PlantaeDB Logo
Login Sign-up

Genus Trichopilia in Family Orchidaceae

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!

Trichopilia is a Neotropical genus of Epidendroideae (Oncidiinae) comprising approximately thirty to forty species that range from Mexico through Central America into northern South America, with centers of diversity in Costa Rica and Panama and additional richness in northern and Andean South America; the genus typically occurs in humid lowland to montane cloud forests and adjacent moist forest edges. The type species is Trichopilia tortilis (Rchb.f.) Rchb.f. The plants are epiphytic, sympodial herbs forming compact clusters with slender pseudobulbs that bear one (rarely two) leathery, narrowly elliptic to oblanceolate leaves from their apex; the leaves are usually glabrous and articulate at a distinct abscission zone, and the pseudobulbs are subtended by persistent, papery sheaths. The inflorescences are basal, usually pendent, racemose to few-flowered, bearing showy, mostly resupinate flowers; the dorsal sepal and lateral sepals are free to somewhat concave, the petals are often broader and sometimes concave or undulate, and the labellum is typically galeate or hooded, lacking spurs and usually reduced to an emarginate or deeply notched apex; the column is short, with a prominent column-foot, four pollinia arranged in two unequal pairs, and a simple, transverse or sub-basal stigma. The ovary is superior and three-locular with axile placentation, and the fruit is a capsule with minute dust-like seeds.

Diversity peaks in the Costa Rican–Panamanian isthmus, where several narrow endemics occur; in the Andes, species are found at mid to high elevations in cloud forest, whereas northern lowland taxa occupy wet lowland forests. The genus thus spans major biogeographic patterns of Central American and northern Andean disjunctions. The base chromosome number for Trichopilia is consistently reported as x=14 (2n=28), which is well established in the Orchidaceae (Chase et al., 2015). Pollination by male euglossine bees is documented in some species, and nectar or fragrance rewards have been observed; seed dispersal follows the wind-dispersed capsule strategy typical of epiphytic orchids.

Recent treatments place Trichopilia within Oncidiinae, allied to Cyrtochilum, Lophiaris, and Psychopsis, based on morphological synapomorphies and molecular data (Chase et al., 2015; Pridgeon et al., 2009; Chase et al., 2015). Species richness remains only approximate across checklists and revisions; although H.G. Jones’s revision synthesized many names, authoritative resources (e.g., WCSP, 2024; GBIF, 2024) still differ in accepted counts, reflecting ongoing taxonomic instability. The genus is horticulturally important for fragrant, long-lasting, waxy flowers cultivated by orchid enthusiasts, particularly in Costa Rican–Panamanian taxa that offer striking labellum morphology. Although minor local impacts are known, Trichopilia is not generally invasive and faces habitat loss through deforestation; research priorities include integrative phylogenetics and standardizing species concepts across checklists.

Chase et al., 2015; Pridgeon et al., 2009; WCSP, 2024; GBIF, 2024.

Pick a Species to see its components: