johnsongrass
Sorghum halepense (L.) Pers.

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  1. Descriptor:           (show all)

    Plant(s) (43)
    Flower(s) (24)
    Feature(s) (18)
    Infestation (12)
    Root(s) (12)

  1. Commodity:         (show all)

    Weeds (149)
    Beans (6)
    Herbaceous (3)
    Onions (3)
    Understory and Rangeland Plants (3)

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  1. Author:                  (show all)

    Ohio State Weed Lab Archive (33)
    Chris Evans (20)
    Bruce Ackley (17)
    Steve Dewey (14)
    Howard F. Schwartz (11)

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Image Descriptor Description
5307057 Plant(s) Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 1: 121.
5309001 Plant(s) Hitchcock, A.S. (rev. A. Chase). 1950. Manual of the grasses of the United States. USDA Misc. Publ. No. 200. Washington, DC.
1459240 Root(s) Roots
2149092 Foliage Ligule
5376843 Fruit(s) Lateral view. Embryos facing left. FNW taxon.
5376842 Fruit(s) Caryopses in dorsal view (left) and ventral view (right). FNW taxon.
5376841 Spikelet(s) Spikelets with apices broken off. FNW taxon.
5376840 Spikelet(s) Portion of inflorescence (left); terminal spikelet with two pedicellate spikelets (middle); spikelet with pedicellate spikelet and rachis segment (right). FNW taxon.
5376839 Spikelet(s) Dorsal view of spikelets. FNW taxon.
5376838 Spikelet(s) Ventral view of spikelets with pedicel and rachis segment. FNW taxon.
1459242 Rhizome / Stolon Rhizomes
1459244 Feature(s) Leaf collar region
1120384 Feature(s) Ligule. September. Photo from Forest Plants of the Southeast and Their Wildlife Uses by J.H. Miller and K.V. Miller, published by The University of Georgia Press in cooperation with the Southern Weed Science Society.
2149087 Feature(s) Ligule
2149093 Stem(s) Stem
2149095 Stem(s) Stem
1459237 Root(s) Roots
5437529 Stem(s)
5437530 Foliage
2149094 Foliage
5437534 Seed(s)
5437535 Seed(s)
5437536 Seed(s)
5437532 Seed(s)
5437533 Seed(s)
5437541 Stem(s)
5437542 Stem(s)
5437543 Foliage
5437546 Plant(s)
5437540 Plant(s)
5437544 Plant(s)
5437545 Plant(s)
5437539 Plant(s)
5437538 Plant(s)
5437537 Plant(s)
0581066 Plant(s)
1459245 Fruit(s)
1459234 Infestation
2149088 Plant(s)
1624081 Infestation Invasive plants complicate roadise begetation management programs, create safety hazards by obscuring visibility and increasing the intensity of roadsidefires, and provide seed sources for infestation of adjacent fields.
2149089 Plant(s)
1265102 Plant(s)
1459241 Plant(s)
1120382 Foliage June. Photo from Forest Plants of the Southeast and Their Wildlife Uses by J.H. Miller and K.V. Miller, published by The University of Georgia Press in cooperation with the Southern Weed Science Society.
2155066 Infestation
1391333 Field
1459238 Plant(s)
1459239 Feature(s) Ligule
1392225 Flower(s)
2149085 Root(s)
1624073 Plant(s) Was introduced from eastern Europe into Alabama in the 1830s as a pasture forage, has become a serious weed of row crops such as cotton and corn throughout the United States.
2308021 Infestation Large infestation in September
2149084 Root(s)
2149086 Feature(s) Plant base
2149083 Stem(s)
1459235 Plant(s)
1120383 Flower(s) July. Photo from Forest Plants of the Southeast and Their Wildlife Uses by J.H. Miller and K.V. Miller, published by The University of Georgia Press in cooperation with the Southern Weed Science Society.
1299122 Control Ropewick applicator
2100036 Plant(s)
1120381 Plant(s) June. Photo from Forest Plants of the Southeast and Their Wildlife Uses by J.H. Miller and K.V. Miller, published by The University of Georgia Press in cooperation with the Southern Weed Science Society.
1459243 Plant(s)
5428737 Flower(s)
5428736 Foliage
1459236 Seedling(s)
1459233 Fruit(s)
1459246 Feature(s)
5427568 Flower(s)
5427569 Plant(s)
5427570 Plant(s)
5427571 Flower(s)
5427572 Flower(s)
5427573 Flower(s)
5421991 Feature(s) Ligule In September
5422023 Infestation
5421992 Seed(s) In November
5421989 Infestation In July
5421990 Stem(s) In June
5408169 Flower(s)
5408167 Plant(s)
5408168 Flower(s)
5403108 Flower(s)
5389605 Plant(s)
5389606 Plant(s)
5389607 Plant(s)
5389604 Plant(s)
5392602 Infestation
5392603 Infestation Ratty plants
5391775 Flower(s)
5391776 Flower(s)
5391773 Plant(s)
5391774 Flower(s)
5386299 Plant(s) plant with some inflorescences containing a fungus.
5386300 Flower(s) inflorescence.
5386301 Flower(s) inflorescence with a fungus.
5386304 Stem(s) collar and sheath.
5386298 Plant(s) plant.
0581065 Flower(s)
5361009 Plant(s) Johngrass on a pole bean field as a weed.
5379566 Plant(s)
5379565 Infestation July
1556471 Fruit(s)
1556475 Seed(s)
1551074 Feature(s)
5309002 Fruit(s)
1551076 Root(s)
1551077 Root(s) rhizomes
1551073 Flower(s)
1551075 Foliage
1550057 Infestation
1550056 Seedling(s)
1550055 Seed(s)
1556473 Fruit(s)
1556472 Fruit(s)
1550054 Root(s) rhizomes
1550052 Flower(s)
1550053 Feature(s) leaf attachment
5362345 Plant(s) Johnsongrass (Sorghum halepense) -- a young plant.
5364428 Seed(s) Seeds of johnsongrass (Sorghum halepense).
5362350 Infestation A drybean field with johnson grass (Sorghum halepense) infestation.
5362349 Infestation A drybean field with johnson grass (Sorghum halepense) infestation.
5361787 Flower(s) Close-up view of the flower head of johnsongrass (Sorghum halepense) emerging from the boot. Plant is growing in a field of dry beans.
5361786 Plant(s) Johnsongrass (Sorghum halepense) growing as a weed in a field of dry beans.
5362596 Plant(s) Johnsongrass (Sorghum halepense) growing as a weed in a field of dry beans.
5358456 Seedling(s) Johnsongrass (Sorghum halepense) seedlings in an onion field.
5358454 Seedling(s) Johnsongrass (Sorghum halepense) seedlings in an onion field.
5358455 Seedling(s) Johnsongrass (Sorghum halepense) seedlings in an onion field.
1556501 Feature(s)
1556506 Root(s)
1556507 Feature(s) single white stripe on mid-rib of leaf
1556505 Seedling(s)
1556504 Plant(s)
1556500 Feature(s) leaf axil and single white stripe along mid-rib of leaf
1556499 Root(s)
1556496 Flower(s)
1556498 Root(s)
1556495 Plant(s)
1556492 Plant(s)
1556493 Plant(s)
1556490 Root(s)
1556491 Plant(s)
1556489 Flower(s)
1556487 Flower(s)
1556483 Feature(s) single white stripe along mid-rib of leaf
1556485 Root(s)
1556482 Feature(s) ligule
1556481 Feature(s) ligule
1556480 Foliage showing leaf axil and single white stripe on center of leaf
1556479 Plant(s)
1556477 Stem(s) at leaf axil
5160059 Flower(s) seed head
5160060 Flower(s) seed heads
5160061 Plant(s) habit
5160062 Plant(s) plant
5138045 Seed(s)
5138046 Seed(s)
2149090 Feature(s) Plant base
2149091 Feature(s) Plant base
2149096 Feature(s) Ligule

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