These jars are filled with ground-up foliage samples. They remind me of herbs or spices. I took these at the lab I work at on campus, which focuses on forest ecosystem research. I really enjoy the pattern of the jars, filled with the earth-tone colors. The colors tend to vary depending upon where the samples originate from, the species, and the time of year they were collect (alive or dead, conifer or deciduous). I probably ground hundreds of these samples before I really noticed the beauty. I wanted to photograph samples like these for ages, and I finally had my chance last week when I had my camera with me.