Leaf shape

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In botany

Botany

Botany, plant science, phytology, or plant biology is a branch of biology and is the Scientific method of plant life and development....
, the following terms are used to describe the shape of plant leaves
Leaf

In botany, a leaf is an above-ground plant Organ specialized for photosynthesis. For this purpose, a leaf is typically flat and thin, to expose the cells containing chloroplast to light over a broad area, and to allow light to penetrate fully into the tissues....
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Acicular (acicularis): Slender and pointed, needle-like
Acuminate (acuminata): Tapering to a long point
Aristate (aristata): Ending in a stiff, bristle-like point
Bipinnate (bipinnata): Each leaflet also pinnate
Compound: The combination of one leaflet arrangement within an arrangement at a larger level; e.g.:"bipinnate, twice-pinnate: the leaflets are themselves pinnately-compound"

(cordata): Heart-shaped, stem attaches to cleft

Cuneate (cuneata): Triangular, stem attaches to point
Deltoid (deltoidea): Triangular, stem attaches to side
Digitate (digitata): Divided into finger-like lobes
Elliptic (elliptica): Oval, with a short or no point
Falcate (falcata): sickle-shaped
Flabellate (flabellata): Semi-circular, or fan-like
Hastate, spear-shaped (hastata): Pointed, with barbs, shaped like a spear point, with flaring pointed lobes at the base
Lance-shaped, lanceolate (lanceolata): Long, wider in the middle
Linear (linearis): Long and very narrow
Lobed (lobata): With several points
Obcordate (obcordata): Heart-shaped, stem attaches to tapering point
Oblanceolate (oblanceolata): Top wider than bottom
Oblong (oblongus): Having an elongated form with slightly parallel sides
Obovate (obovata): Teardrop-shaped, stem attaches to tapering point
Obtuse (obtusus): With a blunt tip
Orbicular (orbicularis): Circular
Ovate (ovata): Oval, egg-shaped, with a tapering point
Palmate (palmata): consisting of leaflets or lobes radiating from the base of the leaf.
Pedate (pedata): Palmate, with cleft lobes
Peltate (peltata): Rounded, stem underneath

(perfoliata): Stem through the leaves

Pinnate
Pinnate

Pinnate is a term used to describe feather-like or multi-divided features arising from both sides of a common axis in plant or animal structures, and comes from the Latin word pinna for "feather"....
(pinnata): Two rows of leaflets

odd-pinnate, imparipinnate: pinnate with a terminal leaflet
paripinnate, even-pinnate: pinnate lacking a terminal leaflet
pinnatifid and pinnatipartite: leaves with pinnate lobes that are not discrete, remaining sufficiently connected to each other that they are not separate leaflets.
bipinnate, twice-pinnate: the leaflets are themselves pinnately-compound
tripinnate, thrice-pinnate: the leaflets are themselves bipinnate
tetrapinnate: the leaflets are themselves tripinnate.

Pinnatisect (pinnatifida): Cut, but not to the midrib (it would be pinnate then)
Reniform (reniformis): Kidney-shaped
Rhomboid (rhomboidalis): Diamond-shaped
Round (rotundifolia): Circular
Sagittate (sagittata): Arrowhead-shaped
Spear-shaped: see Hastate.
Spatulate, spathulate (spathulata): Spoon-shaped
Subulate (subulata): Awl
Awl

Awl is a long pointed spike. It may be a:*Scratch awl, a tool with a long pointed spike used for marking wood.*Stitching awl, a tool used by leatherworkers, such as cobblers , to pierce holes in leather...
-shaped with a tapering point
Sword-shaped (ensiformis): Long, thin, pointed
Trifoliate, ternate (trifoliata): Divided into three leaflets
Tripinnate (tripinnata): Pinnately compound in which each leaflet is itself bipinnate
Truncate (truncata): With a squared off end
Unifoliate (unifoliata): with a single leaf