호장근속 Reynoutria HOUTI.

1. 잎은 길이 15~30 cm, 잎집은 길이 2-7cm 이다  ·····················································································208. 왕호장

1. 잎은 길이 6-15 cm, 잎집은 길이 4-6mm 이다  ····················································································· 209. 호장근