钝背草 dun bei cao

Myosotis rupestris Pallas ex Georgi, Bemerkungen Reise Russe 1: 200. 1775; Amblynotus obovatus (Ledebour) I. M. Johnston; Eritrichium davuricum (Pallas ex Roemer & Schultes) Brand; E. maackii Maximowicz; E. obovatum (Ledebour) A. de Candolle; Myosotis davurica Pallas ex Roemer & Schultes; M. obovata Ledebour.

Stems several to numerous, erect, ascending or decumbent, slightly branched above, 6-8 cm tall, short strigose. Leaves densely strigose; basal and lower stem leaves narrowly spatulate, 0.7-1.5 cm × 2-3 mm, base attenuate to a slender petiole; upper stem leaves sessile, narrowly obovate to linear-oblanceolate, smaller. Inflorescences 1-3 cm, densely short strigose, several flowered; bracts narrowly obovate to linear-oblanceolate, but smaller. Flowers short pedicellate. Calyx lobes ca. 2 mm, not enlarged in fruit. Corolla blue; tube ca. 1.5 mm; throat appendages lunate, fleshy; limb ca. 5 mm wide; lobes spreading, obovate to rotund, ca. 2 mm, margin entire. Anthers ca. 0.9 mm. Style ca. 1 mm; stigma capitate. Nutlets light yellow-white, oblique ovate, 1.5-2 mm, adaxially longitudinally keeled, abaxially rounded, apex obtuse. Seeds brown, dorsiventrally compressed, ovate. Fl. Apr-Jul.

W Heilongjiang, Nei Mongol, W Xinjiang [Kazakhstan, Mongolia, Russia].