Some Thesaurus words for "pod" - capsule, case, covering, hull, husk, sheath, shell, shuck, skin, vessel.
I found the extreme values of this photo captivating. The dark coneflower skeleton against the vibrant green background really makes this pod structure stand out. Notice the way the light hits them and actually gives them a bit of life. That is truly amazing to the artist in me. I also love the colors found in the dark, dried pods - would you have included them in your rendering?