Horseshoe Yellow

Horseshoe Yellow

　　　Horseshoe Yellow is a perennial herbaceous plant of the genus Horseshoe Yellow in the Rosaceae family, growing to a height of 10–30 cm. Its roots are thick, conical, and woody. The stem is upright, usually unbranched, and hairy. The basal leaves are odd-pinnate compound leaves with 5–10 pairs of leaflets, 5–16 cm long including the petiole, covered with white hairs, and the leaflets are sessile; the leaflets are oblong, entire.

　　It flowers from July to August, with numerous flowers forming a raceme; flower stalks are 1–2 cm long, and the bracts are often three-lobed; flowers are about 2 cm in diameter; sepals are ovate-lanceolate, and the epicalyx segments are united at the base into a short tube with 8–12 unequal small lobes. Petals are yellow, obovate-oblong, slightly longer than the sepals. The achene is nearly spherical, 3–4 mm in diameter, enclosed within the calyx tube.