Lanceolate - Widening to a maximum near the base and tapering to a point at the apex.
Lateral - Occurring on or growing from the side. (Compare terminal).
Leaf - A vegetative organ which, when complete, consists of a flat blade, a petiole or stalk, and (usually two) small leafy appendages at the base of the petiole.
Leaflet - A division or part of a compound leaf.
Legume - A one-celled fruit that splits along two sutures or seams. (e.g. pea).
Linear - Long and narrow, with nearly parallel sides.
Lip - One of the parts in a corolla or calyx divided into two unequal parts.
Lobe - A part or division, especially when rounded, of an organ.
Lyrate - Lobed to resemble a lyre, with the terminal lobe largest and the lower lobes smaller.