Houstonia longifolia
Encyclopedia
Houstonia longifolia is a perennial plant in the family Rubiaceae
. It can be found throughout most of the Eastern United States and Canada.
Rubiaceae
The Rubiaceae is a family of flowering plants, variously called the coffee family, madder family, or bedstraw family. The group contains many commonly known plants, including the economically important coffee , quinine , and gambier , and the horticulturally valuable madder , west indian jasmine ,...
. It can be found throughout most of the Eastern United States and Canada.