Trilliaceae was a family of flowering plants first named in 1846; however, most taxonomists now consider the genera formerly assigned to it to belong to the family Liliaceae. The APG IV system, of 2016 (unchanged from the APG system, of 1998), does not recognize such a family either and assigns the plants involved to family Melanthiaceae, tribe Parideae.
Nevertheless, some taxonomists still recognize a separate family Trilliaceae. The most important genus in North America is Trillium, and the taxonomy of that genus has always been controversial.
A recent treatment (Farmer and Schilling 2002) stated that the family Trilliaceae, which exhibits an arcto-tertiary distribution, comprises six genera. Three of these exhibit a wide distribution:
Paris from Iceland to Japan,
Daiswa from eastern Asia, and
Trillium from North America and eastern Asia
Three are monotypic, endemic genera:
Trillidium govanianum, with a tepaloid inflorescence, from the Himalayan Mountains;
Kinugasa japonica, with petaloid sepals, from Japan; and
Pseudotrillium rivale, newly segregated, with spotted petals, from the Siskiyou Mountains of California and Oregon.
Within Melanthiaceae, these are consolidated into three genera;
Trilliaceae was a family of flowering plants first named in 1846; however, most taxonomists now consider the genera formerly assigned to it to belong...
lilies, while some more recent taxonomists have placed them in a family Trilliaceae. The most authoritative modern treatment, however, the APG III system...
early twentieth centuries it was sometimes placed in a smaller family, Trilliaceae. By 1981 Liliaceae had grown to about 280 genera and 4,000 species. As...
flowering plants in the genus Trillium of family Melanthiaceae (formerly Trilliaceae). The plant is also called the persistent wakerobin. Persistent trillium...
This is a comprehensive list of the vascular plants of the Karelian Isthmus, a land mass in Russia connected to Finland on one side and otherwise surrounded...
(2021), pp. 42. Case & Case (1997), pp. 107–108. Farmer, Susan B. "Named Trilliaceae taxa sorted by genus and species name". goldsword.com. Archived from...
and Uvularia), Alstroemeriaceae and Luzuriaga Melanthiaceae (including Trilliaceae) The first Angiosperm Phylogeny Group classification (APG I) in 1998...
(including Trillidium) Some authorities accept all six genera listed above. Trilliaceae Bartling, Friedrich Gottlieb (1830). Ordines Naturales Plantarum eorumque...
families, Dioscoreaceae, Stemonaceae (i.e. Hutchinson's Roxburghiaceae) and Trilliaceae. The latter two families had been treated as a separate order (Stemonales...
Freeman, John D.; Itou, Masakazu (1996). "Trillium channellii, sp. nov. (Trilliaceae), in Japan, and T. camschatcense Ker Gawler, Correct Name for the Asiatic...
Freeman, John D.; Itou, Masakazu (1996). "Trillium channellii, sp. nov. (Trilliaceae), in Japan, and T. camschatcense Ker Gawler, Correct Name for the Asiatic...
Hypoxidaceae, Melanthiaceae, Petermanniaceae, Philesiaceae, Ruscaceae, Trilliaceae) Family Iridaceae Family Agavaceae Family Xanthorrhoeaceae Family Velloziaceae...
population structure of fragmented populations of Trillium camschatcense (Trilliaceae)". Biological Conservation. 109 (2): 249–258. Bibcode:2003BCons.109....
families, including a broadly defined Liliaceae and the former family Trilliaceae. In the APG III system, it is placed in the family Melanthiaceae, where...
Susan B.; Schilling, Edward E. (October 2002). "Phylogenetic Analyses of Trilliaceae based on Morphological and Molecular Data" (PDF). Systematic Botany....
Family Alstroemeriaceae Family Colchicaceae Family Liliaceae Family Trilliaceae Family Iridaceae Order Burmanniales Family Burmanniaceae Family Corsiaceae...
Uvularia), Alstroemeriaceae and Luzuriaga; Melanthiaceae (including Trilliaceae). This suggested that the Campynemataceae form one of seven families...
Trichopodaceae Family Dioscoreaceae Family Taccaceae Family Stemonaceae Family Trilliaceae Family Smilacaceae Family Petermanniaceae Order Asparagales Family Philesiaceae...
Susan B.; Schilling, Edward E. (October 2002). "Phylogenetic Analyses of Trilliaceae based on Morphological and Molecular Data" (PDF). Systematic Botany....