10) 물대족 Arundineae

1. 소화의 기반은 자라지 않아서 반상이다.

2. 호영은 포영보다 길고 딱딱하며 기모는 짧아서 밖으로 나오지 않는다    ·····················································235. 진퍼리새

2. 호영은 포영보다 약간 길고 앓으며 기모는 길게 밖으로 나온다  ····································································236. 물대

1. 소화의 기반은 자라서 자루같이 보인다 ······································································································ 갈대속

갈대속 Phragmites ADANS.

1. 땅 위로 뻗어가는 포복경이 있고 마디에 털이 있다  ···············································································237. 달뿌리풀

1. 땅 위로 뻗어가는 포복경이 없고 마디에 털이 없다.

2. 꽃차례는 길이 40-60 cm 이며 첫째 소화는 길이 5-7mm 이고 포영은 둔두 또는 절두 이다 ·························· 237+. 큰달뿌리풀

2. 꽃차례는 길이 1O~40cm 이며 첫째 소화는 길이 1cm 이고 포영은 예두이다      ················································238. 갈대