{{Taksokvir
| boja = lightgreen
| naziv = Sirak
| slika = Sorghum durra01.jpg
| slika_širina = 240px
| slika_opis = [[Sorghum vulgare var. sudanense|''Sorghum vulgare'' var. ''sudanense'']]
| regnum = [[Biljke|Plantae]]
| divisio = [[Cvjetnjače|Magnoliophyta]]
| classis = [[Liliopsida]]
| subclassis = [[Liliidae]]
| ordo = [[Poales]]
| familia = [[Poaceae]]
| subfamilia = [[Panicoideae]]
| genus = '''[[Sorghum]]'''
| species = '''S. vulgare'''
| dvoimeno = Sorghum vulgare
| dvoimeno_autorstvo = [[Hitchc.]]
|sinonimi = 
  {{collapsible list |
    {{plainlist | style = margin-left: 1em; text-indent: -1em; |
* ''Agrostis nigricans'' (Ruiz & Pav.) Poir.
* ''Andropogon besseri'' Kunth
* ''Andropogon bicolor'' (L.) Roxb.
* ''Andropogon caffrorum'' (Thunb.) Kunth
* ''Andropogon compactus'' Brot.
* ''Andropogon dulcis'' Burm.f.
* ''Andropogon niger'' (Ard.) Kunth
* ''Andropogon saccharatrus'' Kunth
* ''Andropogon saccharatus'' (L.) Raspail
* ''Andropogon sorghum'' (L.) Brot.
* ''Andropogon subglabrescens'' Steud.
* ''Andropogon truchmenorum'' Walp.
* ''Andropogon usorum'' Steud.
* ''Andropogon vulgare'' (Pers.) Balansa
* ''Andropogon vulgaris'' Raspail
* ''Holcus arduinii'' J.F.Gmel.
* ''Holcus bicolor'' L.
* ''Holcus cafer'' Ard.
* ''Holcus caffrorum'' (Retz.) Thunb.
* ''Holcus cernuus'' Ard.
* ''Holcus cernuus'' Muhl. nom. illeg.
* ''Holcus cernuus'' Willd. nom. illeg.
* ''Holcus compactus'' Lam.
* ''Holcus dochna'' Forssk.
* ''Holcus dora'' Mieg
* ''Holcus duna'' J.F.Gmel.
* ''Holcus durra'' Forssk.
* ''Holcus niger'' Ard.
* ''Holcus nigerrimus'' Ard.
* ''Holcus rubens'' Gaertn.
* ''Holcus saccharatus'' var. ''technicus'' (Körn.) Farw.
* ''Holcus sorghum'' L.
* ''Holcus sorghum'' Brot. nom. illeg.
* ''Milium bicolor'' (L.) Cav.
* ''Milium compactum ''(Lam.) Cav.
* ''Milium maximum'' Cav.
* ''Milium nigricans'' Ruiz & Pav.
* ''Milium sorghum'' (L.) Cav.
* ''Panicum caffrorum'' Retz.
* ''Panicum frumentaceum'' Salisb. nom. illeg.
* ''Rhaphis sorghum'' (L.) Roberty
* ''Sorghum abyssinicum'' (Hack.) Chiov. nom. illeg.
* ''Sorghum ankolib'' (Hack.) Stapf
* ''Sorghum anomalum'' Desv.
* ''Sorghum arduinii'' (Gmel.) J.Jacq.
* ''Sorghum basiplicatum'' Chiov.
* ''Sorghum basutorum'' Snowden
* ''Sorghum caffrorum'' (Retz.) P.Beauv.
* ''Sorghum campanum'' Ten. & Guss.
* ''Sorghum caudatum'' (Hack.) Stapf
* ''Sorghum centroplicatum'' Chiov.
* ''Sorghum cernuum'' (Ard.) Host
* ''Sorghum compactum'' Lag.
* ''Sorghum conspicuum'' Snowden
* ''Sorghum coriaceum'' Snowden
* ''Sorghum dochna'' (Forssk.) Snowden
* ''Sorghum dora'' (Mieg) Cuoco
* ''Sorghum dulcicaule'' Snowden
* ''Sorghum dura'' Griseb.
* ''Sorghum durra'' (Forssk.) Batt. & Trab.
* ''Sorghum elegans'' (Körn.) Snowden
* ''Sorghum eplicatum'' Chiov.
* ''Sorghum exsertum'' Snowden
* ''Sorghum gambicum'' Snowden
* ''Sorghum giganteum'' Edgew.
* ''Sorghum glabrescens'' (Steud.) Schweinf. & Asch.
* ''Sorghum glycychylum'' Pass.
* ''Sorghum guineense'' Stapf
* ''Sorghum japonicum'' (Hack.) Roshev.
* ''Sorghum margaritiferum'' Stapf
* ''Sorghum medioplicatum'' Chiov.
* ''Sorghum melaleucum'' Stapf
* ''Sorghum melanocarpum'' Huber
* ''Sorghum mellitum'' Snowden
* ''Sorghum membranaceum'' Chiov.
* ''Sorghum miliiforme'' (Hack.) Snowden
* ''Sorghum nankinense'' Huber
* ''Sorghum nervosum'' Besser ex Schult. & Schult.f.
* ''Sorghum nervosum'' Chiov. nom. illeg.
* ''Sorghum nigricans'' (Ruiz & Pav.) Snowden
* ''Sorghum nigrum'' (Ard.) Roem. & Schult.
* ''Sorghum notabile'' Snowden
* ''Sorghum pallidum'' Chiov. nom. illeg.
* ''Sorghum papyrascens'' Stapf
* ''Sorghum rigidum'' Snowden
* ''Sorghum rollii'' Chiov.
* ''Sorghum roxburghii'' var. ''hians'' (Hook.f.) Stapf
* ''Sorghum saccharatum'' Host nom. illeg.
* ''Sorghum saccharatum'' (L.) Pers. nom. illeg.
* ''Sorghum sativum'' (Hack.) Batt. & Trab.
* ''Sorghum schimperi'' (Hack.) Chiov. nom. illeg.
* ''Sorghum simulans'' Snowden
* ''Sorghum splendidum'' (Hack.) Snowden
* ''Sorghum subglabrescens'' (Steud.) Schweinf. & Asch.
* ''Sorghum tataricum'' Huber
* ''Sorghum technicum'' (Körn.) Batt. & Trab.
* ''Sorghum technicum'' (Körn.) Roshev.
* ''Sorghum truchmenorum'' K.Koch
* ''Sorghum usorum'' Nees
* ''Sorghum vulgare'' Pers. nom. illeg.
    }}
  }}
|synonyms_ref = <ref>{{Cite web|url=http://www.theplantlist.org/tpl/record/kew-443283|title=Sorghum bicolor (L.) Moench — The Plant List|website=www.theplantlist.org|access-date=6. 9. 2023|archive-date=13. 4. 2023|archive-url=https://web.archive.org/web/20230413232916/http://www.theplantlist.org/tpl/record/kew-443283|url-status=dead}}</ref>
}}
}}
'''Sirak''' (''Sorghum vulgare'') je prosolika žitarica iz roda [[Sorghum]], biljka kratkog dana.