Macarenia clavigera is a species of aquatic plant that is unique to the Caño Cristales River. It is a submerged plant that grows on the riverbed during the dry season when the water level is low and the river is exposed to sunlight.
The plant has several distinctive features that allow it to thrive in the river’s unique environment. Its bright red color is due to the presence of pigments called carotenoids, which absorb blue and green light and reflect red and orange light. This gives the river its distinctive red color.

geologyscience.com
The plant has several distinctive features that allow it to thrive in the river’s unique environment. Its bright red color is due to the presence of pigments called carotenoids, which absorb blue and green light and reflect red and orange light. This gives the river its distinctive red color.


The Caño Cristales River, River of Five Colors" or Liquid Rainbow
The Caño Cristales River, also known as the "River of Five Colors" or the "Liquid Rainbow", is a stunningly beautiful natural wonder located in the Serrania de la Macarena mountain range of Colombia. It is a unique river with a length of approximately 100 km, that is known for its vibrant...
