수영속 Rumex LINN.

1. 잎의 기부는 검같이 생겼으며, 2 가화이다.

2. 화피 열편은 꽃이 핀 다음 자라지 않는다   ··························································································182. 애기수영

2. 화피 열편은 꽃이 핀 다음 자란다    ·······································································································183. 수영

1. 잎은 설저， 원저 또는 심장저이며 꽃은 1 가화이다.

3. 화피 내편의 주맥은 열매가 성숙해도 1 개만이 약간 자란다.

4. 윤생한 꽃층이 밀착하고 털이 없다

5. 잎은 심장저， 내화피는 절저， 과병에 마디가 없다  ··········································································184. 토대황

5. 과병에 마디가 있다. 잎은 예저， 절저 또는 원저이고 내화피는 심장저이다 ················································185. 개대황

4. 윤생한 꽃층은 다소 성글게 붙고 잎은 뒷면 맥 상에 털 같은 돌기가 있다······················································186. 호대황

3. 내화피 주맥에 혹 같은 돌기가 있다.

6. 내화피는 원형 내지 원심형이며 지름 4-7mm이다.

7. 뿌리에서 돋은 잎은 심장저， 내화피는 원섬형 또는 난심형이며 다소 뚜렷한 톱니가 있다  ·······················187. 참소리쟁이

7. 뿌리에서 돋은 잎은 원저 또는 설저， 내화피는 난원형이며 거의 톱니가 없다   ·······································188. 소리쟁이

6. 내화피는 난형 내지 좁은 난형이다.

8. 내화피는 밋밋하고 지름 1.5mm이며 줄기는 검은 자줏빛이 돌고 잎에는 흔히 검은자색의 반점이 있다 ·······189. 묵밭소리쟁이

8. 내화피에 톱니 또는 가시 같은 돌기가 있다.

9. 내화피 열편은 길이 2-3mm, 가장자리의 돌기는 길이 1.5~3 mm이다 ···············································190. 금소리쟁이

9. 내회피 열편은 길이 4-6mm, 가장자리의 돌기는 길이 1-1.5mm이다

10. 밑의 잎은 심장저， 장타원상 난형이며 뒷면에 털 같은 돌기가 있다  ············································· 둥근소리쟁이

10. 밑의 잎은 원저， 장타원상 피침형이며 뒷면에 털이 없다  ···························································부산소리쟁이