4. Seseli nortonii Fedde ex H. Wolff, Repert. Spec. Nov. Regni Veg. 27: 329. 1930.
西藏西风芹 xi zang xi feng qin
Plants 30–50 cm. Caudex simple. Stem solitary, hollow, tawny or purplish, shiny, hispidulous, much-branched above. Basal leaves many, petiole sheaths broadly ovate, hispidulous, scarious-margined; blade broadly rhombic, 2-pinnate; ultimate segments ovate, 10–15 × 6–11 mm, 3-lobed, parted or sub-pinnate, serrate, white hispid on both surfaces and leaf-rachis, especially margins and veins abaxially. Umbels 8–12 cm across; bracts 5–7, lanceolate, shorter than rays, densely white-hispid; rays ca. 10, 3.5–6 cm, unequal; bracteoles numerous, similar to bracts; umbellules many-flowered; pedicels 1.5–5(–7) mm. Calyx teeth subulate, ca. 0.1 mm. Petals white, costa deep yellow, suborbicular, with a broadly inflexed apex, abaxially white-hispid. Stylopodium low-conic; style short, erect. Fruit narrowly ellipsoid, dorsally compressed, 5.5–6 × 2–2.5 mm, densely hispid; vittae 1 in each furrow, 2 on commissure. Fl. and fr. Jun–Aug.
River banks, among stones; ca. 4000 m. Xizang (Kadah He).
This poorly known taxon is recorded only from the type. The subulate calyx teeth are atypical in the current circumscription of Seseli, and two of us (Pimenov and Kljuykov) consider this species should be included within Eriocycla nuda.
Two of us (Pimenov & Kljuykov, FOC 14: 129. 2005) treat this as Seseli nudum.