Stenomesson chloranthum is a species of flowering plant in the amaryllis family, Amaryllidaceae.

[1] Alan Meerow and Henk van der Werff the botanists who first formally described the species, named it after its green (Latinized form of Greek χλωρός, khlōrós) flowers (Latinized form of Greek ἄνθος, ánthos).

The cluster of flowers is subtended by 2 pale green bracts that are 2.5-3 by 1-1.5 centimeters and come to a point at their tips.

Its flowers have a single thread-like style that is 6 centimeters long and topped by a 3-lobed stigma.

[2] Its low elevation habitat, 900 m (3,000 ft), is notable among Peruvian Stenomesson species.