Gratiola officinalis or is a marginal or shallow water aquatic pond or water gardening plant.

Gratiola officinalis which has no common name, is a marginal pond or aquatic plant perfect for planting in water six inches or so deep. The Gratiola officinalis will grow well in sun . It does not flower. The flower colour is pink and white. At maturity this pond plant will reach a height of about 1.3 feet. Does best in water depth: very shallow

List of water lilies

Great article about oxygenators

List of floating plants for garden ponds

List of marginal aquatic plants for ponds and water gardens

Other aquatic plant links

Gratiola officinalis or is a marginal or shallow water aquatic pond or water gardening plant.

Hippuris vulgaris or Mare's Tail is a marginal or shallow water aquatic pond or water gardening plant.

Hottonia palustris or Water Violet is a marginal or shallow water aquatic pond or water gardening plant.

Hydrocharis morsus ranae or Frog Bit is a marginal or shallow water aquatic pond or water gardening plant.

Iris pseudacorus or Common Flag is a marginal or shallow water aquatic pond or water gardening plant.

Lemna minor or Duckweed is a marginal or shallow water aquatic pond or water gardening plant.

Ligularia tangutica or Golden Rays is a marginal or shallow water aquatic pond or water gardening plant.