Anadendrum calcicola P.C.Boyce & S.Y.Wong

• Genus: Anadendrum Schott
• Botanical Background: Described by renowned botanists P.C. Boyce and S.Y. Wong, the species adds to the modern understanding of aroid diversity. Its discovery has helped illuminate evolutionary adaptations in limestone-dwelling tropical plants

• Geographical Range: Endemic to limestone outcrops in tropical regions of Southeast Asia, this species is most often found in areas characterized by rugged karst landscapes
• Environment: Thrives in environments with well-drained, calcareous soils, moderate to high humidity, and stable tropical temperatures, closely mimicking the dappled light and moisture conditions of its native habitat

Leaves

• Broad, ovate to lanceolate leaves
• Leathery in texture
• Display a deep green color with subtle patterning

Inflorescence (Spadix & Spathe)

• Compact spadix surrounded by a delicate spathe
• Scent is generally mild, well adapted for insect-mediated pollination

Growth Habit

• Terrestrial species grows from a rhizomatous base, enabling it to form clumps
• Growth habit is well suited to the rocky, limestone terrain of its natural environment

Light Requirements

• Bright, indirect light, which replicates the filtered sunlight found under forest canopies

Watering & Humidity

• Regular watering with excellent drainage is essential
• Maintaining high humidity levels

Soil & Potting Mix

• A well-aerated potting mix enriched with limestone chips or other calcareous materials is recommended to mimic its native soil conditions
• Containers that allow for ample drainage

Temperature & Fertilizer

• Ideal temperatures align with tropical climates
• Balanced, diluted fertilizer during the growing season will promote healthy development

Division and Cuttings

• Most effective method rhizome division during repotting, ensuring that each division includes sufficient roots to support new growth

Seeds

• Less commonly practiced than division for this species

Typical Issues

• Spider mites and mealybugs
• Inadequate drainage can lead to root rot

Treatment Recommendations

• Using organic insecticides or neem oil to manage pest outbreaks
• Maintaining proper moisture levels
• Good sanitation and adequate airflow can further reduce disease risk

• Adaptation to calcareous soils is rare among aroids, sparking interest in both botanical research and conservation
• Plays an important ecological role in its native limestone habitats

• Robust appearance and unique inflorescence make it a standout addition to tropical plant collections

Wild Population Status

• May face localized threats due to habitat loss in limestone regions, prompting ongoing conservation initiatives among botanical institutions

Market Availability

• Relatively rare in cultivation and is usually available through specialized collectors or reputable botanical institutions rather than mainstream plant nurseries