Involving parts of a plant used in growth, not reproduction.

A strand of vascular tissue in a leaf or other organ that transports nutrients and water.

A small vein or branch of a main vein in a leaf.

A spongy, multi-layered epidermis in orchid roots that absorbs water and nutrients.

Protective and absorptive root tissue found in epiphytic orchids.

A membranous covering or veil, especially in some ferns and fungi.

Swollen or inflated, usually in the middle, as in a corolla tube.

The arrangement of young leaves or leaf parts within a bud.

The way foliage is folded or rolled before it unfolds.

Having a shiny, varnished surface.