Keen sour orange

Citrus aurantium L.

CRC 2624

PI 539163

Photos by David Karp, CVC,  2/11/2008. Photo rights.

Source: Received as seed from a source in Bonita, CA, 1936.

Parentage/origins: Parents unknown. Original source was root sprouts from under a Lisbon lemon tree planted in 1887.

Rootstocks of accession: Carrizo citrange, C-35 citrange

Season of ripeness at Riverside: January to March

Notes and observations:

2/24/1988, EMN: This fruit is a typical sour orange.

2/11/2008, OJB, TS & DK: Looks like Seville; juicy; moderate seeds; flavor decent, but not great.

Availability: Not commercially available in California.

USDA Germplasm Resources Information Network page for Keen sour orange