Sisyrinchium

Sisyrinchium is a genus of herbaceous perennial plants in the iris family, Iridaceae. Commonly known as blue-eyed grasses, these plants are native to North and South America. The genus name Sisyrinchium is derived from Greek words meaning "two" and "donkey," referring to the plant's often bitter taste.

Plants in this genus typically feature slender, grass-like leaves that grow in basal clumps. The flowers are usually small and star-shaped, with six petals or tepals. While many species are noted for their blue or purple coloration, some varieties can have white or yellow flowers. The flowers typically appear in spring or early summer and are borne on slender, flattened stems that often have wing-like edges. Following flowering, they produce small, rounded capsules containing numerous seeds.

Sisyrinchium species are adapted to a variety of habitats, including meadows, prairies, woodlands, and coastal areas. Many species prefer moist to well-drained soils and full sun to partial shade. They are generally low-maintenance plants, often used in borders, rock gardens, or as ground cover. Several species are cultivated for their ornamental value, and some have been used in traditional medicine by indigenous peoples.