Geonoma paradoxa

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Geonoma (geo-NO-mah)
paradoxa (pahr-ah-DOKS-ah)
Geonoma paradoxa00.jpg
Quinido Botanical Gardens, near Armenia, Colombia. Photo by Stephen Villiers, edric.
Scientific Classification
Genus: Geonoma (geo-NO-mah)
paradoxa (pahr-ah-DOKS-ah)
None set.
Native Continent
Habit: Solitary
Leaf type: undivided or irregularly pinnate.
Survivability index
Common names

Habitat and Distribution

Colombia, and Ecuador.
Quinido Botanical Gardens, near Armenia, Colombia. Photo by Stephen Villiers.
From 1°15-3°59'N and 76°58'-8°40'W on the Pacific coast of Colombia and Ecuador at 118(10-400) m elevation in lowland rainforest.


Palm 0.8 (0.7-1.0) m tall; stems 0.2 (0.1-0.3) cm tall, 1.3 (1.2-1.3) cm in diameter, solitary, not cane-like; internodes 0.4 (0.3-0.4) cm long, not scaly. Leaves 9 (6-12) per stem, undivided or irregularly pinnate, not plicate, bases of blades running diagonally into the rachis; sheaths 8.0 (3.5-13.0) cm long; petioles 38.5 (19.0-63.0) cm long, drying green or yellowish; rachis 36.7 (21.5-63.0) cm long, 3.5 (1.9-6.4) mm in diameter; veins raised and rectangular in cross-section adaxially; pinnae 1 (1-3) per side of rachis; basal pinna 37.5 cm long, 11.0 cm wide, forming an angle of 28 (19-40)° with the rachis; apical pinna 13.5 (11.5-17.2) cm long, 11.0 cm wide, forming an angle of 39 (29-50)° with the rachis. Inflorescences unbranched; prophylls and peduncular bracts ribbed with elongate, unbranched fibers, both bracts tubular, narrow, elongate, closely sheathing the peduncle, more or less persistent; prophylls 14.8 (13.6-15.7) cm long, not short and asymmetrically apiculate, the surfaces not ridged, without unequally wide ridges; peduncular bracts 8.8 (5.5-12.0) cm long, well-developed, inserted 1.5 (0.7-2.2) cm above the prophyll; peduncles 58.8 (27.5-100.0) cm long, 2.0 (1.3-3.7) mm in diameter; rachillae 1, 11.3 (7.8-16.0) cm long, 3.6 (2.7-4.6) mm in diameter, the surfaces without spiky, fibrous projections or ridges, drying brown or yellow-brown, without short, transverse ridges, not filiform and not narrowed between the flower pits; flower pits spirally arranged, glabrous internally; proximal lips with a central notch before anthesis, often the two sides of the notch overlapping, not recurved after anthesis, not hood-shaped; proximal and distal lips drying the same color as the rachillae, not joined to form a raised cupule, the proximal lip margins overlapping the distal lip margins; distal lips a scarcely raised rim; staminate and pistillate petals not emergent, not valvate throughout; staminate flowers deciduous after anthesis; stamens 6; these diverging or not diverging at anthesis, inserted onto poorly to well-developed, non-split, jointed connectives, connectives when well-developed alternately long and short; anthers short at anthesis, remaining straight and parallel; non-fertilized pistillate flowers deciduous after anthesis; staminodial tubes lobed at the apex, the lobes spreading at anthesis, acuminate, those of non-fertilized pistillate flowers not projecting and persistent after anthesis; fruits 9.4 (8.9-9.7) mm long, 5.6 (5.3-6.0) mm in diameter, the bases without a prominent stipe, the apices not conical, the surfaces not splitting at maturity, without fibers emerging, not bumpy, not apiculate; locular epidermis with operculum, smooth, without pores. (Henderson, A.J. 2011)/Palmweb. Editing by edric.


Cold Hardiness Zone: 11

Comments and Curiosities

External Links


Phonetic spelling of Latin names by edric.

Special thanks to Geoff Stein, (Palmbob) for his hundreds of photos.

Special thanks to, Dr. John Dransfield, Dr. Bill Baker & team, for their volumes of information and photos.

Glossary of Palm Terms; Based on the glossary in Dransfield, J., N.W. Uhl, C.B. Asmussen-Lange, W.J. Baker, M.M. Harley & C.E. Lewis. 2008. Genera Palmarum - Evolution and Classification of the Palms. Royal Botanic Gardens, Kew. All images copyright of the artists and photographers (see images for credits).

Henderson, A.J. 2011. A revision of Geonoma. Magnolia Press.

Many Special Thanks to Ed Vaile for his long hours of tireless editing and numerous contributions.

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