Category: A

  • Alpine

    Used of plants or vegetation specific to the high mountains above the tree line. A plant from high mountain regions, usually from above the treeline and hence herbaceous or a very compact shrub, and adapted to overwintering beneath deep snow where they remain moist and are protected from extremely low temperatures.  

  • Alpha-taxonomy, α-taxonomy

    The most fundamental taxonomy: finding, describing and grouping organisms.  

  • Alluvial

    Of areas composed of sand or clays deposited by a river.  

  • Allotropous

    (Of flower) with nectar available to any visiting insect.  

  • Allotetraploid

    A polyploid formed from a combination of two genetically different genomes (usually considered to originate from two different species): AABB as opposed to autotetraploid, AAAA. An organism with four genomes derives from hybridization of different species. Usually, in forms that become established, two of the four genomes are from one species and two are from…

  • Allopolyploid

    A polyploid of hybrid origin, with sets of chromosomes from more than one species. In genetics, an organism with more than two sets of chromosomes in its body cells, derived from different species.  

  • Allopatric

    Of related taxa that do not overlap in geographical range.  

  • Allomorphic

    Of an unusual form [rare term].  

  • Allogamy

    Fertilised after pollination by pollen from another individual; cross-fertilisation.  

  • Allogamous

    Fertilised after pollinisation by pollen from another individual.