Sedimentary Rocks. The Basics. Sedimentary rocks are classified in three main groups: clastic, chemical, and organic. Each group forms in a very unique way by completely different processes. Read on to discover more about these rocks and how they came to be. Clastic Rocks.
sprig. 1. a small spray of a plant with its leaves, flowers, etc. 2. an ornament having the form of such a spray. 3. a shoot, twig, or small branch. 4. a scion; heir. 5. a youth. 6. a headless brad. 7. to mark or decorate with a design of sprigs.
A single 'sunflower' is a composite of many tiny flowers, a pseudanthium. An inflorescence is a flowering stem. The term is most used for a group or cluster of flowers arranged on a stem. An inflorescence is the reproductive portion of a plant; each plant bears its flowers in a specific pattern. Sometimes it is just a close bunch of flowers (e.g. Antirrhinum) on a spike.