| Name | Structure/ Category | Description |
|---|---|---|
| Compound | [Leaves] {complexity} | Divided into two or more equivalent parts, as a leaf that consists of multiple, distinct leaflets; not simple. |
| Compound dichasium | [Inflorescences] {type} | A determinate, cymose inflorescence with the main axis bearing a terminal flower and a pair of opposite or nearly opposite lateral branches, each branch also bearing a terminal flower and a pair of lateral flowers or branches; a branched dichasium. |
| Compound ovary | An ovary formed by the fusion of the bases of two or more carpels; recognizable by the presence of more than one area of placentation, locule, ovary lobe, style (or style branch), or stigma. | |
| Compound umbel | [Inflorescences] {type} | An inflorescence composed of several branches that radiate from almost the same point, like the ribs of an umbrella, each terminated by a secondary set of radiating branches that end in one or more flowers, the upper surface of the whole inflorescence rounded, or more or less flat; a branched umbel; as in Queen Annes lace (Daucus carota). |
| Cone | Reproductive structures in conifers comprised of scales and/or other types of modified leaves densely arranged on a central stalk; female, or seed cones, bear ovules on the surface of their scales; male cones produce pollen. | |
| Conic | [Buds] {shape} , [Seed cones] {shape before opening, shape when open} | Rounded in cross section, broadest at the base and essentially triangular in outline; cone-shaped. |
| Conifer | Cone-bearing plants, such as pines (Pinus). | |
| Conspicuous lenticels | [Bark of mature trunks] {surface appearance} | Bark with readily visible pores or lenticels. |
| Continuous | [Pith] {type} | Uninterrupted by cavities and essentially homogenous in texture; solid. |
| Cordate | [Leaf bases, Leaflet bases, Leaflets, Leaves] | Heart-shaped, with the notch at the base. |
