plagiotropic
/ˌpleɪdʒɪəˈtrɒpɪk/ /ˌpleɪdʒɪəˈtrəʊpɪk/Botany
adjective
Designating or relating to a plant part or organ that tends to take up an oblique or horizontal position with relation to the main axis, usually because its own parts react differently to the influence of external stimuli (such as light, gravity, etc.). Contrasted with orthotropic.
Origin
Late 19th century; earliest use found in Sydney Vines (1849–1934), botanist. From plagio- + -tropic, after German plagiotrop.