Erodium tataricum Willd.
Perennial; stemless; root thick like small fingers, brownish, apex crowded with petiole and stipules.
Leaves: Leaves 3-6 x 1.5-2cm long, lanceolate-ovate, pinnate, pinnae opposite, deeply pinnatifid, ultimate leaflets narrow linear entire but tip tripartite, no intercalary leaflets, usually hairless but can be rarely hairy, petiole pubescent.
Inflorescence: Peduncles 2-6 flowered, radical, pubescent and canescent; sepals pubescent, oblong, margin villose-ciliate, short mucronate; sepals 6-7 mm; mucro c. 1 mm; petals 8-16 mm, obovate, deep blue or violet, 2x calyx, 2 upper petals larger; fertile stamens glabrous; sterile filaments margin ciliate.
Fruit: Fruit 3.5-5cm; carpels 7mm; foveole without a fold; flowers July to August.
2n=
Distribution: endemic to Asia: Russia: Khakassia., Tatarstan Transbaikal In stony and gravelly steppes of 500-1000m.