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The Rangpur lime, scientifically known as Citrus limonia, is a citrus hybrid originating in South Asia, specifically named after the Rangpur region of Bangladesh. Despite its common name, it is actually a cross between a mandarin and a citron, featuring a bright orange to reddish rind that peels eas...
The Swingle Citrumelo is a citrus hybrid produced by crossing a Duncan grapefruit with a trifoliate orange, created by USDA botanist Walter T. Swingle. It is widely utilized as a cold-hardy, disease-tolerant rootstock in commercial citrus growing, particularly in Florida. Due to its resistance to th...
The Carrizo citrange is a citrus hybrid created by crossing a sweet orange with a trifoliate orange. Developed in California during the mid-20th century, it is primarily utilized as a rootstock rather than for its fruit. It is valued by agricultural growers for its resistance to certain soil-borne d...
The trifoliate orange, scientifically classified as Poncirus trifoliata, is a deciduous, spiny shrub closely related to the genus Citrus. Native to northern China and Korea, it is distinguished as the most cold-hardy species within its botanical group, capable of surviving severe freezing temperatur...
A sweet orange × trifoliate orange rootstock hybrid released in 1958 by the University of California, widely planted for its cold tolerance and Phytophthora resistance.
A trifoliate orange hybrid selected as a cold-hardy citrus rootstock, bred for improved resistance to Phytophthora root rot and soil-borne nematode pests.
A mandarin species (Citrus reshni) used primarily as a rootstock in world citrus production, valued for its tolerance of tristeza virus, soil salinity, and a broad range of soil conditions.
A sour-fruited Indian citrus variety related to rough lemon, widely used as a rootstock in the Punjab and Himalayan foothill regions of India and Pakistan.
Ancient citrus hybrid (Citrus volkameriana) likely originating in southern Italy, valued not for fresh consumption but as a vigorous, disease-resistant rootstock for lemon orchards.
Ancient citrus hybrid (Citrus jambhiri) of uncertain geographic origin, rarely consumed fresh due to its coarse bumpy peel, but widely used as a hardy rootstock for citrus trees.
Citrus macrophylla, native to the Philippines, is cultivated worldwide primarily as rootstock for commercial citrus groves, valued for its vigorous growth and disease tolerance.
