1.   As the weather gets warmer, the flowers open.

2.   The flowers only open during bright weather.

3.   The virus attacks the plant, the flower does not open, and consequently no seeds are produced.

4.   The flower opens facing skyward.

5.   With the warmth of the room, the flowers open almost flat.

6.   The flowers open so much that the petals swing back.

7.   As the flowers opened, one by one, I looked at them from all angles, stuck out my chest, stood tall.

8.   Before the flower opens, it looks like many dark purple seeds all over the top.

9.   After a lush spring bloom, its red flowers open sporadically until struck by frost.