Pothoidium lobbianum Schott

• Genus: Pothoidium
• Botanical Background: Described by Heinrich Wilhelm Schott in 1857 in Oesterreichisches Botanisches Wochenblatt. Subsequent taxonomic treatments (Boyce & Hay 2001) confirm its distinct status among pothos‑like aroids.

• Geographical Range: Lan Yü Island (Taiwan), Sulawesi, Maluku, and the Philippines
• Environment: Thrives as a terrestrial to climbing shrub in humid, shaded tropical forests on well‑drained, organic soils with consistently high humidity and year‑round warm temperatures.

Leaves

• Simple, glossy, entire-margined leaves up to 20 cm long
• Ovate to elliptic with a smooth surface and dark green coloration

Inflorescence (Spadix & Spathe)

• Produces a small spadix enclosed by a greenish-white spathe
• Flowers are functionally dioecious
• Lacking fragrance
• Pollinated primarily by small insects

Growth Habit

• A climbing shrub with a short rhizome
• No true tubers

Light Requirements

• Bright, indirect light
• Avoid direct sun

Watering & Humidity

• Keep evenly moist but not waterlogged

• Maintain humidity above 60%

Soil & Potting Mix

• Use a rich, well-draining aroid mix (peat, bark, perlite)

Temperature & Fertilizer

• Ideal range 18–28 °C
• Fertilize monthly during growing season with balanced liquid feed

Division and Cuttings

• Easily propagated via rhizome division or stem cuttings with at least one node 
• Root in water or moist media

Seeds

• Rarely cultivated from seed
• Germination uncommonly attempted in horticulture

Typical Issues

• Susceptible to spider mites, mealybugs, and root rot under overwatering

Treatment Recommendations

• Use insecticidal soap or neem oil for pests
• Improve drainage and reduce watering to manage root issues
  

• As the sole member of its genus, P. lobbianum has unique inflorescence architecture among pothoid aroids

• Cultivated for its attractive foliage and rarity
• Occasionally harvested for local fiber use

Wild Population Status

• Not currently assessed by IUCN
• Wild harvesting occurs but no major conservation concerns documented

Market Availability

• Rare in cultivation and seldom found in commercial trade outside specialist aroid circles