Iris tubergeniana

Iris tubergeniana is a species in the genus Iris, it is also in the subgenus Scorpiris. It is a bulbous perennial from Central Asia, in the former states of USSR. It has pale green, pointed or sickle shaped leaves, short flowering stem holding 1-3 spring flowers in shades of yellow.

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Iris tubergeniana has a similar form to Iris orchioides and Iris caucasica. It has a slender bulb, about 2 cm thick, with cord-like roots. It has generally about 6 leaves, 2.5-3 in tall, 0.5-2 in wide (1.5-2.5 cm) at the widest point, which are almost fully mature at flowering time. They are pale green, - light glaucous green, pointed or sickle shaped, striated, with a margin. The margin is scabrous/horned. The short flowering stem is about 10–15 cm (4 in) high at flowering time. It has 1-3 flowers, blooming between March and April, which are unscented. It has a perianth tube measuring between 4.5–5 cm long, which is tinged slightly greenish purple. It has (5.6 cm wide) flowers, in shades of yellow, from deep yellow, to bright yellow to greenish-yellow. The falls are about 1.5in long, and have a frilled, dissected beard-like crest, with violet-green spots on the sides of the ridge. It has very small standards (about 10 mm). It has (a seed capsule) fruits which appear in late spring and early summer.