In some classifications included in genus Gentiana

• Low-growing alpine plant cultivated for its dark glossy green leaves in basal rosettes and showy solitary bell-shaped blue flowers
• Genus of herbs with flowers that resemble gentian

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Gentianella \Gen`tian*el"la\, n. [See Gentian .] A kind of blue color. --Johnson.

Wiktionary Word definitions in Wiktionary
n. (context botany English) Any of the genus ''Gentianella'' of dwarf gentians.

Wikipedia Word definitions in Wikipedia
Gentianella is a plant genus in the gentian family (Gentianaceae). Plants of this genus are known commonly as dwarf gentians . There are about 256 species in this genus. They are perennial herbs that occur in alpine and arctic habitat types. They are distributed ...