Philodendron riparium Engl.
  • Bot. Jahrb. Syst. 37: 128 (1905) 

Notes: Distribution: Ecuador

General Description

Stem scandent, internodes 10 cm or longer, 2 cm thick. LEAVES: Petioles of the biggest leaves terete, up to 80 cm long, 1-1.2 cm thick, base broadly and shortly sheathed. Blade thick, coriaceous, oblong-cordate, 60-70 cm long, 35-40 cm wide; posterior lobes sub-triangular, rounded, separated by an obtuse, triangular sinus; anterior lobe oblong, gradually narrowing in a curved extrorse line towards the apex, the apex itself rather long-acuminate, 5-6 times longer than the posterior lobes. Primary lateral veins numerous, 5-12 mm apart, and emitting secondary veins departing at a very acute angle, smaller veins ('venis') lying across the secondary veins; primary lateral veins of the posterior lobes joined together into very short, thick, denuded posterior ribs. INFLORESCENCE: Peduncle moderately robust, ca. 10 cm long. Spathe oblong, apiculate, slightly constricted halfway, up to 15 cm long, convolute, 2.5 cm in diameter. Spadix sub-sessile, female zone cylindroid, 5 cm long, 1.5 cm thick, male zone claviform, almost 10 cm long, sub-equally as thick at the base as the female zone, attenuating upwards, finally rather obtuse. Pistils cylindroid, sub-truncate, 8-locular, with a rather broad, discoid stigma. Male flowers usually tetrandrous; stamens thick, oblong, thecae broadly linear, obtuse.



Distribution Map

  • Native distribution
Found in
  • Southern America Western South America Ecuador


  • 1 Govaerts, R. & Frodin, D.G. (2002). World Checklist and Bibliography of Araceae (and Acoraceae): 1-560. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • 2 Krause, K. Araceae-Philodendroideae-Philodendreae-Philodendrinae. Das Pflanzenreich. 60 (IV.23Db), (1913).
  • 3 Gardens, K.""Royal Bot World Checklist of Selected Plant Families. (2008).

 Information From

CATE Araceae
Haigh, A., Clark, B., Reynolds, L., Mayo, S.J., Croat, T.B., Lay, L., Boyce, P.C., Mora, M., Bogner, J., Sellaro, M., Wong, S.Y., Kostelac, C., Grayum, M.H., Keating, R.C., Ruckert, G., Naylor, M.F. and Hay, A., CATE Araceae, 14 Dec 2011 . 17 Dec 2011.
  • A All Rights Reserved
Global Biodiversity Information Facility
  • B All Rights Reserved
eMonocot. (2010, 1st November). Retrieved Wednesday, 8th February, 2012, from
  • C Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
The IUCN Red List of Threatened Species(tm)
  • D See for Terms and conditions of use All Rights Reserved
World Checklist of Selected Plant Families
WCSP 2014. 'World Checklist of Selected Plant Families. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; Retrieved 2011 onwards
  • E See You may use data on these Terms and Conditions and on further condition that: The data is not used for commercial purposes; You may copy and retain data solely for scholarly, educational or research purposes; You may not publish our data, except for small extracts provided for illustrative purposes and duly acknowledged; You acknowledge the source of the data by the words "With the permission of the Trustees of the Royal Botanic Gardens, Kew" in a position which is reasonably prominent in view of your use of the data; Any other use of data or any other content from this website may only be made with our prior written agreement.