Johnson grass


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Johnson grass

or john·son·grass (jŏn′sən-grăs′)
n.
A tall rhizomatous perennial grass (Sorghum halepense) native to the Mediterranean region, sometimes cultivated for forage but widespread as a weed.

[After William Johnson (died 1859), American agriculturalist.]

Johnson grass

or

johnsongrass

n
(Plants) a persistent perennial Mediterranean grass, Sorghum halepense, cultivated for hay and pasture in the US where it also grows as a weed. See also sorghum
[C19: named after William Johnson (died 1859), American agriculturalist who introduced it]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Johnson grass - tall perennial grass that spreads by creeping rhizomes and is grown for fodderJohnson grass - tall perennial grass that spreads by creeping rhizomes and is grown for fodder; naturalized in southern United States where it is a serious pest on cultivated land
sorghum - economically important Old World tropical cereal grass
References in periodicals archive ?
We recorded that the porcupine excavates and consumes subterranean organs of Johnson grass (Sorghum halepense), purple nutsedge (Cyperus rotundus), stumps of shisham (Dalbergia sissoo) and clipping of its saplings.
eggs Plant tested Mean SD Range Mean SD Range Soybean 11.4a 1.8 9-14 300a 101.7 181-418 Kudzu 11.0a 2.9 8-15 247a 47.5 189-312 White sweet clover 6.6b 1.3 5-8 164b 31.4 114-192 White clover 5.2b 1.4 4-7 139b 51.4 88-224 Red clover 2.0c 1.8 0-4 25c 10.4 14-40 Alfalfa 1.8c 1.9 0-5 22c 6.2 15-31 Perennial peanut 1.0c 1.1 0-2 9.0d 4.5 4-15 American joint vetch 1.0c 1.3 0-2 7.6d 1.8 5-10 Partridge pea 0 0 0 0 0 0 Rattlepods 0 0 0 0 0 0 Corn 0 0 0 0 0 0 Sorghum 0 0 0 0 0 0 Bell pepper 0 0 0 0 0 0 Stylo 0 0 0 0 0 0 Garden pea 0 0 0 0 0 0 Florida beggarweed 0 0 0 0 0 0 Tomato 0 0 0 0 0 0 Crisom clover 0 0 0 0 0 0 Johnson grass 0 0 0 0 0 0 Perennial ryegrass 0 0 0 0 0 0 Hairy indigo 0 0 0 0 0 0 No.
Very bad actors that should be controlled include Bermuda grass, Johnson grass and nut sedge.
Within a 0.1-[m.sup.2] quadrat we estimated percentage of ground occupied by bare ground, little bluestem, other grasses (indiangrass, buffalo grass [Buchloe dactyloides], Johnson grass [Sorghum halepense], hairy grama [Bouteloua hirsuta], and others), dicot forbs, and tree canopy as falling into one of seven categories: 0%, 1-5%, 6-25%, 26-50%, 51-75%, 76-95%, or 96-100%.
First I had to get rid of all the Johnson grass. It was about four feet high and covered the entire garden.
The following were the different biomass samples tested: Bermuda Grass, Centipede Grass, Corn Leaves, Crabgrass, Fescue Grass, Johnson Grass, Pigweed, Spurge Weed, and Zoysia Grass.
In contrast, the widespread presence of Johnson grass, which was found in all plots, represents a pressing concern.
cuneata) have been established in some areas; and patches of Johnson grass (Sorgum halepense) occur on deeper soils.
Grasses took the cake among the top 10 worst weeds in home gardens with four representatives: crab grass, Bermuda grass, quack grass and Johnson grass. Dishonorable mentions included docks, lamb's-quarters, knotweed and poison ivy.
Vegetation of the grassland sections is dominated by little bluestem (Schizachyrium scoparium), big bluestem ( Andropogon gerardii), lndiangrass ( Sorghastrum nutans), hairy grama (Bouteloua hirsuta), side oats grama (Bouteloua curtipendula), Johnson grass (Sorghum halepense, a non-native species) and southern dewberry (Rubus trivialis).
When the cotton and corn started growing, so did the weeds and Johnson grass. It was difficult, if not impossible, to keep the mules and the cultivator on top of the high ridges for the first plowing.
I felt like I was hearing everything around us at a volume louder than things needed to be-tires on the road, racoon and possum rustling through Johnson grass, calls of what I wanted to be birds, but could imagine as people, lost, and wandering the dark.

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