Is Fern Ma cool or hot? The answer is: Fern Ma is cool. Hot or cool is what Chinese medicine says. Nutritionally speaking, there is no distinction between cold and hot foods. The basal leaves are compound leaves with discontinuous pinnate shapes. When blooming, they are obviously clustered, with 6-11 pairs of leaflets, opposite or alternate, with few or reduced stem leaves; petioles are subtended or semi-spreading, sparsely pubescent, sometimes shedding almost none. The leaflets are sessile or the terminal leaflet has a short stalk. The base of the uppermost pair of leaflets extends downward to merge with the leaf axis. The base leaflets gradually become smaller and lamellar; the basal leaf stipules are membranous, brown, and are connected to the petiole to form a sheath. The outer coat is sparsely pubescent or almost hairless. Potentilla anserina L. (scientific name: Potentilla anserina L.) is a perennial herbaceous plant of the genus Potentilla in the Rosaceae family. The roots extend downward, sometimes forming a spindle-shaped or oval-shaped tuberous root below the root. The stems are prostrate, take root at the nodes, and often grow new plants on the ground. The outer cover is dormant or half-spread, sparsely pubescent or shedding almost hairless.