Anthurium penonomense Croat

• Genus: Anthurium
• Botanical Background: Described by the renowned botanist Thomas B. Croat, this species has contributed to the detailed understanding of aroid diversity in tropical ecosystems. Its identification underscored advances in tropical plant taxonomy during the late 20th century.

• Geographical Range: Indigenous to parts of South America, where it is typically found in tropical and subtropical regions.
• Environment: Thrives in high humidity and warm climates; favors well-drained, organic-rich soils and naturally occurs in shaded forest understories where diffuse light supports its growth.

Leaves

• Large, with a glossy texture 
• Moderately heart-shaped outline

Inflorescence (Spadix & Spathe)

• Colorful spathe paired with a central spadix
• Spathe, often exhibiting hues of green, cream, or blush, contrasts with the spadix and may emit a mild scent that aids in attracting pollinators

Growth Habit

• Grows terrestrially, forming clumps with a creeping network of roots
• Displays a semi-epiphytic tendency when growing in natural, forested settings

Light Requirements

• Bright, indirect light
• Direct sunlight can lead to leaf burn, so filtered illumination is ideal

Watering & Humidity

• Maintain a consistently moist potting medium while avoiding waterlogging
• High humidity is beneficial; misting or using a humidifier can replicate its native conditions

Soil & Potting Mix

• A loose, well-draining, peat-based potting mix enriched with organic material is recommended
• Containers should allow for good drainage and air circulation

Temperature & Fertilizer

• Optimum temperature range is between 65°F and 80°F
• A balanced liquid fertilizer applied every 4 to 6 weeks during the growing season can support healthy growth

Division

• Most reliable propagation method is by division; carefully separating clumps with intact roots is effective

Stem Cuttings (if applicable)

• Stem node cuttings may also succeed under proper conditions

Seeds

• Less common due to often slow germination and the need for specific conditions

Typical Issues

• Spider mites and mealybugs
• Fungal infections like root rot

Treatment Recommendations

• Treat pests with insecticidal soap or neem oil 
• Adjust watering practices to prevent fungal issues

• Appreciated not only for its botanical uniqueness but also for its role in showcasing the biodiversity of tropical forests
• Discovery has enriched the scientific understanding of neotropical aroids

• Prize for its elegant leaf structure and captivating inflorescence, making it a desirable addition to specialized ornamental collections

Wild Population Status

• Detailed conservation assessments are limited, habitat loss in tropical regions poses potential risks

Market Availability

• Considered uncommon in commercial horticulture due to its rarity and specific growing conditions
• Available through specialist nurseries and plant societies