Pothosilla

Pothosilla is a hypothetical genus of evergreen climbing plants in the family Araceae. The name combines pothos with the Latin diminutive -illa and is used here for illustrative purposes; it is not currently recognized in formal taxonomic databases.

In the described concept, pothosilla plants are vines with heart-shaped leaves that may be solid green or variegated with cream or yellow. Leaves are typically arranged alternately along slender stems, which develop aerial roots to aid attachment to supports. The growth habit ranges from trailing to climbing, and under favorable conditions the vines can reach several meters in length.

Cultivation of pothosilla, in this illustrative context, emphasizes traits common to pothos relatives. They prefer bright indirect light but tolerate medium light with reduced variegation. They require a well-draining potting mix and should be watered moderately, allowing the top portion of the soil to dry between waterings to avoid root rot. Typical indoor temperatures range from 18 to 26°C with moderate to high humidity. Fertilization during the growing season is optional but can support faster growth. Propagation is commonly via stem cuttings, which root readily in moist media and can be trained to climb supports such as trellises or stakes.

Taxonomy and species (illustrative) include Pothosilla aurea and Pothosilla picta, representing leaf color variants. The genus is framed to explore pothos-like diversification within Araceae and is not a formal taxon. Related groups in concept include Epipremnum and Philodendron. See also pothos, Epipremnum, Araceae.