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World of CitrusWorld of CitrusKaffir Lime
University of California, Riverside — Citrus Variety Collection
https://citrusvariety.ucr.edu/crc2454 (opens in a new tab)
Accessed
TheKiwiGrower · YouTube
https://www.youtube.com/watch?v=WEi-P5CuShc (opens in a new tab)
Summary from transcript: The video title names Makrut; at 7:11–7:22 the presenter describes a double-lobed leaf and says the fruit is not for fresh eating. At 7:27–7:50 he describes rind/juice use in curries and a strong scent released by squeezing the skin. At 8:10–8:58 he tastes a yellow fruit and reports a delayed tingly/numbing sensation. Auto-captions render the name as “macro”/“makuta”; the catalog Makrut Lime alias match is used. No tree location, sample provenance, or measurements are stated. English auto-generated captions cover 0:03–9:18.
Accessed
Terra Mater Gardens · YouTube · 2022-11-14
https://www.youtube.com/watch?v=MdurjjcbMK8 (opens in a new tab)
Summary from transcript: The narrator gives general horticultural information about Citrus hystrix, including leaf traits, cold sensitivity, and culinary uses. The video does not identify a particular accession or document a measured temperature threshold.
Accessed
Real Life Fruitopia · YouTube · 2020-07-09
https://www.youtube.com/watch?v=sCsTcXPtS4Q (opens in a new tab)
Summary from transcript: The presenter describes pruning and dimensions of a roughly ten-year-old in-ground tree in Melbourne and shows fruit/zest and leaf uses. The video does not report a measured temperature threshold or identify an accession.
Accessed
Weird Explorer · YouTube · 2023-12-31
https://www.youtube.com/watch?v=tQJRw0FsKDk (opens in a new tab)
Summary from transcript: At a Bangkok market, the presenter compares green fruit and a yellow fruit he interprets as ripe and describes differences in their subjective taste. The video does not identify an accession or provide a fruit-sampling date.
Accessed
What Plant is that, Paul? · YouTube · 2020-01-23
https://www.youtube.com/watch?v=RrAjCc0uwqc (opens in a new tab)
Summary from transcript: Paul examines and tastes rind from an unnamed Kaffir Lime tree at Sal's house, describing its citrus fragrance and oily texture and discussing the leaves. The video does not identify the tree’s accession or establish a sampling date.
Accessed
Rahmat Budiarto et al. · Journal of Agriculture and Food Research · December 2024
https://doi.org/10.1016/j.jafr.2024.101384 (opens in a new tab)
Review abstract, sections 1–2, and Table 1 survey culinary use and essential-oil profiles across plant parts and source locations; the review notes phytochemical composition varies with plant part and extraction method. This is secondary, cross-study context, not a measurement of the catalog tree or a clinical claim.
Accessed
US Citrus · 2020-02-18
Summary from article: It identifies Citrus hystrix, describes a small thorny bush/tree and small wrinkly lime-like fruits, and discusses leaves, oil and fruit in Southeast Asian cuisine. This generic commercial description provides no specimen measurements or accession.
Accessed
Incubator · UBC Botanical Garden Forums · 2019-02-13
Summary from forum: In post #1 (post-368820), Incubator reports indoor-overwintering container plants in Belgium: a potted tree began losing leaves and browning after being moved to a living room (the shed was 15–19°C); a second plant believed to be dwarf, kept in the shed, retained new leaves. No outside-freezing exposure or measured hardiness threshold is reported. Later replies are general advice, not trial data.
Accessed
Tropical Fruit Forum · 2019-02-01
https://tropicalfruitforum.com/index.php?topic=30965.0 (opens in a new tab)
Summary from forum: In a February 18, 2019 post (#1) lebmung reports selecting one seedling from 50 and says it “takes −3°C,” while separately reporting greenhouse temperatures of −1°C to 5°C. The minimum, duration, plant stage and relation to the greenhouse range are unclear; grafted plants reportedly died in the “same conditions,” without rootstocks, counts or a controlled comparison. Treat this as a grower report, not a verified hardiness limit.
Accessed
Gardenia.net
https://www.gardenia.net/plant/citrus-hystrix (opens in a new tab)
Summary from page: The generic description calls it a small thorny tree with double leaves and small warty fruit; ripe fruit is described as yellow, with sparse acidic/bitter juice and aromatic rind. The page offers general hardiness guidance but identifies no exposure, specimen or method, so it does not establish a measured cold threshold.
Accessed