«Pulsatilla herba-somnii Stepanov sp. nov. (рис. 1, C, D / Figure 1, C, D).
Caules 25–30 cm alt. Folia radicalia, synanthia, longipetiolata, laminis plus minusve rotundato-ovatis, pinnatim sectis, bilaciniatis; laciniae laminarum brevipetiolatae, 2-dissectae lacinis dentatis ordinis secundi 1.5–3.5 mm lat. Flores intrinsecus pallide-flavi, extrinsecus violaceo-caerulei, campanulati. Tepala 2.5–3.5 cm lg., 1.3–1.7 cm lat., oblongo-ovata vel lanceolata. Fructiculi pilosi aristis plumosis.
Typus: Prov. Krasnojarskij, distr. Ermakovskij, viridarium nationale "Ergaki", vallis fl. Us prope stationem Idzhim, steppa petrosa. 05.05.2011. N.V. Stepanov (Holotypus – KRSU; isotypi – TK, LE).
Paratypi: Urbs Krasnojarsk, insula Ostrov Otdycha, area petrosa ad viam. 27.07.2001. N.V. Stepanov (KRSU); Там же, 31.05.2000. N.V. Stepanov (KRSU); Urbs Krasnojarsk, prope Akademgorodok, declive stepposum, petrosum. 16.05.1999. N.V. Stepanov (KRSU); prope urbem Krasnojarsk, ad finis borealem reservati "Stolby", vallis fl. Laletina, ad rupem Tschertov Palets, declive austro-occidentale, steppa petrosa. 15.05.1999. N.V. Stepanov (KRSU).
Affinitas. A speciebus propinquis Pulsatilla orientali-sibirica Stepanov et Pulsatilla turczaninovii Krylov et Serg. floribus bicoloribus et foliis bipinnatis laminis ovatis differt.
Stems 20–30 cm tall. Basal leaves develop during flowering, long-petiolate, with rounded-oval pinnatisect parts; share of leafs are short, double-lobed; share of second order of 1.5–3.5 mm wide, toothed incised. Flowers are pale-yellow inside and violet-blue outside, bell-shaped. Tepals are 2.5–3.5 cm long, 1.3–1.7 cm wide, oblong-ovate to lanceolate. Fruitlets are pubescent with long pinnate aristae.
Type: Krasnoyarsk region, Yermakovskiy district, the natural park "Ergaki", valley of the Us river, in areas station Idzhim, rocky steppe. 05.05.2011. N.V. Stepanov (Holotype – KRSU; isotypes – TK, LE).
Paratypes: Krasnoyarsk, Ostrov Otdukha isle, rocky site near the road. 31.05.2000. N.V. Stepanov (KRSU); Krasnoyarsk, Akademgorodok, slope to the Yenisei, rocky steppe. 16.05.1999. N.V. Stepanov (KRSU); env. Krasnoyarsk, near the northern boundary of the reserve «Stolby», valley of Laletina river, the Chertov Paletz crag, southwestern slope, rocky steppe. 15.05.1999. N.V. Stepanov (KRSU).
Relationship. This taxon differs from closely related species (Pulsatilla orientali-sibirica Stepanov and Pulsatilla turczaninovii Krylov et Serg.) by bicolor flowers and twice pinnate leaves with oval lamina.»