Anthurium atramentarium Croat & Oberle

• Genus: Anthurium
• Botanical Background: Described by botanists Croat and Oberle, this species contributes to the expanding diversity of Anthurium. Its discovery has added to the scientific understanding of tropical aroid flora.

• Geographical Range: Native to select tropical regions in Central and South America
• Environment: Naturally grows in warm, moist conditions with filtered light; favors well-draining, organic-rich soils typically found in rainforest understories

Leaves

• Leaves are large, heart-shaped
• Glossy texture 
• Deep green coloration

Inflorescence (Spadix & Spathe)

• Modest dark spathe paired with a slender spadix
• Scent is not prominent, the structure suggests specialized insect pollination
• Structure aids in attracting specific pollinators, although the species is not noted for a strong scent

Growth Habit

• Terrestrial species grows from a rhizomatous base

• Often forming clumps over time, which aids in its persistence in natural habitats

Light Requirements

• Bright, indirect light, which helps maintain its vibrant leaf coloration

Watering & Humidity

• Requires regular watering to keep the soil consistently moist without waterlogging
• High humidity is essential, and occasional misting can be beneficial

Soil & Potting Mix

• A well-aerated, peat-based potting mix enriched with organic matter is ideal
• Containers must offer excellent drainage to prevent root rot

Temperature & Fertilizer

• The ideal temperature range is between 65°F and 80°F

• A balanced, water-soluble fertilizer during the growing season supports healthy growth

Division & Cutting

• Most successful through rhizome division
• Ensure that each division has an adequate root system to establish new growth

Seeds

• Less common with this species; requires a warm, humid environment and careful attention to germination conditions

Typical Issues

• Spider mites and mealybugs
• Fungal issues and root rot

Treatment Recommendations

• Using organic insecticidal soap
• Adjusting watering practices are effective methods for managing pests and preventing disease

• Name reflects its dark, ink-like foliage

• Rarity and distinctive appearance have made it a subject of interest among botanical enthusiasts and collectors

• Prized for its unusual appearance and limited availability, making it a valued addition to specialized plant collections

Wild Population Status

• Limited populations in the wild and potential threats from habitat loss, conservation efforts are important for this species

Market Availability

• Not commonly found in mainstream cultivation and is considered rare, often sought after by dedicated collectors.