Philodendron clewellii Croat
  • Ann. Missouri Bot. Gard. 84: 418 (1997) 

Notes: Distribution: Panama (Sierranía de Pirre)

General Description

Epiphytic; stem scandent, smooth, thick, moderately glossy; internodes moderately glossy, 12--18 cm long, 3.5 cm diam., longer than broad, medium green to dark gray-green, epidermis fissured weakly longitudinally; cataphylls 18--25 cm long, soft, sharply 2-ribbed, green, caducous; LEAVES: petioles 24.5--53 cm long, (2)7--14 mm diam., subterete, spongy, dark green, obtusely flattened adaxially, surface green or white streaked-lineate; blades broadly ovate-cordate, subcoriaceous, moderately bicolorous, acuminate at apex (the acumen 1-2 cm long), cordate at base, 30--59 cm long, 20--45 cm wide (1.25--1.83 times longer than wide), (0.95--1.65 times longer than petiole), upper surface dark green, drying brown, semiglossy, lower surface slightly paler, drying brown, sometimes red-brown or green-brown, semiglossy, paler; anterior lobe 26.7--42.2 cm long, 23--45 cm wide (2.36--3.95(5.28) times longer than posterior lobes); posterior lobes broadly rounded, often overlapping, 7--18 cm long, 12--21 cm wide, obtuse to rounded; sinus narrowly closed; midrib weakly raised to almost flat, purple-spotted, paler than surface above, convex, darker than surface below; basal veins 3--5 per side, all free to base (or weakly fused); posterior rib absent or to 1.5 cm long, not at all naked; primary lateral veins 4--7 per side, departing midrib at a 45--60º angle, straight to the margins, weakly sunken, concolorous above, raised below, secondary veins weakly visible; minor veins visible, sparse, discontinuous below, arising from both the midrib and primary lateral veins. INFLORESCENCES to 6 per axil; peduncle 3.5--16 cm long, 3--6 mm diam., drying 2--4 mm diam., green, heavily red-striped; spathe 4.5--7 cm long, ((0.62)1.28--2.33 times longer than peduncle); spathe blade cream outside, purplish, with margins whitish inside; spathe tube purple outside, 2.5--3 cm long, 6--10 mm diam., purple inside; spadix sessile; clavate, 6 cm long; pistillate portion green, tapered toward the apex, 2.5 cm long, 6 mm diam. at apex, 7 mm diam. at middle, 8 mm wide at base; staminate portion 3.7 cm long; fertile staminate portion white, clavate, 7 mm diam. at base, 9 mm diam. at middle, 8 mm diam. ca. 1 cm from apex, broader than the pistillate or sterile portions; sterile staminate portion 7 mm diam.; pistils 1.6 mm long, 1.1 mm diam.; ovary 6(7)--locular, with sub-basal placentation; ovules 2 per locule, contained within translucent ovule sac, 0.2 mm long, equal in length to funicle, style similar to style type B; style apex concave; stigma discoid, unlobed, 0.6 mm diam., 0.1 mm high, covering interior faces of stylar funnel; the androecium truncate, 4--6-sided; thecae oblong to ellipical, 0.1--0.2 mm wide; sterile staminate flowers iregularily shaped, 2.1 mm long, 9 mm wide, the margins blunt. JUVENILE plants with internodes 5--6 cm long, 8 mm diam., dark green; petioles terete, sheathing to midway.


Premontane wet forest.


Endemic to Panama, known only from the Serranía de Pirre.

Distribution Map

  • Native distribution
Found in
  • Southern America Central America Panamá


  • 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 Croat, T.Bernard A revision of Philodendron subgenus Philodendron (Araceae) for Mexico and Central America Ann. Missouri Bot. Gard. 84, (1997).

 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
eMonocot. (2010, 1st November). Retrieved Wednesday, 8th February, 2012, from
  • B 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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