Editing Trillium (section)

===Subgenus ''Trillium''===
''Trillium'' subgen.&nbsp;''Trillium'', the '''Erectum group''', is a group of pedicellate-flowered trilliums that includes ''[[Trillium erectum]]''. The subgenus was [[Circumscription (taxonomy)|circumscribed]] as a [[clade]] of fourteen (14) species in 2022.{{sfnp|Lampley|Gereau|Floden|Schilling|2022|pp=280-281}} Species in this subgenus have [[Pedicel (botany)|pedicellate]] flowers (on a stalk) with three distinct [[Stigma (botany)|stigma]]s (no [[Stigma (botany)#Style|style]]) and solid green leaves (not mottled). They are distributed across North America and Asia. Hybrids are common within this subgenus (the only group of pedicellate-flowered trilliums with natural hybrids).

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* ''[[Trillium apetalon]]'' {{small|Makino}}{{r|POWO:542515-1}}<ref>{{cite journal |last1=Makino |first1=T. |title=Observations on the Flora of Japan |journal=Botanical Magazine (Tokyo)|date=1910 |volume=24 |issue=282 |page=137 |url=https://biodiversitylibrary.org/page/41540964 |access-date=3 August 2019 |doi=10.15281/jplantres1887.24.282_137 |doi-access=free }}</ref><ref>{{cite web |title=''Trillium apetalon'' |url=https://www.keepingitgreennursery.com/products/trillium-smallii-kojima-island-trillium |website=Keeping It Green Nursery |access-date=3 August 2019}}</ref> – Japan, Kuril Islands, E Russia (Sakhalin)
* ''[[Trillium camschatcense]]'' {{small|Ker Gawl.}}{{r|POWO:328445-2}}<ref name="FOC 200027980">{{eFloras |2 |200027980 |Trillium camschatcense |volume=24}}</ref> – NE China (Jilin), Japan, Korea, Kuril Islands, E Russia (Primorsky Krai, Khabarovsk Krai, Kamchatka Peninsula, Sakhalin)
* ''[[Trillium cernuum]]'' {{small|L.}} – Manitoba, New Brunswick, Newfoundland, Nova Scotia, Ontario, Prince Edward Island, Quebec, Saskatchewan; Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, New Hampshire, New Jersey, New York, North Dakota, Ohio, Pennsylvania, Rhode Island, South Dakota, Vermont, Virginia, West Virginia, Wisconsin; Saint Pierre and Miquelon
* ''[[Trillium channellii]]'' {{small|Fukuda, J.D.Freeman & Itou}}{{r|POWO:989638-1}}<ref>{{cite journal |last1=Fukuda |first1=Ichiro |last2=Freeman |first2=John D. |last3=Itou |first3=Masakazu |title=''Trillium channellii'', sp. nov. (Trilliaceae), in Japan, and ''T. camschatcense'' Ker Gawler, Correct Name for the Asiatic diploid ''Trillium'' |journal=Novon |date=1996 |volume=6 |issue=2 |pages=164–171 |url=https://biodiversitylibrary.org/page/661889|doi=10.2307/3391914 |jstor=3391914 }}</ref> – Japan (E Hokkaido)
* ''[[Trillium erectum]]'' {{small|L.}} – New Brunswick, Nova Scotia, Ontario, Quebec; Connecticut, Delaware, Georgia, Illinois, Indiana, Kentucky, Maine, Maryland, Massachusetts, Michigan, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, West Virginia
* ''[[Trillium flexipes]]'' {{small|Raf.}} – Ontario; Alabama, Arkansas,<ref name="BONAP county"/> Delaware, Illinois, Indiana, Iowa, Kentucky, Maryland,<ref name="BONAP county"/> Michigan, Minnesota, Missouri, New York, Ohio, Pennsylvania, South Dakota, Tennessee, Virginia, West Virginia, Wisconsin
* [[Trillium × hagae|''Trillium'' × ''hagae'']] {{small|Miyabe & Tatew.}}{{r|POWO:542554-1}} (''Trillium camschatcense'' × ''Trillium tschonoskii'') – Japan, E Russia (S Sakhalin)
* ''[[Trillium hibbersonii]]'' {{small|(T.M.C.Taylor & Szczaw.) D.O'Neill & S.B.Farmer}} – British Columbia
* [[Trillium × komarovii|''Trillium'' × ''komarovii'']] {{small|H.Nakai & Koji Ito}}{{r|POWO:961664-1}} (''Trillium camschatcense'' × unknown) – Japan, E Russia (Primorsky Krai)
* [[Trillium × miyabeanum|''Trillium'' × ''miyabeanum'']] {{small|Tatew. ex J.Samej.}}{{r|POWO:542571-1}} (''Trillium apetalon'' × ''Trillium tschonoskii'') – Japan
* ''[[Trillium rugelii]]'' {{small|Rendle}} – Alabama, Georgia, North Carolina, South Carolina, Tennessee
* ''[[Trillium simile]]'' {{small|Gleason}} – Georgia, North Carolina, Tennessee
* ''[[Trillium smallii]]'' {{small|Maxim.}}{{r|POWO:542604-1}} – Japan, E Russia (S Sakhalin)
* ''[[Trillium sulcatum]]'' {{small|T.S.Patrick}} – Alabama, Georgia, Kentucky, North Carolina, Tennessee, Virginia, West Virginia
* ''[[Trillium taiwanense]]'' {{small|S.S.Ying}}{{r|POWO:937303-1}}<ref name="FOC 240001618">{{eFloras |2 |240001618 |Trillium taiwanense |volume=24}}</ref> – E Taiwan
* ''[[Trillium tschonoskii]]'' {{small|Maxim.}}{{r|POWO:542611-1}}<ref name="FOC 200027981">{{eFloras |2 |200027981 |Trillium tschonoskii |volume=24}}</ref> – Bhutan, China (Anhui, Fujian, Gansu, Hubei, Shaanxi, Sichuan, Tibet Autonomous Region, Yunnan, Zhejiang), NE India (Sikkim), Japan, Korea, Kuril Islands, Myanmar, Russia (Sakhalin), Taiwan
* ''[[Trillium vaseyi]]'' {{small|Harb.}} – Alabama, Georgia, North Carolina, South Carolina, Tennessee
* [[Trillium × yezoense|''Trillium'' × ''yezoense'']] {{small|Tatew. ex J.Samej.}}{{r|POWO:542620-1}} (''Trillium apetalon'' × ''Trillium camschatcense'') – Japan
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