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World of CitrusWorld of CitrusTrifeola
University of California, Riverside — Citrus Variety Collection
https://citrusvariety.ucr.edu/crc3954 (opens in a new tab)
Accessed
The Mulberries · YouTube · 2026-03-02
https://www.youtube.com/watch?v=qkMk7xPCGeU (opens in a new tab)
Summary from transcript: Trifeola survived but was more bleached and injured; the speaker calls it marginal locally and raises a late-ripening concern (20:28–22:08).
Accessed
Citrus ID, Edition 2
https://idtools.org/citrus_id/index.cfm?packageID=1179&entityID=8873 (opens in a new tab)
Citrus ID Edition 2 fact sheet, October 2011; no individual entry author is shown. Lines 47–60 identify Trifeola and describe a compact or dense, non-weeping crown, nonpersistent or absent thorns, and fruit with varied yellow to red-orange rind colors, slightly rough texture, leathery firmness, orange flesh, and sour taste. Fruit is described as “as broad as long or longer than broad.” The fact sheet lists several taxonomic formulae and cites Cottin (2002) and Swingle and Reece (1967); retain those as source-attributed alternatives, not a replacement for the catalog pedigree. No observation date, sample count, place, or tasting method is given.
Accessed
samodelkin · Citrus Growers ProBoards · 2019-07-03
https://citrusgrowersv2.proboards.com/thread/38/trifeola (opens in a new tab)
User-supplied post excerpt attributed to samodelkin, dated July 3, 2019; the page itself was not independently retrieved. It describes one shaded-crown fruit weighing about 90 g, juicy, seedless when cut, and with little sweetness and acidity; it separately describes abundant peel oil and a flesh flavor less oil-dominated than expected. The post quotes Adavo's 5°F (−15°C) frost-resistance rating; this is a nursery claim, not a tested survival temperature. One fruit does not establish cultivar-wide seedlessness or taste.
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Samodelkin · Tropical Fruit Forum · 2018-03-12
https://tropicalfruitforum.com/index.php?topic=26278.50 (opens in a new tab)
Post #52 (March 12, 2018, 5:36 PM; rendered in English on the forum) says Poncirus-hybrid fruit taste depends on growing conditions and describes Trifeola as “Poncirus+Mineola” with fruit “almost edible.” The wording is a forum participant’s description, not a controlled tasting; the displayed parentage phrase may reflect translation or informal nomenclature and does not revise the catalog pedigree.
Accessed
David G. Hall; Justin George; Stephen L. Lapointe · Crop Protection / Elsevier · 2015
https://doi.org/10.1016/j.cropro.2015.03.010 (opens in a new tab)
Full text reviewed through the USDA-ARS PDF mirror. Table 4 (PDF p. 4; journal p. 115) includes Trifeola, CRC 3954, in a March 2014 Fort Pierce free-choice assay of seedling test populations: five plants per genotype, four flush shoots checked weekly for three weeks. The Trifeola row reports mean 0–3 ratings of 1.22 eggs and 2.20 nymphs across shoots, and 3.00 eggs and 2.92 nymphs among infested shoots. These are pest-count ratings, not fruit or orchard traits. The table gives its hybrid parentage as (C. paradisi × C. tangerina) × P. trifoliata; keep this source-specific formulation distinct from the catalog's named parentage. Authors report no reduced oviposition for tested Citroncitrus accessions in the free-choice trials; this does not test HLB resistance or prove cultivar-wide susceptibility.
Accessed
ryuma · Forum Agrumes · 2016-10-25
https://www.forum-agrumes.com/viewtopic.php?f=13&t=3075 (opens in a new tab)
Opening post by ryuma (Ligny, Belgium), October 25, 2016, quotes Sebtan’s spreadsheet listing Trifeola as frost-rated to −15 °C and parented as Minneola mandarin × Poncirus. The poster asks whether ripening may be a problem and does not report growing Trifeola. Another reply cautions that the listed temperatures are not realistic. This is a secondhand nursery/listing value, not observed survival or a reliable minimum.
Accessed
The Mulberries · YouTube · 2024-11-08
https://www.youtube.com/watch?v=aqci8874OJM (opens in a new tab)
Summary from transcript: At 0:05–0:15 the speaker identifies a first-year Minneola tangelo × trifoliate orange hybrid plant and describes it as small. At 0:19–0:35 they say several plants are growing, one flowered and set a couple of fruit, and those fruit are not expected to ripen. The clip reports early flowering and fruit set only; no ripe fruit, taste, measurement, or hardiness result is reported.
Accessed
The Mulberries · YouTube · 2026-05-02
https://www.youtube.com/watch?v=JC57MkGPtg0 (opens in a new tab)
Summary from transcript: The video title identifies Trifeola and states the Minneola tangelo × Poncirus trifoliata hybrid; at 0:12 the auto-generated captions render the plant name as “trifoliata,” so identification rests on the title and stated cross, not that caption word alone. At 0:02–0:49 the speaker says the fruit has not been tried and describes two plants, one shorter and one previously greenhouse-grown, with fruitlets after flowering in two consecutive years. At 5:51 the speaker clarifies neither plant is currently in the greenhouse. Later flavor and ripening comments are hearsay, questions, or plans; cold-hardiness remarks are a personal provisional estimate rather than a measured threshold. No ripe fruit taste, score, or instrument reading is reported.
Accessed
Citrusgrowersv2 ProBoards
Reviewed from the user-supplied HTML capture; the live thread was not independently retrieved. Posts #6759 (Apr. 4, 2022) and #6795 (Apr. 12, 2022) by till describe Trifeola used as a mother plant pollinated with Batumi Citrumelo, germinated monoembryonic seeds and visibly different seedlings, with no confirmed hybrid identities or success rate. The same grower reports fruit dropping somewhat unripe in autumn under glass in zone 7b near Aachen; he describes it as juicy and “way too bitter,” and reports abundant pollen. This is one grower’s site- and maturity-limited account.
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