Iris koreana

Iris koreana, also known as Dwarf woodland Korean iris, is a beardless iris in the genus Iris, in the subgenus Limniris and in the Chinenses series of the species. It is a rhizomatous herbaceous perennial from Korea. Iris koreana is similar in form to (the larger) Iris minutoaurea and Iris odaesanensis, (both are also from the Iris chinensis series). William Rickatson Dykes thought that Iris koreana was a larger form of Iris minutoaurea, but Iris koreana is more robust than Iris minutoaurea. It is also similar to the American woodland native, Iris cristata. It has slender rhizomes that are small, long, fine and have many branches (or stolons).Due to its spreading ability, it is thought it could be used as a ground cover plant. It has narrow, smooth, glossy green, and ensiform (sword-shaped) leaves, that are long than the flowering stems. They grow up to 20–35 cm (8–14 in) long and 1–4 cm (0–2 in) wide. The leaves have prominent veins and are faintly tinged red at base (near the rhizome).Iris koreana and Iris minutoaureas also have the habit of their foliage growing longer after they have flowered. It has an unbranched stem, up to 15–30 cm (6–12 in) tall.It has 2 terminal flowers (at the top of the stems), that bloom in early summer, between April and May. It has a perianth tube that is longer than the spathes (leaves of the flower bud). The flowers are small, about 3 cm (1 in) in diameter.They come in yellow shades, between bright yellow to pale yellow.