Triaenophora

Triaenophora is a genus of flowering plants native to Temperate Asia.^[2] Molecular phylogenetic studies place it in the tribe Rehmannieae of the family Orobanchaceae, although as of February 2025^[update], Plants of the World Online continued to place it in Plantaginaceae.

Triaenophora
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Lamiales
Family:	Orobanchaceae
Tribe:	Rehmannieae
Genus:	Triaenophora Soler.[1]

Taxonomy

The genus Triaenophora was first erected by Hans Solereder in 1909,^[1] based on a section of the genus Rehmannia which Joseph Dalton Hooker had called "Trianophora" in 1891.^[3] It was initially placed in the family Scrophulariaceae.^[1] When that family was shown by molecular phylogenetic studies not to be monophyletic, and so was split up, Triaenophora was placed in Plantaginaceae,^[4] a placement still used by Plants of the World Online as of February 2025^[update].^[2] Subsequent studies have shown that Triaenophora forms a clade with Rehmannia, basal to parasitic genera in the family Orobanchaceae.^[4][5][6]

Orobanchaceae Rehmannieae Triaenophora Rehmannia Lindenbergia (Lindenbergieae)  remaining Orobanchaceae

non-parasitic

The placement in the tribe Rehmannieae of the family Orobanchaceae was accepted by the Angiosperm Phylogeny Website, as of February 2025^[update].^[7]

Species

As of March 2022^[update], Plants of the World Online accepted four species:^[2]

• Triaenophora bucharica B.Fedtsch.
• Triaenophora integra (H.L.Li) Ivanina
• Triaenophora rupestris (Hemsl.) Soler.
• Triaenophora shennongjiaensis Xi.D.Li, Y.Y.Zan & J.Q.Li