Holcus
Holcus is a genus of African and Eurasian plants in the oat tribe within the grass family.
Holcus species are used as food plants by the larvae of some Lepidoptera species including Coleophora lixella.
; SpeciesHolcus annuus - Mediterranean and nearby areas from Portugal + Morocco to CaucasusHolcus azoricus - Azores - possibly a hybrid of H. lanatus and H. rigidusHolcus caespitosus - Sierra Nevada in southern SpainHolcus gayanus - Spain, PortugalHolcus grandiflorus - SpainHolcus × hybridus - France, Germany, British Isles -- H. lanatus × H. mollisHolcus lanatus - Europe, Mediterranean + nearby areas from Iceland to Canary Isles to Caucasus; naturalized in North + South America, Australia, New Zealand, East Asia, various islandsHolcus mollis - Algeria, Tunisia, most of Europe; naturalized in Australia, new Zealand, scattered locales in North AmericaHolcus notarisii - Macedonia, ItalyHolcus rigidus - AzoresHolcus setiger - Cape Prov of South Africa
; formerly included
Several species now regarded as better suited to other genera; ''Andropogon Arrhenatherum Arundinella Bothriochloa Capillipedium Centotheca Chasmanthium Chrysopogon Deschampsia Heteropogon Hierochloe Pennisetum Pentameris Pseudoraphis Rostraria Sorghum Sporobolus Ventenata''