Adelonema yanamonoense Croat & Mansell

• Genus: Adelonema
• Botanical Background: The species was described by botanists Croat & Mansell, who recognized its distinctive features in the early 1980s. It remains one of the more obscure species within the Araceae family.

• Geographical Range: Adelonema yanamonoense is native to the Yanamono region in the Peruvian Amazon, where it is typically found in lowland rainforests.
• Environment: This species thrives in the humid, tropical environment of its native range, requiring high humidity, well-drained soils, and indirect light. It is adapted to areas with consistent rainfall and moderate temperatures year-round.

Leaves

• Long, lance-shaped, and deeply veined
• Typically dark green with a glossy, smooth texture
• Prominent midrib with slight undulation along the edges

Inflorescence (Spadix & Spathe)

• Small spathe, white to cream-colored

• Modest-sized spadix that emits a faint odor
• Pollination is typically done by beetles

Growth Habit

• Terrestrial, small herbaceous plant with a creeping rhizome
• Non-climbing and non-invasive
• Ideal for compact gardens or indoor spaces
  

Light Requirements

• Requires bright, indirect light to thrive

• Direct sunlight can scorch leaves; low light may lead to weak growth

Watering & Humidity

• Keep soil consistently moist but avoid overwatering

• Prefers high humidity (60% or higher) to mimic its tropical habitat

Soil & Potting Mix

• Use a well-draining, organic-rich potting mix

  (blend of peat, perlite, and orchid bark)

• Ensures both aeration and moisture retention

Temperature & Fertilizer

• Thrives in temperatures between 65–80°F (18–27°C)

• Apply a balanced liquid fertilizer every 4–6 weeks during the growing season

Division

• Most commonly propagated by dividing the rhizomes

• Carefully separate sections and replant each with roots attached

Stem Cuttings (if applicable)

• Leaf cuttings may root under high humidity

• This method is less reliable than rhizome division

  
  

Seeds

• Possible but rarely used due to slow seedling growth

• Seeds are uncommon in cultivation and require patience

Typical Issues

• Mealybugs, spider mites, and aphids may infest under low humidity or stress

• Root rot can occur if the plant is overwatered or lacks drainage

Treatment Recommendations

• Treat pest infestations with insecticidal soap or neem oil

• Improve drainage and reduce watering frequency to prevent rot

• Fungicides may be used to manage fungal infections

• This species has been relatively under-studied compared to other Aroids

• Its rarity in cultivation makes it especially appealing to collectors and enthusiasts

• Prized for its attractive foliage, particularly in terrariums or indoor plant collections

• Still considered a rare find among most plant lovers

Wild Population Status

• No significant conservation concern currently

• However, limited distribution and specific habitat needs could make it vulnerable in the wild

Market Availability

• Rare in cultivation and mostly found in specialized collections

• Not commonly available through standard commercial nurseries