viridiflorus

viridiflorus (m)
viridiflora (f)
viridiflorum (n)

Derives from the Latin adjective “viridis” which means “green”, plus “i” the connective vowel used by botanical Latin and the past participle “florus” meaning “to bloom, to flower”

( The specific name implies: "green flowered").

(For example Echinocereus viridiflorus )