Bothriochloa ischaemum var. songarica (Rupr. ex Fisch. & C.A. Mey.) Celarier & Harlan (King Ranch bluestem )

 


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Family: Poaceae (Grass Family)

Synonym(s): Andropogon ischaemum L. var. songaricus (Rupr. ex Fisch. & C.A. Mey)

Duration: Perennial

Habit: Grass/Grasslike


Listed by:
Invasive Plant Atlas of the US: 1
Federal Noxious Weed: 0
TDA Noxious Weed: 0
TPWD Prohibited Exotic Species: 0

Description: Cespitose grass with erect or decumbent-spreading culms 30-60cm tall, rounded sheaths and flate blades; inforescence a terminal panicle, spikelets on few to several spicate primary branches. Panicle axis shorter than the branches; sessile spikelets never pitted.

History: Widely planted for grazing and on roadsides.

Biology & Spread: Primarily spread intentionally by man for cattle forage and as a component of roadside vegetation. Reproduces by seeds.

Ecological Threat: Very serious ecological threat due to widespread planting by ranchers and highway departments.

US Habitat: Disturbed mesic, upland soils.

Distribution

US Nativity: Introduced to U.S.

Native Origin: Europe, North Africa (Bailey, L.H. and E.Z. Bailey, Hortus Third: A Concise Dictionary of Plants Cultivated in the United States and Canada, MacMillan Publishing Co., Inc., New York , (1977).); NatureServe Explorer

US States: AL, AR, AZ, CA, CO, FL, KS, LA, NM, NY, OK, PR, SC, TN, TX, UT, VI

Resembles/Alternatives:

Management: Timely mowing, burning and herbicide application all suppress this species.

USE PESTICIDES WISELY: ALWAYS READ THE ENTIRE PESTICIDE LABEL CAREFULLY, FOLLOW ALL MIXING AND APPLICATION INSTRUCTIONS AND WEAR ALL RECOMMENDED PERSONAL PROTECTIVE GEAR AND CLOTHING. CONTACT YOUR STATE DEPARTMENT OF AGRICULTURE FOR ANY ADDITIONAL PESTICIDE USE REQUIREMENTS, RESTRICTIONS OR RECOMMENDATIONS. MENTION OF PESTICIDE PRODUCTS ON THIS WEB SITE DOES NOT CONSTITUTE ENDORSEMENT OF ANY MATERIAL.

Listing Source

Texas Department ofAgriculture Noxious Plant List
Texas Parks and Wildlife Department Prohibited Exotic Species
Invaders Program
Federal Noxious Weed
Union of Concerned Scientists
United States Forest Service Southern Research Station

Text References

USDA, NRCS. 2006. The PLANTS Database (http://plants.usda.gov, 7 November 2006). National Plant Data Center, Baton Rouge, LA 70874-4490 USA. (http://plants.usda.gov/java/profile?symbol=BOISS)

Data Source

Last Updated: 2006-10-09 by LBJWFC