Bothriochloa ischaemum

Bothriochloa ischaemum
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Clade:	Commelinids
Order:	Poales
Family:	Poaceae
Subfamily:	Panicoideae
Genus:	Bothriochloa
Species:	B. ischaemum
Binomial name
	Bothriochloa ischaemum; (L.) Keng
Varieties
	B. i. var. ischaemum; B. i. var. songarica (Rupr. ex Fisch. & C.A.Mey.) Celarier & J.R.Harlan;
Synonyms
	List Amphilophis ischaemum (L.) Nash; Andropogon angustifolius Sm. nom. illeg.; Andropogon annulatus J.A.Schmidt nom. inval.; Andropogon articulatus Dulac nom. illeg.; Andropogon digitatus St.-Lag. nom. illeg.; Andropogon ischaemum L.; Andropogon panormitanus Parl.; Andropogon patulus Moench; Andropogon pertusus var. panormitanus (Parl.) Hack.; Andropogon taiwanensis Ohwi; Andropogon undulatus Pers.; Andropogon villosus Lam. nom. illeg.; Bothriochloa ischaemum (L.) Mansf.; Bothriochloa ischaemum (L.) Henrard; Bothriochloa panormitana (Parl.) Pilg.; Bothriochloa taiwanensis Ohwi nom. inval.; Dichanthium ischaemum (L.) Roberty; Digitaria collina Salisb. nom. inval.; Ischaemum dactyloideum Montandon; Sorghum ischaemum (L.) Kuntze; Sorghum villosum (Lam.) Kuntze nom. illeg.; ;

Bothriochloa ischaemum is a species of perennial grass in the family Poaceae, found throughout much of the world. It is commonly known as yellow bluestem. Two varieties are recognized, of which Bothriochloa ischaemum var. ischaemum is native to Europe, Asia, and Africa and naturalized elsewhere,^[2] and var. songarica is native to Asia and naturalized elsewhere.^[3] Var. songarica is an invasive weed in Texas, where it is known as "King Ranch bluestem"; it has displaced native grasses in large areas of central and south Texas.^[4]