，稀上半。