Smooth Crabgrass (Digitaria ischaemum)

Origin: Native to North America
Use: Annual, warm season, native grass.
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Plant Description:
General   
Life Span  Annual
Growth Form  tall, erect to spreading, simple
Management:
Seeding Rate 
40" Rows:  Broadcast: 
 
Planting Date   
Planting Depth  
pH requirement  
Soil texture  Sandy: 
Loam: 
Clay: 
 
Cold Tolerance: High
General   
ID Features:
Habit: 		Annual.
Culms: 		15-50 cm. tall, erect or soon prostrate and rooting at the lower nodes, resembling D. sanguinalis.
Blades: 	1.5-13 cm. long, 2.5-6 mm., 4-10 cm. long, divergent in whorls, or approximate at the summit of the
		stems, the rachis with thin wings wider than the midrib.
Sheaths: 	Glabrous.
Ligule: 	Membranous.
Inflorescence: 	Spikelike racemes 2-6, 4-10 cm. long, divergent in whorls, or approximate at the summit of the
		stems, the rachis with thin wings wider than the midrib.
Spikelets: 	About 2 mm. long, 1-flowered, lanceolate-elliptic, in 2's, sessile or short-pediceled.
Glumes: 	First glume rudimentary or so thin as to be apparently wanting, the second glume and sterile lemma
		equal, densely short-villous between the nerves.
Lemmas: 	Sterile lemma 5-nerved; fertile lemma dark brown, pubescent with capitellate hairs, with a
		hyaline margin not inrolled.
Palea: 		Enclosed in the lemma.
Fruit: 		Grain.
Habitat: 	Waste places, fields and roadsides.  July-September.
Remarks: 	Often a troublesome weed.
Special Notes:
Smooth Crabgrass (Digitaria ischaemum) Information #1
Smooth Crabgrass (Digitaria ischaemum) Information #2