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Arisaema erubescens (Wall.) Schott

Introduction & Overview

Common and Scientific Names

  • Scientific Name: Arisaema erubescens (Wall.) Schott
  • Common Name: Common names can vary regionally

Quick Facts

  • Origin: Native to the Himalayan foothills
  • Features: Distinguished by its eye-catching spathe coloration and robust foliage

Taxonomy & Classification

  • Genus: Amorphophallus
  • Botanical Background: Described by Nathaniel Wallich and later revised by Schott, the species has been a subject of botanical study for its distinctive morphology and its representation of Himalayan flora. Its historical documentation in botanical literature underlines its significance in aroid research.

Natural Habitat & Distribution

  • Geographical Range: Indigenous to the Himalayan region, including areas in northern India, Nepal, and Bhutan and is commonly found in forested regions and mountainous slopes.
  • Environment: Thrives in humid, shaded areas with rich, well-draining soils and typically grows in regions that experience a cool to moderate climate, benefiting from ample moisture and a stable, temperate environment.

Morphological Characteristics

Leaves

  • Broad, lobed
  • Medium to large in size
  • The leaf texture is generally robust with a subtle sheen
  • Coloration ranges from deep green to variegated patterns in some specimens

Inflorescence (Spadix & Spathe)

  • Marked by a prominent spathe that often exhibits a reddish tint
  • Spadix that has intricate pollination strategies
  • The combination of colors and form attracts specific insect pollinators

Growth Habit

  • Is terrestrial and develops from a tuber or a compact rhizome
  • Exhibits an erect habit when in bloom, with foliage emerging directly from the ground

Cultivation & Care

Light Requirements

  • Bright, indirect light
  • A location with dappled sunlight or partial shade is ideal

Watering & Humidity

  • Consistent moisture is key, though care must be taken to prevent waterlogging
  • Regular, moderate watering ensures that the soil remains evenly moist
  • Preference for high ambient humidity

Soil & Potting Mix

  • A rich, well-draining organic mix is preferred
  • Use containers with adequate drainage if cultivating in pots

Temperature & Fertilizer

  • Prefers temperate conditions with moderate temperature ranges
  • A balanced, slow-release fertilizer during the growing season

Propagation Methods

Division and Cuttings

  • Most effectively achieved through rhizome division during the plant's dormancy
  • Encourages healthy new growth while preserving the integrity of the parent plant

Seeds

  • Require a period of stratification to break dormancy, making division the more common technique

Common Pests & Diseases

Typical Issues

  • Spider mites, or aphids
  • Fungal root rot if excessive moisture is maintained in the soil

Treatment Recommendations

  • Both organic remedies such as neem oil and appropriate insecticidal soaps 
  • Careful adjustments in watering practices, offer effective treatment

Notable Traits & Uses

  • The reddish hue of the spathe has spurred local folklore and symbolic associations in some Himalayan cultures
  • Its unique morphology plays an important ecological role in attracting specific pollinators
  • Prized for its unusual inflorescence and the striking
  • Its rarity and distinctive appearance make it a coveted specimen in specialized collections

Conservation & Availability

Wild Population Status

  • Not currently listed as endangered
  • Habitat loss and environmental changes in its native regions warrant ongoing conservation attention

Market Availability

  • Moderately available through specialty nurseries and plant societies
  • Its unique traits often make it a sought-after specimen among collectors and botanical enthusiasts

References & Resources

Further Reading

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