Leaf or leaflet apex shapeThe shape of the leaf or leaflet tip. Note that the description of shape is at best approximate, given that there exists a full range of variation between each idealised shape, making interpretations somewhat subjective. Further complications arise from variation between individuals of a taxon, within an individual specimen, and in the case of compound leaves, between individual leaflets. Users should take a relatively broad interpretation of leaf apex shape, and enter the most commonly observed condition(s). Return to Character index |
Acute or acuminate or acicularThe leaf or leaflet margins taper (gradually or abruptly) to a point at the apex. Generally, the converging margins are separated by an angle of less than 90 degrees. |
Obtuse or roundedThe leaf or leaflet apex is blunt to rounded. Generally, converging margins are separated by an angle of more than 90 degrees. |
Bilobed or emarginate or retuse or sagittateThe leaf or leaflet apex is slightly to deeply notched (the leaf or leaflet apices may be obtuse to acute in overall shape). |
TruncateThe leaf or leaflet apex is squared, as if cut-off. |