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.

丛生茎，单或多，60-150高，直径约1，向上地小刚，平展蛰刺，紧密在下部，稀在上半部。