|FYUSE 3d Image||
Common Name: Johnsongrass
Species Name: Sorghum halepense
Plant Type: Grasses & Grass-like
Family Name: Poaceae
|Origin||Introduced, Mediterranean Region|
|Distribution in the U.S.||NE, KS, OK, TX, IA, MO, CO, NM|
|Distribution in Oklahoma||Throughout the state|
- Field Identification Characteristics
- Inflorescence: Panicle open (15-50 cm long), often purplish, branches whorled
- Spikelet: Florets 2; in pairs, sessile spikelet fertile (4-5,5 mm long); pedicellate spikelet staminate or neuter (5-7 mm long); lemmas of fertile spikelets thin and hylaline, first fertile, nerves 2; second sterile, nerves 3-7
- Awns: Fertile lemma awnless or awned (7-20 mm long), awn geniculate and twisted
- Glumes: Sessile spikelet glumes subequal (3.5-5.5 mm long), indurate, shiny, nerves obscure pedicellate spikelet glumes subequal (3.6-5.6 mm long) nerves 5-9
- Leaf and Stem Characteristics
- Sheath: Shaggy, densely hairy with long hairs.
- Leaf Blade Shape: Flat (7-20 cm long, 1-7 mm wide), densely hairy or velvety, midvein prominent.
- Ligule: Membranous (less than 2 mm long), rounded.
- Floral CharacteristicsN/A
|Habitat||Widespread on disturbed sites, waste areas, cropland, and rangeland in low condition|