Hedysarum hedysaroides, common name Alpine Sainfoin, is a perennial herb belonging to the family Fabaceae. The stems are erect to sprawling and branched, growing 50 to 120 centimeters in height, with the lower sections being woody. The dark green, diamond-shaped leaves are arranged alternately along the stem, 4 to 8 centimeters long, with petioles that are less than a third of the length of the leaves. The leaves are paler below, with short, grayish hairs. The apical half of the leaves have toothed or serrated margins while the remainder of the leaves are entire (untoothed). The petioles have small spiny stipules at their bases.
Arrowleaf sida stems are used as rough cordage, sacking, and for making brooms.