| Name | Structure/ Category | Description |
|---|---|---|
| Clasping | [Leaf bases, Leaflet bases] {shape} | The base partly surrounding the stem. |
| Claw | the slender, prolonged basal portion of certain petals (as in the pink) | |
| Clawed | having claws (see above) | |
| Cleft | The leaf is sharply divided into lobes; it may be pinnately or palmately cleft. The ends of the lobes are often pointed, rather than rounded. See line drawing of Cleft shape. | |
| Circinate | characterized by hor having the form of a flat coil of which the apex is the center -- used esp. of arrangements of plant parts in vernation and of developing fern fronds | |
| Clouded | [Leaf lower surface, Leaf upper surface] | Colors are unequally blended together. |
| Clustered | [Leaves] {insertion} , [Needles] {presence of clusters or fascicles} | Leaves grouped closely together at the point of attachment and tending to diverge from one another, as the leaves on short shoots in Gingko (Gingko biloba) or the needles on short shoots in larches (Larix). |
| Collateral | [Buds] {position} | In pairs, within or straddling the leaf axils; often located on either side of an axillary bud. |
| Column | the united monadelphous stamens in mallows the united androecium and gynoecium in orchids | |
| Composite Flower | A flowerhead consisting of numerous small florets. This flowerhead may have ray florets (a small flower resembling a petal) and/or disk florets (a small tubular flower with tiny lobes). The florets are held together by floral bracts surrounding the base of the flower. |
