Leaves
Leaf or leaflet shape
An outline of specific form which is plane or two-dimensional; or a specific figure which is three dimensional.
auriculiform | Usually obovate with two small rounded, basal lobes. |  |
cordiform | Heart-shaped. |  |
elliptic | With widest axis at midpoint of structure and with margins symmetrically curved. |  |
hastiform | Triangular with two flaring basal lobes. |  |
lanceolate | With widest axis below middle and with margins symmetrically curved; Length:Width more than 6:1-3:1 |  |
linear lanceolate | Narrow, flattened, triangular, or quadrangular leaf usually 1/2-2 in. long; e.g., Taxus, Picea. |  |
lyrate | Lyre-shaped; pinnatifid with large terminal lobe and smaller lower lobes. |  |
oblong | Plane figure or Solid with widest axis at midpoint of structure and with margins essentially parallel; Length:Width 2:1-3:2 |  |
obovate | Inversely ovate. |  |
ovate | With widest axis below middle and with margins symmetrically curved; egg-shaped; Length:Width 2:1-3:2 |  |
panduriform | Fiddle-shaped; obovate with sinus or indentation on each side near base and with two small basal lobes. |  |
peltiform | Rounded with petiole attached to center of blade or apparently to laminar tissue. |  |
reniform | Lobe rounded; sinus depth variable; outer margin convex or straight, inner concave. |  |
runcinate | Oblanceolate with lacerate to parted margins. |  |
sagittiform | Triangular-ovate with two straight or slightly incurved basal lobes. |  |
spathulate or spatulate | Oblong or obovate apically with a long attenuate base. |  |