Coffea arabica
- Characteristics of the coffee plant as an invasive species in Pacific island ecosystems.
- http://www.hear.org/pier/species/coffea_arabica.htm

The Coffee Tree
- Information on this tropical shrub, its varieties, flowers, leaves and fruit.
- http://www.justaboutcoffee.com/index.php?file=coffeetree

Coffee: Coffea arabica
- Characteristics of this evergreen shrub, its distribution and uses.
- http://www.beesfordevelopment.org/info/info/flora/coffee-coffea-arabica.shtml

Coffee
- Information on the ecosystems suiting this crop, its botany and cultivation, provided by Rambouts.
- http://www.rombouts.com/uk/coffee/ecosysteme.html

Coffee Plants: Arabica and Robusta
- An in depth look into the subject of the Arabica and Robusta coffee plants.
- http://www.thestarwoking.co.uk/articles/article.php?id=19

Coffea
- Brief discussion of the genus (common name "coffee") and its cultivation.
- http://www.botany.com/coffea.html