Weeds ›

Broomsedge

Description

Broomsedge is a perennial weed frequently found in fields, along roadsides, and in openings to forests and pastures. It can be distinguished from other grasses by the flattened leaf sheaths which have obvious leaf hairs. Leaves with folded vernation arise from a basal crown. Immature plants are bluish-green, however mature leaves turn light brown and appear to be dry. These upright leaves remain standing throughout the year.

Cultural Control

Perennial grass weeds are not desirable as turfgrass species under any conditions. Therefore, every effort should be made to prevent these weedy grasses from becoming established in turf, as selective control measures are usually difficult. Selection of adapted turfgrass species and cultivars and the use of cultural practices are important in minimizing weedy grass encroachment and competition. Management practices include (1) mowing at the recommended height for the selected turfgrass and removing clippings when seedheads of grassy weeds are present; (2) applying the proper amount of nitrogen at the correct time according to the turfgrass present; and (3) using soil tests to determine needed nutrients and lime.

Presentations

Publications

Species Data

Seedhead/Flower

spikelets are in racemes of groups of 2-4

seedhead4
seedhead4
seedhead4
Vernation type

leaves folded in the bud

vernation
vernation
vernation
vernation2
vernation2
vernation2
Ligule Type

membranous; sharp pointed to collar-like, hairs along edge, no hairs on back of ligule

dscn0708
dscn0708
dscn0708
ligule
ligule
ligule
Growth Season/Life Cycle

perennial weed

Auricle type

absent

Leaf blade tip shape

sharp-pointed; flat, hairy near base above, smooth to rough below, edges rough and with hairs

vernation
vernation
vernation
Leaf blade width

0.1 - 0.28 inches (3 - 7 mm) wide

leafhair3
leafhair3
leafhair3
Stolon Presence

absent

Rhizome Presence

absent

Collar Type

divided; mostly hairy on edges

dscn0703
dscn0703
dscn0703
dscn1018
dscn1018
dscn1018
Sheath Margin

split with overlapping margins; sheath has long hairs on edges

dscn1030
dscn1030
dscn1030
hairy sheath2
hairy sheath2
hairy sheath2
sheathhairs
sheathhairs
sheathhairs
Sheath Type

very flattened, sharply creased

crown
crown
crown
hairystem
hairystem
hairystem
leafhair3
leafhair3
leafhair3