Smith Red Valencia is a pigmented
bud sport
In botany, a sport or bud sport, traditionally called ''lusus'', is a part of a plant that shows morphological differences from the rest of the plant. Sports may differ by foliage shape or color, flowers, fruit, or branch structure. The cause is ...
of a conventional
Valencia orange
The Valencia orange is a sweet orange cultivar named after the famed oranges in València, Spain. It was first hybridized by pioneer American agronomist and land developer William Wolfskill in the mid-19th century on his farm in Santa Ana, s ...
tree.
An initial scientific report stated:
Although red inside, the Smith Red is a Valencia and not a blood orange. Researchers were made aware of it in 1988 when a woman named Merleen Smith in
Ventura County, California contacted a local farm advisor on the suspicion that her neighbor was poisoning her tree; the cultivar now bears her name.
References
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Orange cultivars