Botany

• peristome

  (botany) fringe of toothlike appendages surrounding the mouth of a moss capsule.

• apophysis

  (botany) a natural swelling or enlargement: at the base of the stalk or seta in certain...

• callus

  (botany) an isolated thickening of tissue, especially a stiff protuberance on the lip of...

• blister

  (botany) a swelling on a plant similar to that on the skin.

• node

  (botany) the small swelling that is the part of a plant stem from which one or more leaves...

Also contains

• hair

  Filamentous hairlike growth on a plant; "peach fuzz".

• podetium

  An organ or body resembling a stalk; especially the outgrowth of the thallus of certain...

• aculeus

  A stiff sharp-pointed plant process.

• burl

  A large rounded outgrowth on the trunk or branch of a tree.

• nodule

  Small rounded wartlike protuberance on a plant.

• spur

  Tubular extension at the base of the corolla in some flowers.

• acumen

  A tapering point.

• haustorium

  A root-like attachment in parasitic plants that penetrates and obtains food from the...