Philodendron tortum vs Philodendron polypodioides: Similar Look, Different Species

A Common Misidentification

Philodendron tortum is often offered as “Philodendron polypodioides”. Both can look like climbing philodendrons with divided leaves at first glance, but they are not interchangeable plants, and “polypodioides” is not just a shop nickname.

Philodendron polypodioides was described in 1966. For home growers, most plants sold under that name are best understood as Philodendron pedatum-type plants rather than a separate species. In shops and collections, “polypodioides” is often used for plants with narrower, more cut leaves.

Quick comparison: P. tortum has many narrow, strap-like divisions across each leaf. Plants sold as “P. polypodioides” usually sit close to Philodendron pedatum, often with a triangular or pedate leaf shape and lobes that become more divided as the plant climbs.

1. Names and Background

Philodendron polypodioides

• Published: 1966, Acta Botanica Neerlandica 15: 143, by Jonker & Jonker.
• Current use: most plants sold under this name are best treated as Philodendron pedatum-type plants.
• In cultivation: often used for plants with narrower, more cut leaves.

Original plant details

• Petiole: described as terete, around 80 cm.
• Blade shape: trilobate, triangular, and cordate to sagittate in outline.
• Leaf divisions: anterior and posterior lobes cut into long, narrow laciniae, described up to around 25 cm long and 1-3 cm wide, ribbon-like and sometimes bifurcate, with up to six parallel primary veins.
• Original collection area: Suriname, Litani River / Oelemari River area near an airstrip.
• Later: Jonker & Jonker described it as a distinct species in section Polytomium and compared it with P. fendleri; it was later placed under P. pedatum.

Most houseplants sold as “polypodioides” use the name for a narrow, heavily divided pedatum-type plant. Do not rely on the tag by itself.

Philodendron pedatum

• Accepted species: Philodendron pedatum (Hook.) Kunth
• Published: 1841, Enum. Pl. 3: 49
• Leaf variation: the species is broad and variable, and P. polypodioides is linked to this wider plant group.
• When you see “polypodioides” on a plant: treat it as part of the pedatum group unless the seller gives clear origin or clone details.

Philodendron tortum

• Accepted name: Philodendron tortum M.L.Soares & Mayo
• Family: Araceae
• Published: 2001, Feddes Repertorium 112(1-2): 42-44
• Type locality: Brazil, Amazonas, Manaus region, Ducke Forest Reserve / Reserva Florestal Ducke
• Habit: root-climbing hemiepiphytic liana

Summary

➜ Philodendron polypodioides is a botanical name from 1966, but most plants sold under that name are best treated as Philodendron pedatum-type plants.

➜ In cultivation, “polypodioides” usually points to a deeply divided plant in the pedatum group, not Philodendron tortum.

➜ Philodendron tortum is an accepted species and should not be sold as “polypodioides”.

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2. Natural Distribution

Philodendron tortum

• Native range: northern Brazil to Bolivia
• Type-area context: described from material collected at or near Ducke Forest Reserve in central Amazonas, in the Manaus region
• Habitat: wet tropical forest, where it climbs trunks and other vertical surfaces rather than staying as a ground-running vine

Philodendron pedatum and plants sold as “Philodendron polypodioides”

• Native range: Bolivia; Brazil (North, Northeast, West-Central, Southeast); Colombia; Ecuador; French Guiana; Guyana; Suriname; Venezuela
• Why “polypodioides” remains common in cultivation: the original name is tied to Suriname material, and growers still use it for plants with narrower, more cut leaves in the pedatum group.
• Traits to compare: plants in this group can differ from clone to clone, so compare leaf shape, lobe width, and new climbing leaves rather than the name alone.

3. Morphological Differences

Both plants can have deeply divided leaves. Lobe width, leaf outline, and the new leaves produced while climbing separate them more clearly.

Three leaf shapes you may see

• P. tortum: many slim segments repeat across the leaf as it enlarges.
• P. polypodioides as originally described: a triangular, trilobate blade with front and rear lobes cut into long, narrow laciniae.
• P. pedatum in the broad modern sense: highly variable; many cultivated plants have broader lobes and a heavier leaf, with deeper cutting appearing as the plant matures and climbs.

Leaf Structure

Why young plants are harder to ID

• Weak light and no climbing support blur the differences: leaves stay smaller, internodes stretch, and the mature shape is harder to read.
• New climbing leaves show more: leaves produced on a pole or plank usually reveal the plant’s mature shape more clearly.
• Check the tag against the plant: “polypodioides” often indicates a cultivated look, not a guaranteed match to the 1966 description.

4. Growth Habits in Nature and Cultivation

Philodendron tortum

• Growth rate: moderate in steady warmth and strong filtered light; slows quickly when light is limited
• Climbing habit: root-climber that grips poles and trunks tightly
• Houseplant behaviour: leaves stay divided into many slim segments
• Growing support: a pole or plank helps the plant produce climbing leaves instead of stretched vining growth

Plants sold as “Philodendron polypodioides”

• Growth rate: often vigorous once established in bright conditions
• Climbing habit: strong climber with prominent aerial roots
• Houseplant behaviour: can expand fast and benefits from being trained upward early
• When leaves become more divided: steady light, a stable climbing surface, and evenly moist, airy substrate help the plant size up well

Both plants lose leaf quality as unsupported vines. Give them a pole or plank if you want stronger growth and larger, more typical leaves.

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5. Environmental Preferences and Indoor Care Differences

Care overlaps because both are climbing philodendrons from wet tropical forest conditions. The differences show in growth speed, leaf shape, and how quickly the plant stretches when light, climbing structure, or moisture is inconsistent.

Light Requirements

In low light, both plants grow more slowly, use less water, produce longer internodes, and lose the compact growth that makes the leaves easier to identify.

Humidity & Temperature

Watering & Substrate

Both need evenly moist roots without a soggy pot. Use a mix that drains fast, re-wets evenly, and still holds enough moisture between waterings.

• Substrate: a well-draining aroid mix with chunky bark, mineral aeration, and a moisture-holding component.
• Watering trigger: water again when the top 15-25% of pot depth has dried, then water thoroughly so the full mix is refreshed.
• Water use: once a plant is climbing and producing larger leaves, it often dries the pot faster.

Most problems come from two extremes: letting the pot dry hard again and again, or keeping the mix constantly wet.

6. Why tortum Is Not “polypodioides”

1. Philodendron polypodioides is linked to Philodendron pedatum: the name was published in 1966, but most plants sold under it belong around the pedatum group.
2. Philodendron pedatum is variable: different clones can show different amounts of lobing, width, and leaf subdivision, especially once they climb.
3. Philodendron tortum stays separate: it is an accepted species with a different leaf structure.
4. Climbing changes the leaves: many divided-leaf philodendrons look less distinctive when small or grown as trailing vines, then show clearer differences as they grow upward.
5. Wrong names can continue through cuttings: once a misnamed plant is propagated and sold, the wrong name can stay attached for years.

• Philodendron tortum = accepted species, published in 2001.
• Philodendron polypodioides = name from 1966, now usually placed under Philodendron pedatum.

Philodendron tortum is not the same plant as “Philodendron polypodioides”. A Philodendron tortum should not be renamed “polypodioides”, even if both have deeply divided leaves.

7. How to Tell Them Apart Reliably

Young plants, fresh cuttings, and trailing vines can all look less distinctive than plants growing upward.

A. Leaf shape

• P. tortum: many slim, strap-like divisions repeat across the leaf, and the shape stays consistent as the plant sizes up
• “P. polypodioides” within the pedatum group: a triangular or pedate shape becomes more divided, often with visible leaf-to-leaf change during size-up

B. New climbing leaves

• P. tortum: bigger leaves remain slim-segmented
• “P. polypodioides” within the pedatum group: lobing often increases; leaves may become more complex and more variable as the plant matures

C. If the ID is still unclear

• Train it upward: new climbing leaves are usually easier to identify than older trailing leaves.
• Compare the newest two leaves: plants in the pedatum group often change shape as they size up; tortum stays more consistent.
• Compare several photo references: one marketplace photo can be misleading, especially if the plant is juvenile or grown without climbing support.

Philodendron taxonomy relies heavily on flowers, and most houseplants never bloom indoors. At home, leaf shape on an established climbing plant gives the best comparison.

8. Philodendron tortum vs polypodioides: Comparison Table

9. Before You Buy

Philodendron tortum is an accepted species with a slim, strap-like leaf structure. “Philodendron polypodioides” is usually used in cultivation for a more deeply cut plant within the Philodendron pedatum group. They may look similar when young, but older climbing leaves show different shapes.

When buying, look for multiple photos of the same plant, including the newest leaf, the stem, node spacing, and the climbing setup. A plant growing upward is easier to judge than a fresh cutting or trailing vine. If the name is unclear, compare leaf shape, lobe width, growth habit, and newest leaves rather than relying on the tag alone.

Need help checking a plant? Drop us a line or compare several photos against specialist references before buying a cutting based on one image.

➜ Shop Philodendron tortum

➜ Shop “Philodendron polypodioides” (typically pedatum-side)

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10. References

Soares, M.L.C., & Mayo, S.J. (2001). Three new species of Philodendron (Araceae) from the Ducke Forest Reserve, central Amazonas, Brazil. Feddes Repertorium 112(1-2), 37-45. https://doi.org/10.1002/fedr.20011120107

https://www.tropicos.org/name/50177035

Jonker, A.M.E., & Jonker, F.P. (1966). Philodendron polypodioides A.M.E.Jonker & Jonker. Acta Botanica Neerlandica 15, 143-154.

https://www.tropicos.org/name/2103573

Kew: Plants of the World Online (POWO).

https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:321430-2

https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:87928-1

https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:193152-2

IPNI: International Plant Names Index.

https://www.ipni.org/n/321430-2

https://www.ipni.org/n/87928-1

https://www.ipni.org/n/193152-2

World Flora Online (WFO).

https://www.worldfloraonline.org/taxon/wfo-0000268901

https://www.worldfloraonline.org/taxon/wfo-0000268873

GBIF: Global Biodiversity Information Facility.

https://www.gbif.org/species/2870881

https://www.gbif.org/species/2870914

International Aroid Society (IAS).

https://www.aroid.org/

https://www.aroid.org/cultivarregistry

https://www.aroidcultivars.org/

Aroid Pictures.

http://www.aroidpictures.fr/GENERA/PHILODENDRONM-Z/philopolypodioides.html

http://www.aroidpictures.fr/GENERA/PHILODENDRONM-Z/philotortum.html