Trigonotis myosotidea (Maxim.) Maxim.

Plants perennial. Rhizomes creeping, black. Stem usually single or few, erect, 20-45 cm tall, sparsely short strigose, branched at apex; stem leaves oblong-lanceolate to lanceolate, 2.5-6 cm × 7-10 mm, sparsely short strigose or glabrescent, base narrowly cuneate, decurrent on a short narrowly winged petiole, apex acute. Inflorescences terminal on stems and branches, to 15 cm in fruit, reclinate, bracteate only at base. Pedicel ca. 5 mm, to 1 cm in fruit, recurved, rarely horizontal. Calyx lobes narrowly elliptic, ca. 1.5 mm, to 4-5 mm in fruit, sparsely short strigose, apex acute. Corolla light blue; tube ca. 1.8 mm; throat appendages short hairy, apex retuse; limb ca. 6 mm wide; lobes divaricate, broadly ovate, ca. 2.5 mm. Anthers elliptic, ca. 0.6 mm, base subcordate, apex obtuse. Nutlets dark brown, oblique subulate, trigonous-tetrahedral, shiny, glabrous, sessile, adaxial bottom surface smaller than 2 subequal lateral surfaces, margin narrowly ribbed, apex acute; abaxial surfaces flat or slightly concave, triangular, ca. 2 mm. Fl. and fr. Jul-Aug.

In tussocks in swamps, moist ditch banks. Hebei, Heilongjiang, Jilin, Liaoning [E Russia].

Eritrichium myosotideum Maximowicz, Prim. Fl. Amur. 203. 1859.

Trigonotis myosotidea là loài thực vật có hoa trong họ Mồ hôi. Loài này được (Maxim.) Maxim. miêu tả khoa học đầu tiên năm 1881.

水甸附地菜（学名：Trigonotis myosotidea）为紫草科附地菜属的植物。分布于俄罗斯以及中国大陆的东北、河北等地，生长于海拔300米至900米的地区，多生长于沼泽草甸和沟边湿地，目前尚未由人工引种栽培。