When time and funding permit, each flower (each plant species) will have its own page, and its own PDF, and eventually its own PPT so that professors and students have plenty of material on Guatemala (and Honduras, etc) to study.

Heliconia adflexa, Coban, Guatemala, Hotel Monja Blanca, FLAAR, by Nicholas Hellmuth

This space is for flowers
we have recently found and photographed.

Reports by FLAAR Mesoamerica
on Flora & Fauna of Parque Nacional Yaxha Nakum Naranjo
Peten, Guatemala, Central America

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Bibliography on Zygia genus trees of Guatemala

General information on Zygia genus

Zygia is a neotropical genus of about 40-45 species of trees or shrubs without brachyblasts, mostly with cauliflower spike-like inflorescences. its flowers are homomorphic with an intrastaminal disc surrounding the base of the ovary (López et al., 2015). The genus is  distributed from Central Mexico to Argentina. The genus is characterized by a single pair of pinnae and seeds with a papyraceous testa without a pleurogram. most species are locally found in inundated areas or along riverbanks (Rico-Arce, 1994). Of many of the Zygia species described so far, the fruits are not know, or they are known but in very immature states, and a few other species are known only in fruit and not in flower (Romero, 2017).


Zygia gigantifoliola, a remarkable example of cauliflory, a tree flowering from the trunk. cauliclorous flower on the tree trunk was photographed by FUNDAECO park ranger Lucas Cuz, in Reserva Natural Tapon Creek, Municipio de Livingston, Izabal, Dec 5th or 6th, 2020. If you are a botanist or student, we highly recommend doing research in the biodiverse habitats of this Caribbean part of Guatemala, Central America.


Zygia recordii, white flower, green pod.
Photo at Parque Nacional de Rio Dulce, with a Sony A1. November 13, 2021.

This tree has been identified before in the Reserva Natural Tapon Creek, Municipio de Livingston, Izabal, Guatemala, Central America and it was found by FUNDAECO park ranger, Lucas Cuz (see Bibliography on Zygia genus trees of Guatemala).

Here we present a bibliography on the Zygia genus for you to be able to identify it and learn more about its distribution and structure.














References Cited and Suggested Reading on Zygia genus

  • GUINET, Ph. and L. RICO-Arce
  • 1988
  • Pollen characters in the genera Zygia, Marmaroxylon and Cojoba (Leguminosae, Mimosoideae, Ingeae): a comparison with related genera. Pollen et Spores 30:313–328.
  • LÓPEZ-Contreras, José Enrique, RICO-Arce, María de Lourdes, CAN-Itza, Lilia Lorena and Rodrigo DUNO-De Stefano
  • 2015
  • El género Zygia P. Browne (Leguminosae, Mimosoideae, Ingeae) en la porción mexicana de la Península de Yucatán. Anales del Jardín Botánico de Madrid Vol. 72, No. 2.

    Free download:
  • RICO-Arce, María de Lourdes
  • 1991
  • New Species, Combinations and Synonyms for Zygia, Cojoba, Marmaroxylon and Pithecellobium (Leguminosae: Mimosoideae, Ingeae). Kew Bulletin Vol. 46, No. 3, pages 493-521.

    Available online:
  • RICO-Arce, María de Lourdes
  • 1994
  • Four New Species of Zygia (Leguminosae: Mimosoideae). Kew Bulletin Vol. 49, No. 3, pages 547-554

    Available online:


Suggested web pages
with photos and information on Zygia genus

Information on Z. conzattii, Z. latifolia var. latifolia, Z. stevensonii founded in Mexico and Central America

Zygia stevensonii, general information, photos and map distribution

Information on Zygia confused, recorded for Costa Rica, Guatemala and Belice

General information about Zygia genus, species list, map distribution and photos

This is the photograph and webpage that made it possible for Vivian Hurtado (FLAAR Mesoamerica) to identify the species. Victor Mendoza (FLAAR Mesoamerica) had earlier identified the genus.

Information on Z. cataractae, Z. latifolia, Z. morongii, Z. pithecolobioides

Information on Zygia englesingii



Updated February 14, 2022
First posted December 8, 2020
Bibliography prepared by Vivian Hurtado, FLAAR Mesoamerica


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