purple, violet, purple gromwell (Lithospermum erythrorhizon)...

Pyropia tenera (species of edible seaweed)

purple, violet

ultraviolet rays, ultraviolet radiation

bigleaf hydrangea (Hydrangea macrophylla), French hydrangea

dark purple, bluish purple

Medal of Honor with Purple Ribbon (awarded for scholarly or artistic achievement)

Medal of Honor with Purple Ribbon (awarded for scholarly or artistic achievement)

purple clouds on which Amitabha rides to welcome the spirits of the dead

purple smoke, tobacco smoke

ultraviolet, UV

shiso (Perilla frutescens var. crispa), perilla, beefsteak plant

Japanese royal fern (Osmunda japonica), Asian royal fern, flowering fern

purpura, purple spot

purple lightning, flash, swordflash

rosewood, red sandalwood

Bletilla striata (purple variety of orchid)

powdered oakblue (butterfly) (Narathura bazalus), purple martin (bird) (Progne subis)

gate of the imperial palace, imperial court, imperial palace

Soletellina diphos (species of clam)

gromwell root (of species Lithospermum erythrorhizon)

Purple Forbidden Enclosure (group of constellations in the northern sky associated with the emperor)

aster (Aster tataricus), Tartarian aster, Michaelmas daisy

aster (Aster tataricus), Tartarian aster, Michaelmas daisy

purple fleshed sweet potato (any one of several different such)

purple vestment (traditionally awarded by the imperial household), high-ranking priest's purple robe

Heliocidaris crassispina (species of sea urchin), Anthocidaris crassispina

purple rock cress (Aubrietia deltoidea)

purplish red

dark purple