How to Photograph Grasses
It can sometimes be difficult making a meaningful image with grasses. Below are several ways to try.
1) Select a single or small group of heads - preferably all on the same plane, and then choose a low depth of field (2.8 - 5.6). Choose a camera angle that has little in the background or items a long way behind, or use the sky and take the photo. This should highlight the grass head and stems and blur the background.
2) Try the same with the light behind the grass head and expose for the grass.
3) Get further back from the subject, getting a large amount of the grasses in the picture. Use a low camera angle and try using the sky to place the tops of the heads against.
4) Select a grass head that is in the sun with a shadow behind it. You may have to move yourself and the camera angle to achieve this. Expose for the grass head and let the background go black.
To do the above you can use any normal wide angle, standard or telephoto lens. When you want to photograph just the head, or detail in the flowers or pollen, you will need a macro lens. You may then need a tripod if you ar up very close and especially if the light is not strong.
If you wish to go closer and photograph tiny structures in the seeds etc. you will probably need to use a camera mounted on a microscope.