Iris bloudowii Ledebour (1830: 5

Alexeeva, Nina B., 2018, A taxonomic revision of Iris section Psammiris (Iridaceae) in Russia, Phytotaxa 340 (3), pp. 201-216 : 207

2. Iris bloudowii Ledebour (1830: 5 & tab. 101).

≡ I. flavissima α umbrosa Bunge (1829: 60) , repl. syn.; ≡ I. flavissima var. bloudowii (Ledeb.) Baker (1892: 29) .

Lectotype (designated by Alexeeva 2012: 416):—KAZAKSTAN. Ad Grammatucham. 4 May 1826, Nº 95, Bloudowii m. Hb. Ledebour

(LE 01010770!) ( Fig. 4).

Description: — Rhizome short, form loose clumps. Leaves 25–30 × 0.6–1.8 cm, green, sickle-shaped. Flower scape 20 cm high, with the base surrounded by many old leaves that persist as a sheath-like membrane. Bracts herbaceous, green, swollen. Flowers yellow, with brown-veined patterns on the falls. Perianth tube short, more or less equal to the ovary. Capsule fusiform, on a stalk and more than 15 mm long; seeds 5.8 × 3.5 mm, dark brown.

Phenology: —Flowering in May, fruiting in late June.

Distribution: —It is widely distributed in Russia, but is represented by relatively small populations in Western and Central Siberia. Its range also extends into China, Mongolia and Northeast Kazakhstan.

Habit and ecology: — Iris bloudowii occurs in the lower alpine zone, growing in alpine meadows. At lower elevation within the forest zone, it is found in meadows, on slopes, forest fringes, and in the valleys of mountain rivers. Populations also exist occurring on dry, sandy soils of southern slopes (Transbaikal region).