Adventitious roots
Special terms
Roots that arise on various parts of the shoot (stem, leaves and their derivatives).
Glossary of terms
A reference section with categories and short explanations.
Aerial roots
Special terms
Adventitious roots that develop on aboveground shoots and, as a rule, do not reach the substrate. Common in epiphytic orchids, some aroids, etc. Their main function is the absorption of moisture from the air and photosynthesis (in the latt…
Alternate leaf arrangement
Special terms
The arrangement of leaves in which the leaves are not exactly opposite each other, but are staggered.
Alternate leaves
Special terms
Leaf arrangement in which there is only one leaf at each node of the stem.
Ampel plants
Special terms
These are plants with long hanging shoots, grown in hanging pots and baskets (циссус, традесканция, сеткреазия, многие пеперомии, хлорофитум, камнеломка и др.). The name itself, translated from German, means "hanging vase for flowers." Amp…
Ampelous rosette
Special terms
Type of rosette with a distinct main stem, producing lateral branches and hanging over the edge of the pot.
Annual
Special terms
A plant that completes its life cycle from seed to seed in one year.
Anther
Special terms
The upper part of the stamen, the pollen sac.
Aril (arillus)
Special terms
An outgrowth of the funiculus by which the seed is attached to the wall of the ovary. It may develop into a fleshy, brightly colored structure.
Axillary inflorescence, axillary flower
Special terms
An inflorescence or flower that develops in the axil of a leaf.