PlantaeDB Logo
Login Sign-up

Genus Flueggea in Family Phyllanthaceae

In botanical taxonomy, a genus (plural genera) is a rank used to group closely related species within a family. In the hierarchy, genus sits below family and above species.

Genera are defined by shared morphological, anatomical, and genetic characteristics (for example, features of flowers, fruits, seeds, or leaves) that indicate a close evolutionary relationship among the species they contain.

Each genus can include one or more species. Examples include Rosa (roses) and Solanum (nightshades, including tomato and eggplant).

Do you wish to read more about plant taxonomy? Click here!

Genus Description

Suggest a correction!

Flueggea (Willd.) is a small genus of dioecious trees and shrubs placed in the Phyllanthaceae, well supported by molecular phylogenetic work within tribe Phyllantheae (Kathriarachchi et al., 2005; Wurdack & Davis, 2009). POWO currently accepts about twelve species (POWO, 2024; World Flora Online, 2024), with Flueggea virosa (Roxb. ex Willd.) G.L.Webster widely treated as the type; the genus ranges from the Paleotropics of Africa through South and Southeast Asia to the Pacific. Plants are unarmed with flexuous, sometimes slightly angular branchlets; leaves are alternate, distichous, shortly petiolate and lack the callose domatia of some Phyllanthus. Stipules are small, caducous and usually persistent at nodes. Inflorescences are axillary and typically glomerulate, unisexual and often sparsely hairy; flowers are small with five sepals, five nectariferous petals in some species, and the pedicels articulate at the base. Fruits are three-lobed, thin-walled drupes, usually pinkish when mature; seeds are arillate or at least partially covered by an aril-like outgrowth (Webster, 1984; Gandhi, 2005).

Centers of species richness include South and Southeast Asia; several species are narrowly endemic to islands or coastal settings. Typical habitats range from inland dry forests, woodland margins and scrub to coastal strand and beach systems; individuals occur from near sea level to mid-altitudes. Dispersal appears to be bird- and mammal-assisted via the fleshy drupes, but formal pollination records are sparse in the literature (Webster, 1984; APG IV, 2016).

Taxonomically, the genus has been treated alternatively as a section of Phyllanthus (e.g., section Flueggea), but recent molecular studies consistently resolve Flueggea outside Phyllanthus s.str., supporting its generic status (Kathriarachchi et al., 2005; Wurdack & Davis, 2009). Within Flueggea, a few lineages are recognized (e.g., the F. virosa complex and the East Asian F. suffruticosa group), and synonymizations with taxa such as Glochidion are not supported. Chromosome counts are best known in the F. virosa complex, where x=13 is frequently reported (Webster, 1984; Gandhi, 2005). The genus includes no major crops, but several species are used locally for timber, fuelwood, hedging or ornaments; F. virosa is widely planted as a street tree or hedging shrub (POWO, 2024; World Flora Online, 2024).

Conservation assessments remain uneven; many species are common and weedy in disturbed sites, yet several island endemics require targeted surveys. Accurate species-level taxonomy and expanded ex situ safeguarding are needed to resolve remaining uncertainty.

Pick a Species to see its components: