National Botanic Garden of Wales, United Kingdom

Common name: Sisirinciwm Melyn Mawr, Pale Yellow-eyed Grass, Yellow Mexican Satin Flower

Family: Iridaceae

Distribution: Argentina to Chile

Hardiness: (H4) Hardy-average winter -10 to -5°C (USDA 8b/9a)

Life form: Perennial plant • Planhigyn lluosflwydd

Geirdarddiad / Etymology: Sisyrinchium (sis-ee-RINK-ee-um): From the Greek sys- (pig) and -rynchos (snout) referring to the roots being consumed by swine.

Geirdarddiad / Etymology: striatum (stree-AH-tum): Striped or fluted.

Description: A clump-forming perennial, to 80cm tall, with fans of grey-green, narrow, linear to lance-shaped leaves. In summer, stiff, upright stems carry clusters of pale yellow, star-shaped flowers along their length.