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Leaves

Leaf or leaflet shape

An outline of specific form which is plane or two-dimensional; or a specific figure which is three dimensional.

Usually obovate with two small rounded, basal lobes. auriculiform

Heart-shaped. cordiform

With widest axis at midpoint of structure and with margins symmetrically curved. elliptic

Triangular with two flaring basal lobes. hastiform

With widest axis below middle and with margins symmetrically curved; Length:Width more than 6:1-3:1 lanceolate

Narrow, flattened, triangular, or quadrangular leaf usually 1/2-2 in. long; e.g., Taxus, Picea. linear lanceolate

Lyre-shaped; pinnatifid with large terminal lobe and smaller lower lobes. lyrate

Plane figure or Solid with widest axis at midpoint of structure and with margins essentially parallel; Length:Width 2:1-3:2 oblong

Inversely ovate. obovate

With widest axis below middle and with margins symmetrically curved; egg-shaped; Length:Width 2:1-3:2 ovate

Fiddle-shaped; obovate with sinus or indentation on each side near base and with two small basal lobes. panduriform

Rounded with petiole attached to center of blade or apparently to laminar tissue. peltiform

Lobe rounded; sinus depth variable; outer margin convex or straight, inner concave. reniform

Oblanceolate with lacerate to parted margins. runcinate

Triangular-ovate with two straight or slightly incurved basal lobes. sagittiform

Oblong or obovate apically with a long attenuate base. spathulate or spatulate