The open plant encyclopedia
Snap a photo or search by any name to see how to care for it, where it comes from, whether it's safe, and a 3D model you can turn.
The plants people record most in your country, and ones that grow there wild.
Filter by what you want to do, shape, origin, country, care and safety.
Citrus halimii
Mountain citron is a rare wild citrus tree from Southeast Asia with small, sour, edible fruit, more closely related to kumquats than to the true citron. It is poorly studied and seldom grown, so most care advice comes from general citrus and tropical tree practice.
Citrus halimii, or mountain citron, is a citrus with sour fruit. Historically placed within the polyphyletic grouping of papedas, it has since been determined to be a wild species most closely related to the kumquats, and is not related to the true citron. It was first discovered and catalogued in 1973.
Citrus halimii is quite rare and poorly studied. After its initial 1973 discovery and description, it has been observed in only a handful of locations scattered across Southeast Asia: Thailand and Malaysia (the locations of the first discoveries), along with isolated stands in Indonesia.
Calamansi · Citrofortunella · Nasnaran Mandarin · Ada Jamir · Key lime · Bitter orange · Bergamot orange · Ichang Lemon or Ichang papeda · Celebes papeda · Clementine · Heen naran · Daidai
Text excerpted from the Wikipedia article Citrus halimii by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
