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Strickland, Sam C.
Digitaria cognata (Schult.) Pilg.
Carolina crabgrass, Fall witchgrass
Poaceae (Grass Family)
Synonym(s): Digitaria cognata var. cognata, Leptoloma cognatum
USDA Symbol: dico6
USDA Native Status: L48 (N), CAN (N)
Plant: Knotty at base, open panicles of spikelets on slender, spreading branches and pedicles.
Culms: 30-80 cm. tall, much-branched at base.
Inflorescence: Breaks off to form a tumbleweed.
Bloom InformationBloom Color:
Green , Brown Bloom Time:
May , Jun , Jul , Aug , Sep , Oct Bloom Notes: Fruit
pale or in some populations turning brown or blackish.
, WI Canada: ON Native Distribution:
Texas: Nearly throughout, most abundant on the Coastal Plain and in north-central Texas, frequent elsewhere.
U.S.A.: New Hampshire to Minnesota, south to Florida and Texas, west to Arizona. Native Habitat:
Loose sandy prairies.
Growing ConditionsLight Requirement: Sun , Part Shade , Shade
Soil Moisture: Dry
Larval Host: The Grass Family is an essential larval host for most branded skippers and most of the satyrs.
Deer Resistant: High
PropagationPropagation Material: Seeds
Seed Treatment: No special pre-treatment.
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Brackenridge Field Laboratory
- Austin, TX
Herbarium Specimen(s)NPSOT 0979
Collected Nov 4, 1994 in Bexar County by Mike Fox
Wildflower Center Seed BankLBJWC-43
Collected 2006-11-03 in Travis County by Lady Bird Johnson Wildflower Center
Record Last Modified: 2007-10-03
Research By: TWC Staff