| Citrus hindsii | |
|---|---|
 | |
| Fruit | |
Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Sapindales |
| Family: | Rutaceae |
| Genus: | Citrus |
| Species: | C. hindsii |
| Binomial name | |
| Citrus hindsii | |
Citrus hindsii, theHong Kong kumquat,[2][3] is aspecies ofkumquat;[4] a type of citrus fruit in thegenusCitrus, familyRutaceae. This specific name is first published in World Checklist of Seed Plants 3(1): 15 (1999).[5][6] Recent phylogenetic analysis suggested thatC. hindsii is a single 'true' species.[7][8]
Citrus hindsii produces small, round, pea-sized, bitter and acidic fruit with very little pulp and large seeds. The fruits are bright orange in color when ripe. In warmer regions, it is primarily grown as anornamental plant as well as houseplant andbonsai. Though it is also found in southern China growing in the wild.[9][10] Not only is it the most primitive of the kumquats, but with kumquats being the most primitive citrus, Swingle described it as the closest to the ancestral species from which all citrus evolved.[8] While the wild Hong Kong kumquat istetraploid, there is a commercialdiploid variety, theGolden Bean kumquat, with slightly larger fruit.[10]
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