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Epipremnum aureum
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Noble Pothos (Epipremnum nobile)
Silhouette: T. Michael Keesey
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Epipremnum nobile: The Montane Forest Climber
Inhabiting the high-altitude montane forests of Sulawesi and New Britain, Epipremnum nobile ascends up to five meters along tree trunks using specialized clinging roots. This species occurs at elevations between 1,000 and 1,700 meters, frequently growing alongside Eucalyptus deglupta or within Fagaceae and Eugenia woodlands. It stands out due to its large asymmetrical leaves and striking yellow-orange spathes.
Taxonomy
- ∟ царство Plantae
- ∟ division Tracheophytes (Vascular Plants)
- ∟ subdivision Spermatophytes (Seed plants)
- ∟ Angiosperms
- ∟ monocots
- ∟ order Alismatales (Water plantain order)
- ∟ family Araceae (Arum family)
- ∟ subfamily Monsteroideae
- ∟ genus Epipremnum (Pothos)
- ∟ species Epipremnum nobile (Noble Pothos)
Morphology
Epipremnum nobile produces robust climbing stems that reach up to 5 meters in length and range from 5 to 30 millimeters in diameter. The stems feature internodes of 0.5 to 10 centimeters separated by prominent leaf scars, with a papery epidermis that peels when dried.
Foliage and floral structures display several unique adaptations:
- Leaves: Oblong-elliptic to oblong-ovate blades measuring 25–49 centimeters long and 11–18.5 centimeters wide, sitting on long canaliculate petioles of 34–40 centimeters. The blade base is notably asymmetrical, being acute on one side and rounded or truncate on the other.
- Inflorescence: Multiple spadices clustered together on short, compressed peduncles. The canoe-shaped spathe grows up to 14.5 centimeters long and shows colors ranging from dark cream to orange-yellow on the exterior.
- Flowers & Fruit: Bisexual flowers contain four stamens with 5-millimeter filaments and narrow anthers. The female organ develops into a green berry containing seeds of approximately 3 by 4 millimeters.
Interesting facts
Unlike many lowland Epipremnum species, this plant is adapted to cooler montane environments, growing up to 1,700 meters above sea level. The specific epithet nobile translates to "noble" or "well-known" in Latin, reflecting its prominent and elegant growth form in its native habitats.
Geography of distribution
- Indonesia (Sulawesi)
- Papua New Guinea (New Britain)
Sources
- POWO: Plants of the World Online (Royal Botanic Gardens, Kew)
- WFO: World Flora Online Database
- GBIF: Global Biodiversity Information Facility
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