Botany Dictionary

  • Orthotropism

    Orthotropism

    The tendency of a plant to grow in a straight line or vertical direction in response to external stimuli.

  • Odd-pinnate

    Odd-pinnate

    A term describing a compound leaf with leaflets arranged on both sides of a central axis, ending in a single…

  • Odoriferous

    Odoriferous

    Describing a plant or flower that emits a distinctive odor or fragrance.

  • Offset

    Offset

    A small, vegetative shoot that develops from the base of a plant, often used for asexual reproduction.

  • Oid

    Oid

    A suffix used to denote similarity or resemblance to something, often used in botanical terms.

  • Old

    Old

    Describing a plant or organism that is aged or mature, typically referring to older stages of growth or development.

  • Old world

    Old world

    A term used to describe plants or organisms native to Europe, Asia, and Africa, as opposed to the ‘New World’…

  • Oligo-

    Oligo-

    A prefix meaning ‘few’ or ‘scant’, used in botanical terms to refer to a small number of parts or elements.

  • Olim

    Olim

    A term used in botanical literature meaning ‘formerly’ or ‘in the past.’

  • Olivaceous

    Olivaceous

    Describing a color that is olive-like, typically a yellow-green or gray-green shade.