Stems
Cauline leaf arrangement (on stem)
Disposition of organs or parts with respect to one another.
alternate | One leaf or other structure per node. |  |
decussate | Opposite leaves at right angle to preceding pair. |  |
dextrorse | Rising helically from right to left, a characteristic of twining stems. | |
distichous | Leaves 2-ranked, in one plane. |  |
equitant | Leaves 2-ranked with overlapping bases, usually sharply folded along midrib. |  |
fascicle | Cluster of needles borne on a minute determinate short shoot in the axil of a primary leaf (bract); e.g., Pinus. |  |
imbricate | Leaves or other structures overlapping. |  |
none | ||
opposite | Two leaves or other structures per node, on opposite sides of stem or central axis. |  |
sinistrorse | Rising helically from left to right, a characteristic of twining stems. | |
whorled | Three or more leaves or other structures per node. |  |