The Hass avocado is a cultivar of avocado (Persea americana) with dark green colored, bumpy skin. It was first grown and sold by Southern California mail carrier and amateur horticulturist Rudolph Hass, who also gave it his name.
The Hass avocado is a big fruit weighing 200 to 300 grams.
- Stradley, Linda (2004). "All About Avocados: History of the Hass Avocado". What'sCookingAmerica.net. Newberg, OR: self-published. Retrieved 2008-05-13. Stradley is a well-known culinary author.
- "The Hass Mother Tree: 1926–2002". Avocado.org. Irvine, CA: California Avocado Commission. 2008. pp. "About Avocados: History" section. Archived from the original on 2008-09-13. Retrieved 2008-09-27.
- "Avocado History". IndexFresh.com. Bloomington, CA: Index Fresh Avocado. 2007. Archived from the original on 2007-12-25. Retrieved 2007-12-29.