Leaf distribution along stem

This feature covers leaf distribution rather than leaf orientation (the feature Leaf arrangement on stem (phyllotaxis) deals with leaf orientation). Leaves that are all basalbasal:
(adj) at or pertaining to the base, or point of attachment
are most likely arranged in a basalbasal:
(adj) at or pertaining to the base, or point of attachment
rosetterosette:
(n) a radiating cluster of leaves, usually close to the ground at the base of a plant
. The stalk shown in the illustration for that "all basalbasal:
(adj) at or pertaining to the base, or point of attachment
..." state is an inflorescenceinflorescence:
(n) the arrangement of flowers on the floral axis
stalk, not a stem.

evenly distributed all along stem but widely separated

evenly distributed along most of stem and concentrated at stem apex

sparse or absent basally and concentrated only at stem apex

all basal (stem compact)

evenly distributed and closely proximate or overlapping all along stem

APPW key feature pages

Leaf distribution along stem

APPW key feature pages