Sorghum halepense - Johnson Grass - Vegetation Management Guideline
- Species description, photo, and recommendations on control methods, from Illinois Nature Preserves Commission.
- http://www.inhs.uiuc.edu/edu/VMG/johngrass.html

Sorghum halepense (Johnson Grass)
- An exotic species resource page from The Nature Conservancy. Includes description, images, natural history, and control strategy for this cosmopolitan weed.
- http://tncweeds.ucdavis.edu/esadocs/sorghale.html

Sorghum halepense
- English common names: Johnson grass, Aleppo grass, Aleppo milletgrass. Invasive species profile, with several photos, from Pacific Island Ecosystems at Risk.
- http://www.hear.org/pier/sohal.htm

Sorghum: Origin, History, Technology, Production
- Description of a book offered for sale.
- http://www.chipsbooks.com/sorghum.htm

Sorghum vulgare
- A short description and an account of its medicinal uses.
- http://www.botanical.com/botanical/mgmh/b/brocor74.html