紫色硫细菌

medium　purple

green-blue or purple lips and nails

purple-faced langur

purple coneflower;Echinacea purpurea Moench;Rudbeckia purpurea L.

alfalfa, lucerne, purple medick, {Medicago sativa} L.; 又称“苜蓿”。

purple soil

visual purple

purple passage