Schenkia

Schenkia can be distinguished from the closely related Centaurium s.s. and other segregate genera (Zeltnera, Gyrandra) based on phylogenetic and morphological characters established in taxonomic revision. The genus was separated from Centaurium to reflect monophyletic relationships within Chironiinae.

Eurasia and North Africa (S. spicata); Australia and Pacific region (S. australis, S. clementii, S. japonica); Hawaii (S. sebaeoides, a rare and endangered endemic).

Schenkia sebaeoides is noted as a rare and endangered Hawaiian endemic, indicating conservation concern for this species.

• Centaurium s.s.Previously included in Centaurium; now separated based on phylogenetic and morphological evidence to form monophyletic groups.
• ZeltneraAnother segregate genus from Centaurium; Zeltnera comprises 25 species mainly confined to California, Mexico, and Texas, distinct from Schenkia's Old World and Pacific distribution.
• GyrandraSmall segregate genus of five species restricted to Mexico and Central America, separated from Centaurium in the same taxonomic revision.

Schenkia is sometimes still included in the genus Centaurium, though phylogenetic evidence supports its recognition as a distinct genus.

• Gentianaceae
• Chironiinae
• reinstated genus
• polyphyletic segregate
• Hawaiian endemic
• conservation concern

• BugGuide
• Wikipedia
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life
• A new classification of the polyphyletic genusCentauriumHill (Chironiinae, Gentianaceae): description of the New World endemicZeltnera, and reinstatement ofGyrandraGriseb. andSchenkiaGriseb.