Pentorum sidoides

Penthorum sidoides or Penthorum sedoides, scientific name Penthorum sedoides. In nature, it is widely distributed in the eastern part of North America from Canada to the southern states of the USA. It grows along the banks of swamps, ditches and other bodies of water with stagnant water.

Since 2014, it has been classified as an aquarium plant after its ability to grow submerged was established. Prior to that, it was used to decorate the edge of garden ponds, and was grown in botanical gardens.

In the surface position, it forms an upright shrub 30–60 cm high with a strong stem with alternately arranged leaves. Leaf blade lanceolate with serrated edges. It blooms with small cream, greenish or reddish flowers. In the cold season, it hibernates as a creeping rhizome, the stems die off.

Under water it also forms an upright bush, but smaller, densely covered with light green leaves. The surface of the leaf blade is smooth, the edge is slightly serrated.

Grows slowly when submerged. Pentorum sidoides is considered an unpretentious plant. Perfectly adapts to a wide range of conditions, including cool water. Does not need additional feeding.