Roots

An absorbing and anchoring organ, usually initially developed from the radicle and growing downward.
| root structural type | Classification based on position and origin. | |
| root bark with ridges | ||
| root woodiness | The study of biological form and structure, excluding its functions. | |
| root pith character | ||
| root pith to vascular area | ||
| root ray shape | An outline of specific form which is plane or two-dimensional; or a specific figure which is three dimensional. | |
| root resin canal location | ||
| root resin canals | ||
| root shape x.s. | An outline of specific form which is plane or two-dimensional; or a specific figure which is three dimensional. | |
| root vestiture and/or surface | ||
| root wood ray length: width ratio | Cells elongated radially, develop from ray initials. | |
| root wood ray width | Cells elongated radially, develop from ray initials. | |
| root wood rays visible | Cells elongated radially, develop from ray initials. |