Australian Tropical Rainforest Plants - Online edition

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L82 cuneate Wedge-shaped, tapering somewhat abruptly towards the base.
L83 attenuate Tapering gradually towards the base.
L84 obtuse Rounded at the base.
L85 cordate Broad and notched base.
L86 auriculate Ear-shaped lobes near the base which is notched.
L87 sagittate Like an arrow-head, narrow with lobes angled back towards petiole.
L88 hastate Spear-shaped, narrow and pointed with two lobes at the base that join the petiole at a sharp angle (eg. right angle).
L89 truncate Having an abrupt transverse base, as if cut off.
L90 oblique An asymmetrical base, where one side of the petiole is larger than the other.
L91 peltate Where the petiole is attached to the lower surface of the leaf blade, not to the margin.
L93 perfoliate Where the leaf is sessile (without a petiole) and the base is wrapped around the stem.
L93 sheathing The lower portion of the leaf wrap around the stem, and may be free and overlapping, or fused.

Base shape

The shape of the leaf base (or leaflet base in the case of compound leaves) irrespective of whether the leaf or leaflet is petiolate or sessile.

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