Category: A

  • Acrogynous

    With female flowers at the apex of the inflorescence.  

  • Acrogens or Acrogenous

    Growing only at the apex of the stem. The higher cryptogamous plants.  

  • Acrogenic

    Growing only at the apex of the stem.  

  • Acrodromous

    With two or more main veins starting at the base of the leaf, running parallel to the leaf margin and meeting (or almost meeting) at the apex.  

  • Acrocidal

    (Of a capsule fruit) dehiscing through terminal fissures [obscure term].  

  • Acquired

    Used of characters that arise during the lifetime of a plant as a result of environmental (not genetic) influences. Characteristics of a person that are not ascribable to heredity. Referring to a condition which is neither congenital nor hereditary and which a person develops after birth in reaction to his or her environment. Resulting from…

  • Acolyte

    Sterile male flower found with a fertile female flower as a flower pair in the inflorescence of Calamus (specialist term used in Palmae).  

  • Acinaciform

    Scimitar-shaped, thin and curved with pointed apex [unusual term].  

  • Aciculate

    Of surface, with fine lines, as if scratched.  

  • Acicular

    Acicular

    Needle-shaped; very narrow, stiff, and pointed (usually said of leaf tips). Which is either a plane (twodimensional shape) or a solid (three-dimensional shape).