What wild plant feeds are suitable for ducks

Vallisneria

Also known as Yao flat grass and tape grass. It has slender creeping stems; leaves are basal, thin and strap-shaped, up to 2 m long, 8--14 mm wide, green and semi-transparent. It commonly grows in the quieter water on both sides of small river channels and around lakes.

Hydrilla

Also known as water king ginseng and water lantern grass. Stems are 0.5--1.5 m long with few branches; leaves are in whorls of 4--8, strap-shaped and lanceolate, 1--2 cm long, about 1.5--2 mm wide, with small teeth along the edges and a distinct midrib. It grows in ponds, lakes and ditches.

Hornwort

Commonly known as goldfish weed. A perennial aquatic herb, the plant is submerged in water, with the tip sometimes slightly exposed above the surface. The stem is smooth and slender, up to 60 cm long, with sparse short branches; leaves are whorled, with scattered spine-like fine teeth along the edges, and the teeth are mostly on one side. It grows in the still water of small lakes, and is also often seen in ponds and ditches.

Salvinia leaves

The stem of Salvinia lies horizontally in the water and has no roots; leaves are whorled at the nodes, three to a whorl, of which two are floating leaves, long-elliptic, with rounded blunt tips and a shallow-water-shaped base, with bristles on the veins and brownish hairs on the underside of the leaves. It grows on the water surface of ponds, rice fields, ditches and quiet small rivers, and is the aquatic weed that ducklings like to eat most.