A joint on a stem. May be represented by the point of origin of a leaf or bud, a swollen or constricted ring, or by a distinct leaf scar. Refers to a bulb without a naturally occurring tunic. O Offset . A lateral shoot or branch which develops from the base of the main stem in certain plants.
Many bulbs produce offsets from their bases.
An alternative term generally equivalent to offset. Applies to lateral branches on stems of monocots. Date palm, pineapple, banana, and orchids produce offshoots. P Pachymorph . A thick, fleshy rhizome that is short in relation to its diameter.