Kyllinga melanosperma
Kyllinga melanosperma is a species of sedge, covered with dark brown scales that culm together to form rhizomes that are about  long. The rhizomes are  thick with a purple-brown sheath at the bottom. Kyllinga melanosperma is found in tropical Africa, southern and southeastern Asia. Kyllinga melanosperma propagates by seed. References

melanosperma
Plants described in 1834