Influence of polyploidy on morphology and distribution of the Cypress Spurge (Euphorbia cyparissias, Euphorbiaceae).

Polyploidy can cause differences in phenotypic and physiological traits among different cytotypes of the same species. Polyploids may have larger organs or occupy different ecological niches than their diploid counterparts, therefore they are hypothesized to have larger distributions or prosper in stressful environments, such as higher elevations. The Cypress spurge (Euphorbia cyparissias L.

Disentangling Relationships among the Alpine Species of Sect. (Juncaceae) in the Eastern Alps.

Polyploidisation, agmatoploidy and symploidy have driven the diversification of sect. . Several morphologically very similar species with different karyotypes have evolved, but their evolutionary origins and relationships are unknown.