Amorphophallus smithsonianus Sivadasan

• Genus: Amorphophallus
• Botanical Background: Described by botanist Sivadasan, the species has drawn attention from botanists working in regional floras; its study has contributed to a better understanding of the diversity within the arum family.

• Geographical Range: Native to parts of tropical Asia. 
• Environment: Thrives in humid, shaded forest clearings with well-drained soil and typically grows in areas that provide consistent moisture and filtered light under dense canopy cover.

Leaves

• Large, with a lanceolate shape and a textured surface
• Deep green color often features subtle veining patterns

Inflorescence (Spadix & Spathe)

• Prominent spadix wrapped by a conspicuous spathe
• Spathe may display shades of green and cream
• To emit a slight odor during bloom

Growth Habit

• Terrestrial growth habit and develops from an underground rhizome
• Forms a solitary clump each season

Light Requirements

• Bright, indirect light
• Adapts well when shielded from direct sunlight

Watering & Humidity

• Regular watering is essential
• Prefers a high-humidity environment with well-distributed moisture

Soil & Potting Mix

• A loose, well-draining potting mix that mimics the natural forest floor
• Combination of organic matter and perlite works well

Temperature & Fertilizer

• Warm conditions with temperatures remaining in a tropical range
• Balanced liquid fertilizer applied monthly during the growing season

Division

• Dividing the rhizome in early spring supports new growth and maintains plant health

Seeds

• Seeds can be germinated under controlled conditions
• Success requires precise temperature and humidity settings
  

Typical Issues

• Spider mites and mealybugs
• Susceptible to fungal infections if overwatered

Treatment Recommendations

• Maintaining proper air circulation
• Using organic insecticidal soap
• Fungicide safe for aroids is recommended

• Holds cultural intrigue among botanists and horticulturists
• Unique blooming cycle and architecture have spurred local interest and regional research projects

• Prize this species for its rare inflorescence
• Exotic appearance makes it a coveted specimen for dedicated collectors

Wild Population Status

• Considered uncommon in the wild
• Conservation initiatives focus on preserving its natural habitat

Market Availability

• Rare find in cultivation
• Specialist nurseries and botanical gardens occasionally offer it