주머니꽃(개불알꽃)아과 Cypripedioideae

1. 잎은 3-5개가 호생한다.

2. 꽃은 연한 자주색 내지 흥자색이며 간혹 흰색을 나타낸다 ························································· 671. 주머니꽃(개불알꽃)

2. 꽃은 황색이며 밑에 붉은 반점이 있고 1-3개씩 달린다··················································· 672. 노랑주머니꽃(노랑개불알꽃)

1. 잎은 2개로서 호생 또는 대생한다.

3. 잎은 장타원형이고 꽃은 길이 2.5-3cm이다  ··································································· 673. 털주머니꽃(털개불알꽃)

3. 잎은 둥근부채형이고 꽃은 길이 5-7cm이다···················································································· 674. 광릉요강꽃