The lobeliaceae or lobelia family comprises about 375 species of herbs, shrubs, or sometimes trees. Most are native to tropical or warm temperate regions. Not all classifications recognize the family and place its members in the campanulaceae family instead.
The leaves are simple and alternate. The plant has a milky juice. The flowers are asymmetrical with 5 lobes and stamens. The corolla tube opens along the upper side with 2 lobes above and 3 below, and the stamens join together in the tube.
The Lobeliaceae (1200 species in 31 genera) are nearly cosmopolitan and are particularly diverse in temperate and high-altitude tropical areas.
Certain groups of Lobeliaceae also show accelerated rates of mitochondrial DNA sequence evolution, and we are sequencing the mitochondrial genomes from representatives of the fast and slow groups.
The chloroplast genome arrangement of Lobelia thuliniana (Lobeliaceae): expansion of the inverted repeat in an ancestor of the Campanulales.