장대나물속 Arabis LINN.

1. 잎은 밑이 좁아져서 잎자루같이 된다.

2. 키는 50 cm 내외로서 톱니가 없다.

3. 각과는 길이 6~7cm， 너비 1mm 이다 ·····························································································576. 섬장대

3. 각과는 길이 5.3-8.7 cm， 너비 2-2.3mm 이다  ················································································577. 주걱장대

2. 키는 50cm 이하이다.

4. 곧추 자란다 ····························································································································578. 묏장대

4. 비스듬히 또는 옆으로 자란다.

5. 2년초로서 옆으로 비스듬히 자란다   ·····················································································579. 자주장대나물

5. 다년초로서 꽃이 핀 다음부터는 지변으로 벋어간다 ········································································ 580. 큰산장대

1. 잎은 밑부분으로 줄기를 감싼다.

6. 2년초이다.

7. 톱니가 거의 없다.

8. 키는 20-80 cm 이다 ···············································································································581. 털장대

8. 키는15~60cm이다  ··············································································································588. 가는장대

7. 톱니가 뚜렷하다.

9. 키는 50 cm 이상이고 각과는 길이가 7~10 cm 이다    ·································································· 583. 느러진장대

9. 키는 50 cm 미만이고 각과는 길이가 4~6 cm 이다  ········································································ 585. 섬갯장대

6. 다년초이다.

10. 각과는 길이가 2 cm 이다 ···································································································· 584. 참장대나물

10. 각과는 길이가 4-6 cm 이다  ································································································ 586. 섬바위장대