Pollen grains having furrows (colpi) in the exine.

Pollen grains having both pores and furrows.

The central axis of certain fruits, cones, or sporangia.

In orchids, the fused male and female reproductive structures (gynostemium); also refers to upright cylindrical structures.

Having a tall, narrow, cylindrical shape with a roughly constant diameter (applied to tree forms or plant cells).

The basal extension of the column in some orchids.

Lateral extensions of the column in certain orchid flowers.

(1) A tuft of hairs at the end of some seeds (e.g., milkweed); (2) The crown of leaves in palms…

In taxonomy, the publication of a new name by combining existing names (e.g., transferring a species to another genus).

A marketing name for a plant cultivar, not necessarily its scientific or registered name.