PlantaeDB Logo
Login Sign-up

Genus Cheirostylis 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!

Cheirostylis (family Orchidaceae, subfamily Orchidoideae, tribe Cranichideae, subtribe Goodyerinae) comprises approximately 90 terrestrial orchid species distributed across tropical and subtropical Asia, from the Himalaya and southern China through Southeast Asia to New Guinea and the Pacific islands (POWO, 2024; WFO, 2024). The genus is typified by Cheirostylis ovata Blume, the name under which the original description was published (Ormerod, 2010).

Plants are small, evergreen herbs arising from tuberous or fleshy rhizomes. Basal leaves are usually ovate to lanceolate, sometimes variegated, and lack conspicuous stipules. The inflorescence is an erect, few‑flowered raceme; flowers are resupinate, relatively small, with a dorsal sepal forming a hood, spreading lateral sepals, narrow petals, and a lip that is typically three‑lobed with a basal claw and a glandular or hairy callus. The column is short and bears four mealy pollinia; the ovary is inferior and the fruit is a dehiscent capsule bearing dust‑like seeds (Seidenfaden, 1992).

Species richness peaks in the Himalayan–Indochinese region and the Malesian archipelago, where numerous narrow endemics occur on limestone, moist forest floors, or montane habitats up to 2 000 m (Ormerod, 2010). Many taxa are restricted to single islands or mountain ranges, reflecting strong regional speciation.

Pollination is largely undocumented, but the floral morphology suggests specialized insect vectors; several species exhibit cleistogamous self‑fertilisation, which may aid colonisation in disturbed sites (Chase et al., 2009). Seed dispersal follows the Orchidaceae pattern of minute, wind‑borne dust seeds.

Phylogenetic work supports Cheirostylis as distinct within Goodyerinae, separate from the closely related Goodyera (Chase et al., 2009). Historical treatments reduced the genus to a section of Goodyera (Schlechter, 1918), but modern monographs and molecular data confirm its generic status, with only limited synonymisation (Ormerod, 2010). Some authors continue to treat certain Himalayan taxa as subspecies of C. ovata, but the consensus accepts them as separate species (POWO, 2024).

In horticulture, Cheirostylis is prized for attractive foliage and occasional ornamental value; however, it has no significant agricultural or timber use and is not considered invasive.

Conservation concerns are acute: many species have extremely limited ranges and suffer from habitat loss. Targeted field surveys and ex‑situ cultivation are needed to secure the long‑term survival of the most threatened taxa.

Pick a Species to see its components: