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Amorphophallus smithsonianus Sivadasan

Introduction & Overview

Common and Scientific Names

  • Scientific Name: Amorphophallus smithsonianus Sivadasan
  • Common Name: Not widely established

Quick Facts

  • Origin: Native to select tropical regions
  • Features: Singular inflorescence and overall unusual appearance

Taxonomy & Classification

  • 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.

Natural Habitat & Distribution

  • 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.

Morphological Characteristics

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

Cultivation & Care

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

Propagation Methods

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

Common Pests & Diseases

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

Notable Traits & Uses

  • 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

Conservation & Availability

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

References & Resources

Further Reading

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