| 1. | Flower - heads narrowly campanulate , 16 - 19 mm long , ca . 6 mm across , usually 2 - 4 in terminal clusters ; peduncle 2 - 8 mm ; involucral bracts ca . in 7 series , ribbed on abaxial surface , apex spiny 叶互生,卵形,长3 - 5 . 5厘米,宽2 - 4厘米,先端短尖,基部近截形,边缘具疏齿,两面被长柔毛,具基出脉3条;叶柄长3 - 5毫米。 |