Bau amosyui (S.Y.Wong, S.L.Low & P.C.Boyce) S.Y.Wong & P.C.Boyce

• Genus: Bau
• Botanical Background: Described by noted aroid experts S.Y.Wong, S.L.Low, and P.C.Boyce, this species has contributed to a deeper understanding of Araceae diversity and evolution.

• Geographical Range: Native to Southeast Asia, with confirmed populations in the tropical lowland regions of Borneo.
• Environment: Thrives in warm, humid conditions with well-draining, nutrient-rich soils, typically growing in the shaded understory of tropical rainforests.

Leaves

• Broadly ovate
• Medium in size
• Featuring a glossy texture
• Subtle variegation along the margins

Inflorescence (Spadix & Spathe)

• Composed of a pale, softly colored spathe and a compact spadix 
• Attracts specialized pollinators, although it generally exhibits little scent

Growth Habit

• Terrestrial, growing from a creeping rhizome that supports a compact, clumping habit ideal for understory environments

Light Requirements

• Performs best in bright, indirect light

Watering & Humidity

• Regular watering is essential
• Maintaining high humidity levels

Soil & Potting Mix

• A loose, well-draining potting mix enriched with organic matter is recommended
• Container that allows for adequate drainage

Temperature & Fertilizer

• Maintain temperatures between 65°F and 80°F
• Apply a balanced, diluted fertilizer to support healthy growth during growing season

Division and Cuttings

• Division of its rhizomes
• Naturally form clumps that can be separated

Seeds

• Less common for home growers; requires controlled pollination and patience for germination

Typical Issues

• Spider mites and mealybugs

Treatment Recommendations

• Mild insecticidal soap or neem oil can be applied safely for pests
• Offering an organic approach to managing infestations without harming the plant

• Valued not only for its rarity but also for its unique morphological features
• Priced for its unusual foliage and inflorescence

• A standout specimen in any collection of aroids

Wild Population Status

• Considered rare, with ongoing concerns regarding habitat loss due to deforestation in its native regions

Market Availability

• Primarily available to experienced collectors
• Rarely seen in mainstream horticultural trade