Haematostemon
Haematostemon is a genus of plant of the family Euphorbiaceae first described as a genus in 1919. It is native to northeastern South America.
;Species
- Haematostemon coriaceus Pax & K.Hoffm. - Amazonas State in S Venezuela
- Haematostemon guianensis Sandwith - Potaro-Siparuni region of Guyana