Homalomena is a genus of flowering plants in the family Araceae (order Alismatales), comprising clump-forming evergreen perennials native to tropical Asia and China. The genus encompasses roughly 100–140 species, though treatments vary; some authors have proposed splitting off the neotropical members into a separate genus, Adelonema.
Plants in this genus typically produce rosettes of mainly heart-shaped to arrowhead-shaped leaves on petioles rising from a compact rhizome. The inflorescence follows the typical aroid structure: tiny, petal-less flowers are densely arranged on a spadix enclosed by a usually greenish, leaf-like spathe that is largely hidden among the foliage. A distinctive characteristic of many Homalomena species is their pronounced fragrance of anise.
Several species, particularly Homalomena occulta and various cultivated selections, are grown as ornamental houseplants for their attractive foliage in shades of green and, in cultivated forms, bronze, red, or variegated patterns. The genus name reflects a curious linguistic history: it derives from an apparent mistranslation of a Malayan vernacular name, rendered as a combination of the Greek homalos (flat) and mene (moon).
Etymology
The genus name Homalomena derives from an apparent mistranslation of a Malayan vernacular name, rendered into a combination of the Greek words homalos (flat) and mene (moon).
Distribution
Homalomena species are native to tropical Asia and China, with the greatest diversity in Southeast Asia, including Borneo, the Philippines, and mainland Southeast Asia. A smaller group of neotropical species has sometimes been segregated into the genus Adelonema.
Taxonomy Notes
Some authors have proposed splitting the genus, moving all neotropical Homalomena species into the separate genus Adelonema, which would restrict Homalomena to its core Asian range. Under GBIF, the genus is accepted within the family Araceae, order Alismatales.
Cultivation
Many Homalomena species and cultivars are grown as ornamental houseplants, valued for their attractive heart-shaped foliage and tolerance of lower-light indoor conditions. The pronounced anise fragrance of the leaves is a characteristic feature noted in cultivation.
