Cenchrus pauciflorus
- Photograph, systematic position, morphology, biology, distribution, ecology and economic significance of the Coastal Sandbur.
- http://www.agroatlas.spb.ru/weeds/Cenchrus_pauciflorus_en.htm

Cenchrus ciliaris
- Description, images, and invasiveness in the Pacific islands.
- http://www.hear.org/pier/cecil.htm

Cenchrus echinatus
- Close up image of flowers.
- http://www.botany.hawaii.edu/faculty/carr/images/cen_ech_cu.jpg