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This species is accepted, and its native range is Costa Rica to NW. Colombia.

[CPLC]

Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá. http://catalogoplantasdecolombia.unal.edu.co

Distribution
Nativa en Colombia; Alt. 20 - 50 m.; Pacífico.
Morphology General Habit
Hierba
Conservation
No Evaluada

[CATE]

CATE Araceae, 17 Dec 2011. araceae.e-monocot.org

Distribution
Dieffenbachia davidsei ranges from northeastern Costa Rica to Panama (Darien Province) and Colombia (Choco).
Habitat
In Premontane wet fnorest (P-wf), Tropical wet forest (T-wf), and Premontane rain forest (P-rf) life zones (Hold- ridge, 1967). The species frequently occurs in mature forest along streams.
General Description
Slender herb, 30-100 cm tall; sap clear; internodes (1.0)1.5-5 cm long, 1.5-1.9 cm diam., weakly glossy to semiglossy, minutely roughened, usually with an even mixture of medium yellow-green and black-green streaks with no obvious back- ground color, sometimes medium yellow-green to- ward base with black-green streaks, reversing to dark black-green with yellow-green streaks toward the apex, drying obviously minutely wrinkled, striate and matte. LEAVES spreading-pendent to pen- dent; petioles 3-11.5 cm long (averaging 6.5 cm long), 5-6 mm diam., arched-spreading from stem, sheathed from 0.4 to 0.97 (averaging 0.73) the length of the petiole, paler than stem, white to yel- lowish green speckled, especially near the base, the base often white, tinged with pink and dark-striate; sheaths auriculate-prolonged at apex (often appearing ± acute on dried specimens), the margins in- rolled on both sides throughout their length, the opposite sides usually in contact and sometimes in part overlapping; unsheathed portion (1.5)2-5.5 cm long, subterete to D-shaped or broadly and obtusely sulcate, the margins moderately blunt; blades narrowly to broadly oblong-elliptic, 9-26.8 cm long, 2.3-9 cm wide (averaging 20.4 x 5.4 cm), broadest near the middle, (2)2.74.8 times longer than wide (averaging 36 times longer than wide), 1.9-6.2 times longer than petiole (averaging 3.1 times longer than petiole), slightly inequilateral, one side 3- 9 mm wider than the other, sometimes weakly falcate, thinly coriaceous, gradually to abruptly long-acuminate at apex (acumen down-turned and apiculate), acute to rounded or cordulate and nearly equilateral or markedly inequilateral at base (one side sometimes also ending lower on the midrib margins sometimes undulate; upper surface plain dark green in Costa Rica sometimes variegated with irregular light green blotches in Panama populations, glossy to semiglossy; lower surface slightly paler, matte to weakly glossy; drying dark brown to dark gray-brown above, yellow-brown to yellow- green below; rnidrib flat at base, becoming weakly convex toward the apex, concolorous or palerclbove, convex and paler than surface below, fre- quently pale-mottled; primary lateral veins (6)9 to 15 per side, flat to sunken7 weakly quilted above, raised and darker than surface below, drying usu- ally darker than surface below, sometimes paler than surface, usually departing midrib at 65°-90° angle throughout most of its length (rarely with the veins in the distal half of the blade arising at 30°- 50°), prominently curved toward the apex in the outer 1/3, those near the base to as much as 120° angle, sometimes forming a weak sigmoid curve, the primary lateral veins in the upper 2/3 to 1/2 some- times loop-connected for some distance, forming a weak collective vein 2-5 mm from margin, but this usually not extending all the way to the apex; interprimary veins almost as prominent as primary lateral veins, flat to sunken above, weakly raised and darker than surface below. INFLORESCENCES usually to 3 per axil, sometimes with more than one axil producing inflorescences; peduncles 1.5-4 em long, 4-5 mm, ovoid to D-shaped in cross section; spathe 8-16 cm long, 3.1-4.8 times longer than peduncle, coriaceous, semiglossy on both surfaces, medium to light green outside, slightly paler within; tube oblong to somewhat ekkipsoid, 6-7 cm long, oblong-lanceolate when opened, acute at apex (acumen apiculate for 2 mm); spadix (7.5)10-12.5 cm long, up to 1.7 cm shorter than the spathe; pistillate portion (4.0)5.5-6 cm long, (6)8-10 mm wide (the axis ca. 5 mm diam.). Almost contiguous with the staminate portion (a wide sterile intermediate section lacking); the pistilate flowers more widely spaced near the apex, 4-6 mm apart; pistils 20-35, ovary globuse, pale green; stigma bright yellow with long brushy papillae, 2-2.4 mm diam; staminodia white, usually broadly united at base and forming an often nearly complete bowl around the pistil, somewhat flattened throughout, barely thickened at the apex; synandria irregularly 4- to 6-lobed, drying 1.5-2.3 mm diam, deeply depressed with the margins turned up. INFRUCTESCENCES with spadix 5.5-7 cm long, berried orange, 8-11 mm diam, subglobuse, 2- to 3-seeded.
Phenology
Dieffenbachia davidsei flowers in the rainy season sometime after May (one plant seen with both flower buds and seemingly mature infrorescences in late October). Mature fruits have been seen during the dry season, in the late rainy season? and early dry season from November through April. Immature fruits have been seen in late April indicating that flowering may begin even earlier than May.

Native to:

Colombia, Costa Rica, Panamá

Dieffenbachia davidsei Croat & Grayum appears in other Kew resources:

First published in Ann. Missouri Bot. Gard. 91: 703 (2004)

Accepted by

  • Bernal, R., Gradstein, R.S. & Celis, M. (eds.) (2016). Catálogo de plantas y líquenes de Colombia 1-2: 1-3068. Libro impreso.
  • Govaerts, R.H.A. (2011). World checklist of selected plant families published update Facilitated by the Trustees of the Royal Botanic Gardens, Kew.

Literature

Catálogo de Plantas y Líquenes de Colombia

  • ColPlantA (2021). "ColPlantA. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; http://www.colplanta.org/"

CATE Araceae

  • Croat, T. 2004. Revision of Dieffenbachia (Araceae) of Mexico, Central America and the West Indies. Ann. Missouri Bot. Gard.. 91 (4): 668-772

Kew Backbone Distributions

  • Bernal, R., Gradstein, R.S. & Celis, M. (eds.) (2016). Catálogo de plantas y líquenes de Colombia 1-2: 1-3068. Libro impreso.

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, 17 Dec 2011.
http://creativecommons.org/licenses/by-nc-sa/3.0

Catálogo de Plantas y Líquenes de Colombia
http://creativecommons.org/licenses/by-nc-sa/3.0

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0