수선화과 Amaryllidaceae

1. 부화관이 있다.

2. 수술대는 작은 부화관 사이에서 돋는다    ·································································································상사화속

2. 수술대는 부화관 안에서 돋는다   ·······································································································639. 수선화

1. 부화관이 없다.

3. 꽃은 꽃줄기 끝에 1 개씩 달린다     ···································································································나도사프란속

3. 꽃은 산형으로 달린다

4. 화피의 통부는 열편보다 짧고 뒤로 말리지 않는다.

5. 꽃줄기는 속이 비어 있다   ····································································································632. 아마릴리스

5. 꽃줄기는 속이 차 있다  ·············································································································633. 군자란

4. 화피의 통부는 열편보다 길거나 비슷하다    ···························································································문주란속