PlantaeDB Logo
Login Sign-up

Genus Epicharis in Family Meliaceae

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!

Epicharis is a genus in Rutaceae (rue/citrus family) with a Neotropical distribution spanning lowland tropical forests and secondary formations from the Guianas to the Amazon basin and northern Brazil, with outlying records toward Panama (POWO, 2024; WFO, 2024). Species richness is moderate to high and remains unsettled because Epicharis is treated by some authors as a separate genus and by others as a synonym of Zanthoxylum; accordingly, numbers vary among recent sources (Flora do Brasil 2020). It is a small to medium-sized tree genus typically characterized by opposite or subopposite compound leaves bearing inconspicuous or punctate glands, and young growth often covered with a lepidote indumentum; bark is frequently red-brown and resinous in fresh cuts. Infloresences are axillary thyrses or few-flowered fascicles; flowers are actinomorphic with five (often six) sepals and petals, a relatively short hypanthium, free stamens with anthers bearing apical glands, and a superior ovary with axile placentation. Fruits are drupes with a single stony pyrene, a diagnostic feature linking Epicharis to the rutaceous “Zanthoxylum group” (Flora Neotropica; Kubitzki, 2011). The base chromosome number is x = 32, reported in regional floras (Flora of Panama;Flora of Brazil, 2020).

Centers of diversity include the Guianan Highlands, western Amazonian Brazil, and the upper Amazon of Peru; several taxa are region-specific, and some appear narrowly endemic to riverine or terra firme forests, commonly below 800–1,200 m but locally higher in foothills. Reproductive biology remains inadequately documented, although visitation by insects and wind-assisted pollen movement is inferred from floral structure and related Zanthoxylum species; seed dispersal is expected to involve birds and mammals attracted to the fleshy drupes, but field data remain sparse.

Taxonomically, Epicharis is partitioned into informal species groups recognized by multivariate analyses (Flora Neotropica), yet its generic boundary is contested. The Global Biodiversity Information Facility (GBIF, 2024) and the World Flora Online backbone (WFO, 2024) currently treat Epicharis as accepted, whereas the Plants of the World Online checklist (POWO, 2024) places it in the synonymy of Zanthoxylum (e.g., Z. epicharis [Kuntze] P. G. Waterman). Alternative circumscriptions—maintaining Epicharis as a distinct genus or subsuming it into Zanthoxylum—reflect differing phylogenetic signal and historical treatments; future work integrating molecular, morphological, and biogeographic data will likely refine delimitation (Kubitzki, 2011; Waterman, 1975; Flora do Brasil 2020).

The genus has limited direct human relevance. Some species yield heavy, dense timber useful locally, and occasional plantings occur in tropical arboreta, but Epicharis is not widely cultivated for ornamentation or commerce. Weedy tendencies are minor and most taxa persist as secondary-forest components rather than aggressive invaders.

Conservation concerns focus on habitat loss across Amazonian and Guianan lowlands and the lingering taxonomic instability that impedes conservation assessments. As improved phylogenies and standardized taxonomic treatments become available, species-level Red List evaluations and conservation planning should become more actionable.

Pick a Species to see its components: