Philodendron palaciosii Croat & Grayum
  • Rodriguésia 56: 106 (2005) 

Notes: Distribution: Ecuador (Napo)

General Description

Terrestrial or hemiepiphytic, 0.5-1 m tall or appressed climbing to 3 m; stem sometimes decumbent or pendent, 1-1.2 cm diam., internodes 1-4 (6) × 7-15 cm diam., matte, gray-green to olive-green, drying ribbed, weakly striate. LEAVES: Petioles 12-23 cm long, dark green to yellowish brown, matte and finely costate, minutely granular on surface, sheathed to near the middle or up to 1 cm below blade attachment, sheath broadly winged, splayed widely at apex to 3.4 cm wide when flattened, rounded and weakly free-ending at apex, the free portion of petiole sharply and deeply D-shaped, 2-3 mm diam.; blades subcoriaceous, ovate to ovate-elliptic, 19.5-29 × (7.8)10-13.7 cm, 1.6-2.3 times longer than wide, 1.2-1.6 times longer than petioles, gradually long-acuminate at apex, prominently decurrent at base, bicolorous, subvelvety matte, dark green (sometimes almost blackened) drying matte and gray above, paler, matte and yellow-green to gray-green below; midrib broadly convex and slightly paler to concolorous, finely costate above, broadly convex and paler, minutely granular below; primary lateral veins 13- 17 per side, mostly aggregated near the base, arising in a sweeping curve (especially those near the base) at an acute angle then spreading at 40-70° angle, minutely undulate and scarcely more prominent than the minor veins on upper surface, weakly raised and paler than surface below, minor veins moderately obscure. INFLORESCENCE 1 per axil, rarely 2 per axil (Croat et al. 87854); peduncle 10-16 cm × 3-4 mm, medium green with dark green striations, drying yellowish green, dark brown or pale yellow-brown; spathe 11.5-16 × 1.5-1.7 (3) cm, white to creamy white, or greenish yellow, the spathe tube green, the lower 2/3 of the entire inner surface greenish white, lined with intermittant red streaks, drying greenish yellow-brown, pale green within post anthesis with brown resin canals; spadix 6-15 cm long, elongating in fruit with the staminate spadix protruding slightly beyond the end of the spathe, creamy white; pistillate portion 2-3.3 cm × 7-9 mm, pale green to pale yellow-green; staminate portion 5-5.5 cm long, the sterile staminate portion 1 cm × 8 mm diam.; pistils 1.8 × 7-9 mm, densely and minutely warty at apex; stigma 0.5-0.6 mm diam., drying dark brown, the style apron to 1 mm wide, pale brown. INFRUCTESCENCE orange.

Diagnostic Description

Characterized by matte drying, pale yellow-green blades which are ovate and attenuated at the base.


Tropical moist forest (Tmf), Tropical wet forest (T-wf), Premontane moist forest (P-mf), and Premontane rain forest (P-rf) life zones.


Ranges from Central Ecuador (Napo, Pastaza, Morona-Santiago) to Peru (Amazonas, San Martín).

Distribution Map

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


  • 1 Govaerts, R.H.A. (2011). World checklist of selected plant families published update. Facilitated by the Trustees of the Royal Botanic Gardens, Kew.
  • 2 Croat, T.Bernard, Swart, A. & Yates, E.D. New species of Araceae from the Río Cenepa region, Amazonas Department, Perú. Rodriguésia. 56(88), (2005).

 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
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
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