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Summary

Hyparrhenia is a genus of grasses. Many species are known commonly as thatching grass.
They are mostly native to tropical Africa; some can be found in warmer areas in temperate Eurasia, Australia, and Latin America. These are annual and perennial bunch grasses. The inflorescence branches into twin spikes of paired spikelets.

Species
Hyparrhenia anamesa - dry Africa from Ethiopia to Cape Province
Hyparrhenia andongensis - Angola
Hyparrhenia anemopaegma - Zambia
Hyparrhenia anthistirioides - dry Africa from Eritrea to Malawi
Hyparrhenia arrhenobasis - Ethiopia
Hyparrhenia bagirmica - West Africa
Hyparrhenia barteri - from Burkina Faso to Malawi
Hyparrhenia bracteata - Africa (from Mali to Zimbabwe), Thailand, Vietnam, New Guinea, Latin America (from Veracruz to Paraná)
Hyparrhenia claytonii - Ethiopia
Hyparrhenia coleotricha - Eritrea, Ethiopia, Sudan, Tanzania, Yemen
Hyparrhenia collina - dry Africa from Nigeria to Ethiopia to KwaZulu-Natal
Hyparrhenia confinis - tropical Africa from Zaïre to Ethiopia
Hyparrhenia coriacea - Central African Rep
Hyparrhenia cyanescens from Gambia to Zaïre
Hyparrhenia cymbaria - Africa, Madagascar, Comoros, India
Hyparrhenia dichroa - from Djibouti to KwaZulu-Natal
Hyparrhenia diplandra - tropical Africa, southern China, Thailand, Vietnam, Sulawesi
Hyparrhenia dregeana - from Yemen and Eritrea to Eswatini
Hyparrhenia dybowskii - Zaïre, Central African Rep
Hyparrhenia exarmata - from Mali to Kenya
Hyparrhenia familiaris - from Guinea to Angola
Hyparrhenia figariana - from Nigeria to Tanzania
Hyparrhenia filipendula - from Guinea to KwaZulu-Natal; Madagascar, Yunnan, Sri Lanka, Philippines, New Guinea, Queensland, New South Wales
Hyparrhenia finitima - from Sierra Leone to Mpumalanga
Hyparrhenia formosa - from Ethiopia + Yemen to Malawi
Hyparrhenia gazensis - from Uganda to KwaZulu-Natal
Hyparrhenia glabriuscula - tropical Africa
Hyparrhenia gossweileri - Zaïre, Tanzania, Angola, Zambia
Hyparrhenia griffithii - Sudan, Kenya, Tanzania, Zambia, Madagascar, Yunnan, Assam, Myanmar, Vietnam
Hyparrhenia hirta - Africa, southern Europe, southwest Asia from France to Cape Province to Pakistan; naturalized in scattered sites in Australia, North + South America
Hyparrhenia involucrata - from Burkina Faso to Congo Rep
Hyparrhenia madaropoda - from South Sudan to Mozambique
Hyparrhenia mobukensis - from Ethiopia to Malawi
Hyparrhenia multiplex - Ethiopia + Sudan
Hyparrhenia neglecta - Ethiopia
Hyparrhenia newtonii - Africa (from Guinea to Eswatini), Madagascar, China, Southeast Asia, New Guinea
Hyparrhenia niariensis - from Cameroon to Zambia
Hyparrhenia nyassae - tropical Africa, Madagascar, Thailand, Vietnam
Hyparrhenia papillipes - Ethiopia, Kenya, Uganda, Yemen, Tanzania, Madagascar
Hyparrhenia pilgeriana - from Ethiopia to KwaZulu-Natal
Hyparrhenia pilosa - Central African Rep
Hyparrhenia poecilotricha - from Guinea to KwaZulu-Natal
Hyparrhenia praetermissa - Sulawesi
Hyparrhenia quarrei - from Yemen to Nigeria + KwaZulu-Natal
Hyparrhenia rudis - tropical Africa, Madagascar
Hyparrhenia rufa - tropical - southern Africa; Yunnan, Myanmar, Thailand; naturalized in Florida, Texas, Latin America (from Chihuahua to Paraguay); various islands in Caribbean, Pacific, Indian Ocean
Hyparrhenia schimperi - from Ethiopia to Cape Province; Madagascar
Hyparrhenia smithiana - from Guinea to Congo Rep
Hyparrhenia subplumosa - from Guinea to Zimbabwe
Hyparrhenia tamba - from Eritrea to Lesotho
Hyparrhenia tuberculata - Ethiopia
Hyparrhenia umbrosa - from Nigeria to KwaZulu-Natal; Comoros
Hyparrhenia variabilis - from Yemen + Eritrea to KwaZulu-Natal; Comoros, Madagascar
Hyparrhenia violascens - Burkina Faso, Nigeria, Chad, Cameroon
Hyparrhenia welwitschii - from Guinea to Zimbabwe; Comoros
Hyparrhenia wombaliensis - Cameroon, Congo Rep, Zaïre
formerly included
see Andropogon Elymandra Exotheca Hyperthelia Parahyparrhenia