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Displaying 1 - 11 out of 11 Object(s)
Term Definition
Base The bottom or proximal end of a structure such as a stem, leaf blade or flower.
Leaf base acute Sharp; referring to the base of a leaf blade in which the two sides are straight and, when they meet, form an angle that is always less than 90°. Leaf blade bases. Drawing by M. Manisha.
Leaf base asymmetric Referring to a leaf base in which the two sides do not attach to the petiole at the same place, one is attached than the other. Some leaf features of witch hazel. Photo by S. A. Mori.
Leaf base cordate Heart-shaped at the base of a leaf blade. A cordate leaf blade always has a cordate base but a cordate leaf base may not always be associated with a cordate leaf blade. Leaf blade bases. Drawing by M. Manisha.
Leaf base cuneate Wedge-shaped; referring to the base of a leaf blade of which the angle formed by the meeting of the margins is less than 90°. Leaf blade bases. Drawing by M. Manisha.
Leaf base decurrent Referring to a leaf blade base that extends down the petiole. Leaf blade bases. Drawing by M. Manisha.
Leaf base lobate (lobed) A rounded projection arising from the base of a leaf blade. Leaf blade bases. Drawing by M. Manisha.
Leaf base obtuse Blunt, referring to the the base of a leaf blade in which the two sides are straight and, when they meet, form an angle greater than 90°. Leaf blade bases. Drawing by M. Manisha.
Leaf base rounded Referring to a leaf blade base that is curved at the apex with an angle greater than 90 degrees at the point where the two sides meet. Leaf blade bases. Drawing by M. Manisha.
Leaf base sagittate The base of a leaf blade shaped like an arrowhead. A sagittate leaf blade base. Drawing by B. Angell.
Leaf base truncate Referring to the base of a leaf blade that terminates abruptly in a nearly straight horizontal edge. Leaf blade bases. Drawing by M. Manisha.