작약속 Paeonia LINN.

1. 초본으로 화반은 높지 않.

2. 소밑은 흐르지 않고 잎은 윤으며 뒷면은 흰빛.

3. 은 희며 암머리는 짧고 으로 굽었. 잎은 뒷면에 없고 열뒤로 젖혀졌다   ························465. 백작약

3. 꽃은 연한홍색이며 암술머리는 다소 고 꼬였다. 은 뒷에 대개 털이 돌은   ···················· 465+. 산작약

2. 소엽 밑은 흐르고 잎윤채가 나며 은 담녹색이고 ······························································466. 적작약

1. 관목으로 화반은 커져서 심감싸고 있다  ····························································································467. 모란