This plant is a terrestrial one. It love to grow on very humid soils,
but the flowers will only emerge after a period of drought.
This is why these plants can be seen at the end of the rainy season only.
The plants are rather small in size : they are about 15 to 20cm tall ; the raceme is stiff and glabrous.
The flowers are of a bright yellow, and the flower stalk is reddish,
with no variation in color from one plant to another.
U.guyanensis will build extended colonies but the individual plants are rather isolated one from eachother.
It is not easy to see but the inflorescences are growing after a spiral like pathern :
this give the raceme a mecanicaly induced strength
and so the plant do not need to build thick inflorescences to resist.
As seen on this picture, the soil is still muddy, and covered with thousands of leaves,
developped by houndreds of plants during the past rainy months.
Also, U.guyanensis love to grow in the lowest parts of the savana :
it's biotope is typicaly a flooded zone, relatively free from any grasses,
wich stays humid for many months, and wich dry out at the very end of the rainy season.
