Buglossoides arvensis (L.) I.M. Johnston

Buglossoides arvensis (L.) I.M. Johnston
Corn Gromwell, Field Gromwell, Bastard Alkanet, Stoneseed

Category
Forb/Herb

Description

An erect, winter annual or biennial forb/herb, branching at base; 2.0-7.0 dm tall.

Stem

Erect, 2.0-7.0 dm tall, slender, simple or branching at base, minutely roughened, pubescent, leafy at top.

Leaves

Alternate, 1.0-3.0 cm long, 10.0-15.0 mm wide, simple, entire, sessile, lanceolate to linear, pubescent on both sides.

Flowers

Inflorescences corolla white to cream or pale bluish white, funnel-shaped, with 5 rounded spreading lobes, 5.0-7.0 mm long, finely pubescent; sepals distinct, 5.0-7.0 mm long, remaining intact and surrounding fruit.

Fruit

Fruits formed as 4 small nutlets, 3.0-6.0 mm long, wrinkled, surrounded by intact sepals. Seeds are nutlets, 2.7-3.0 mm long, conical, rough, brown or grayish tan.

Images

Photo: Richard Old, XID Services, Inc., Bugwood.org
More images of Buglossoides arvensis

Life History

Habitat

Fields, waste areas, roadsides, and other disturbed areas

Origin and Distribution

Native to Asia and Europe, Corn gromwell can be found in the following states/territories: USA (AL, AR, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY), CAN (BC, MB, NS, ON, QC)

Synonyms

Lithospermum arvense L.

h2. Management Recommendations

Mechanical Controls

Tilling is an effective control measure, however if tilled after seed production, new corn gromwell plantings will emerge. Also, planting a competitive grass or another suitable cover crop is effective.

Herbicidal Controls

Corn gromwell is listed as susceptible to many herbicides. Herbicides used to control this plant are dependent on time of year and desirable species co-existing with corn gromwell. See specimen label for species specifics and application rates and timing.

Biological Controls

No known biological controls agents at this time

Bibliography

Bryson, C.T. and M.S. DeFelice, eds. Weeds of the South. 2009. University of Georgia Press, Athens. 118 pp.

Horn, Dennis; Cathcart, Tavia; Hemmerly, Thomas E.; Duhl, David; Wildflowers of Tennessee the Ohio Valley and the Southern Appalachians, The Official Field Guide of the Tennessee Native Plant Society, Lone Pine Publishing, 2005

Stevens County Noxious Weed Control Board, Colville, Washington; Corn Gromwell