There are several species of the popular “sensitive plant” in the Petén area of Guatemala: Mimosa pigra and Mimosa pudica. The Mimosa species that grows along the edges of lakes and rivers is the most common. We found thousands of this plant along the shores of Lake Yaxha and especially along the seasonally inundates shores of Rio Ixtinto (southwest part of Laguna Yaxha, Parque Nacional Yaxha Nakum Naranjo). Sensitive plants are the popular plants that close their leaves when touched.
Mimosa at Parque Nacional Yaxha Nakum Naranjo, Peten, Guatemala
Mimosa along Arroyo Petexbatun, Sayaxche, Peten, Guatemala.
Mimosa along Rio San Pedro, Peten.
The Mimosa that likes waterlogged areas along rivers is found “by the millions” along Arroyo Petexbatun. This stream flows from the Laguna Petexbatun area to Sayaxché where it joins the Rio La Pasión. We were visiting friends at the hotel Posada Caribe and noticed kilometer after kilometer of this riverside Mimosa. It is called zarza by local Peteneros. Zarza is also the name for the other sensitive plant, Mimosa pudica L., so we will need to double-check. But so far we estimate the wetlands Mimosa is M. pigra. We are preparing a full report to list all Mimosa species potentially available in wetlands of Peten; you will also find these in seasonally flooded ecosystems around Peten: Chiapas, Tabasco, Campeche, Quintana Roo, Belize, Izabal and Alta Verapaz.
As a child my parents showed me equivalent sensitive plants, and often when visiting Petén people show me the fast-folding leaves of Mimosa pudica. Since we were in a boat and did not want to tip over, I avoided leaning over the side to test the sensitivity of the leaves. My interest is in ecosystems and biodiversity of plants of Guatemala, especially of the Mayan areas of Petén. The riverside Mimosa and another common plant Passiflora foetida are a giveaway for a seasonally flooded area. Most rivers and lakes in Petén rise several meters in water height during the rainy season, so any plants you see along the shore in October will often be totally underwater by November. In fact due to heavy rains the week before we were on the Arroyo Petexbatun, most of these Mimosa plants had their bases under water.
The maize (Zea mays L.) is the most essential and culturally important crop in Mesoamerica. It’s an annual, monoecious species (with female and male reproductive organs in the same plant but separated) and its pollination is through the wind. His domestication took place in Oaxaca, Mexico, about 9,000 years ago (UNAM, 2017).
For the Mayan culture, the maize is an important element in their lives. In the story of the creation of the universe, in the Popol Vuh, is said that the gods had several attempts creating men until they achieved their purpose by creating men with maize. In addition, in the Mayan culture, Yum Kax is the God of agriculture, who controlled this sacred food (Nájera, 2004).
Maize is an important part of the milpa. Commonly, the maizefield is confused with the milpa. The maizefields are the set of maize, while the milpa comprises an ecosystem, where diverse species of flora and fauna interact, provides environmental services (such as pollination, soil fertility and biological control), contributes to human nutrition and has a cultural connotation (Biodiversidad Mexicana,n.d.).
The milpa system is a historical result of the man-nature relationship, where there are different types of milpa that adapt to the conditions where they are, either at sea level or in the highest mountains; in humid or dry climates; in fertile or low fertile soils (USAID 2017).
Photograph with a Canon EOS-1Ds Mark III, lens 17mm f/0, ISO 400, f 16, speed 1/60.
The word milpa comes from the Nahuatl -milli- and -pan- which means "what is sown in the plot". This system is made up of 3 basic plant species, known as the three sisters:
Maize (Zea mays L.)
Bean (Phaseolus sp.)
Pumpkin or Güicoy (Cucurbita sp).
Although the milpa can be made up of up to 50 different types of species, including tomatoes, chili peppers, amaranth and fruit trees. (Biodiversidad Mexicana, n.d.).
Photograph took with a Canon EOS-1Ds Mark III,lens 17mm f/0,ISO 400, f 16, speed 1/800.
The three sisters form a synergy that favors performance and increases the resilience of the system. These three species provide benefits in various ways:
Beans are an atmospheric nitrogen fixing species, which provides nitrogen to the other species within the milpa.
Maize serves as a support for beans, since beans are a vine.
The pumpkin covers the ground and is responsible for maintaining moisture and limiting weed growth (Ebel & others, 2017).
Due to all its qualities, food, cultural and ecological, as an individual crop and as part of the milpa system, on August 13 commemorates Maize Day in Guatemala, in accordance with decree No. 13-2014 issued by the Congress of the Republic.
Photograph with a Canon EOS 5D,lens 24-105mm f/0,ISO 100, f 11,speed 0.6.
PDF, Articles, Books on Anthurium crassinervium (Jacq.) Schott
Several months ago, using aerial photographs, I noticed a probable savanna east of Nakum (Peten, Guatemala). With the assistance of our experienced team of local Peteneros and our capable team of FLAAR Mesoamerica, we hiked for kilometers, for hours, to reach this area. We thank the local guides, Teco and his associates, for getting us here.
To finally reach this savanna you climb a steep hill where there is a monumental geological fault, literally, the karst here is “split in two.” After you carefully walk around and then through and across the fault, you climb downhill (or slide downhill on the dry leaves since it is very steep).
Click to view the actual savanna without the trees blocking the view.
Then you reach a point where, all of a sudden, you see kilometer after kilometer of grassland in front of you, framed by the trees (because you are still on the hill). I was so amazed that the first two field trips here I cried with sheer surprise and happiness. Literally, tears flowed down my face.
I know of savannas from the 1970’s, Lake Peten to La Libertad and to Sayaxche. And around Poptun: lots of pine savanna everywhere. But having lived for 12 months at Tikal in 1965, I am more accustomed to hillside and hilltop forests. And from hiking, on foot, to El Mirador (leading tour groups), I know what a bajo is. But to see kilometers of savanna at the base of the forested hill in Parque National Yaxha Nakum Naranjo, wow, what a great reality check for biodiversity.
Then tonight (August 25), while doing research on plant habits (habits, not habitats) and on ecosystems, I came across a typical statement that “savannas are found in southern Mexico, Belize, Honduras, Nicaragua…etc.” Ouch, Guatemala is not listed. Yet even if these botanists and ecologists have never set foot in PNYNN, there are the better known savannas all across the middle of Peten.
Anyway, this is one of dozens of examples that there is a lot of flora and fauna in Parque Nacional Yaxha Nakum Naranjo which is missing from monographs and articles and reports. The park co-administrators: IDAEH and CONAP are facilitating our collaborative research on the plants and fauna: their assistance has allowed us to document that the savannas here in PNYNN are very different than in Belize and totally different than around Poptun, and south and west of Lake Peten Itza (and different than the pine savanna several kilometers northeast of the northeast corner of the Parque Nacional Tikal). In addition to trees, grasses (reeds and sedges). we are noting mosses, lichen, shrubs. A lot more to come.
Parque Nacional Yaxha Nakum Naranjo is well worth visiting to experience the remarkable flora and fauna.
About every two months (from August 2018 through July 2019) we visit the south shore of Lake Yaxha, the southern area of Parque Nacional Yaxha Nakum Naranjo. On each visit we noted lots of the common thin orange parasitic vine wandering around on the ground, searching for plants to visit and suck their life-system. This July, from the boat (kindly provided every month by the park administrators IDAEH and CONAP), I noticed a yellow glow about 10 meters inland from the shore. So I asked the lanchero to go towards the shore so I could step off and inspect the orange color. Turned out it was a series of savanna-like areas with the ground literally covered with this parasitic vine.
This pano was taken with an iPhone Xs. We will be preparing a full report with our dozen panoramas of this area by Dr Nicholas (Hellmuth) plus nice close-up macro photographs by Maria Alejandra Gutierrez.
Since there is a nearly identical vine on our family farm in Missouri (Cuscuta, dodder), and as I have seen the same vine in many areas of Alta Verapaz and above Lake Atitlan, Guatemala, I assumed the identical vine at Yaxha was also a species of the Genus Cuscuta.
There are several species of Cuscuta, in different ecosystems around the Americas. We have Cuscuta growing around bushes that stand out of the water in beaver-dam flooded areas on our family farm in the Missouri Ozarks. From a distance it looks identical to the Cuscuta from Guatemala (except here in Missouri it has adapted to snow and ice during the winter).
There is also lots of Cuscuta around Solola, en route to Lake Atitlan, Guatemala. Over the years we have found and photographed many locations with Cuscuta vines in different ecosystems of Alta Verapaz, Guatemala. I love the color and thin spaghetti diameter of the vine. The flowers are miniature and pretty. How this vine survives is great reading (just Google it).
But after I learned there is a literally identical parasitic vine named Cassytha filiformis, I spent several days doing research and was surprised to learn that only Cassytha filiformis is found in Belize and Campeche and Peten: not much Cuscuta species in any of these areas. So now I estimate that the thousands of vines at Yaxha are also Cassytha filiformis. As soon as we are back at Parque Nacional Yaxha Nakum Naranjo we will do macro photography and check the odor of the vine: Cuscuta evidently has no odor, but Cassytha filiformis has an easily detectable smell. We are working on a bibliography to show you where to find all this information.
Updated August 28, 2019 First posted July 23, 2019
If you are a professor of ecology, botany, zoology, entomology, you will find species at Yaxha that will showcase your capability as a scholar. This is because there are more different ecosystems in this one single park than in most other parks. During the field trips (one each month) we have found and photographed a diversity of ecosystems around Yaxha, Nakum, and Naranjo that will help totally rewrite all the 1960’s-1990’s research done elsewhere in Peten.
Photo by Dr Nicholas Hellmuth with an iPhone Xs. Panorama of Savanna of 3 Fern Species, discovered by the team in April 2019; revisited in June 2019. This area has unforeseen diversity: it is a bog, a swamp, a savanna of ferns, and a sibal (sawgrass ecosystem). Plus has the specific Acoelorraphe wrightii palmetto palm and Crescentia cujete trees of grass savanna definition of Peten and Belize (but no pine trees and no bushes with sandpaper leaves (Curatella americana, Chaparro). So the grass savannas of the Nakum area of the park are distinctly (and unexpectedly) different than the savannas of nearby Belize.
Photo by Dr Nicholas Hellmuth with an iPhone Xs. Panorama of the west shore area of Rio Ixtinto: will be inundated in a really wet year (photographed in June 2019, height of one of the driest years in recent history).
Photo by Dr Nicholas Hellmuth with an iPhone Xs. Panorama of the unexpectedly large Savanna East of Nakum, discovered several months ago at Aguada Maya, Poza Maya. Each of these ecosystems has a different micro ecosystem every 50 meters.
To our knowledge this project (FLAAR Mesoamerica cooperating with IDAEH and CONAP) is among the first to use the concept of panorama photos to document the ecosystem diversity. Our goal is to show the world what is available for you to experience when you visit Parque Nacional Yaxha Nakum Naranjo. Since the sawgrass and ferns are so high we bring ladders (endless kilometers hike) so we can use a several-meter high Gitzo tripod so our panorama system (iPhone Xs, Google Pixel 3XL, Nikon D810 or Canon EOS 1DX Mark II or our other cameras) can record the plant diversity in each of the micro ecosystems.
Since there is so much to see in this park it helps to stay several days. The Hotel Ecolodge El Sombrero is located next to the entrance. You do not need 4WD to reach the hotel nor the parking lot to entire the Yaxha ruins. Boats are readily available to cruise Lake Yaxha, the cenotes at the west end, and the Rio Ixtinto near the west side of Isla Topoxte.
To reach Nakum, try only in the dry season and only with high axel 4WD (or hiking by foot, with a guide). To reach Naranjo, an impressive area of acropolises, palaces, temples and pyramids, a high axel 4WD is essential (except during the driest month of the year, perhaps April).
Photograph with a Nikon D5, Nikon AF-S NIKKOR 600mm f/4e FL ED VR lens, f/11, ISO 200
The root is the lower part of a plant, they are almost always underground, although there are also aerial and aquatic roots. Roots are in charge of holding the plant to the ground, absorb water and minerals, synthesize hormones and store nutrients.
Roots are usually edible, some types of them are:
Napiform: root thickened by the storage of nutrients and shaped like a turnip.
Tuberous: root thickened by the storage of nutrients, without definite shape.
It is important to mention that napiform and tuberous roots are not the same as the bulbs and tubers, which are modified stems, not roots.
It’s a vine, up to 5 meters long, with green leaves and flared lilac and white flowers. It is distinguished by its edible roots, which can be purple, white or orange. It is located in different parts of Guatemala, like Alta Verapaz, Sacatepéquez, Izabal and Petén.
Photograph with a Nikon D5, Nikon AF-S NIKKOR 600mm f/4e FL ED VR lens, f/11, ISO 200
2. Jícama/Jicama (Pachyrhizus erosus (L.) Urb.)
Climbing plant, its flowers are blue, and its fruits are legumes. The root is very fleshy and shaped like a white turnip. They are located in the northern and eastern part of the country.
Photograph with a Nikon D5, Nikon AF-S NIKKOR 600mm f/4e FL ED VR lens, f/11, ISO 200
3. Malanga (Xanthosoma sagittifolium (L.) Schott)
Plant up to 1 meter high with grouped and very showy leaves. With white and purple flowers with a very sweet smell. Its roots are considered a substitute for potatoes and can be cooked sweet or salty. It is located in Alta Verapaz, Izabal, Chiquimula, Santa Rosa, Sacatepéquez, Retalhuleu and Quetzaltenango.
Photograph with a Nikon D5, Nikon AF-S NIKKOR 600mm f/4e FL ED VR lens, f/11, ISO 200
4. Ichintal (Sechium edule (Jacq.) Sw.)
Climbing plant with stems up to 10m long with green to white flowers. Its fruit is the güisquil, its tuberous root is the ichintal, which is solid and yellowish in color. It is grown in all its departments of Guatemala.
Photograph with a Nikon D5, Nikon AF-S NIKKOR 600mm f/4e FL ED VR lens, f/11, ISO 200
5. Yuca/Yucca (Manihot esculenta Crantz)
Shrub up to 3 meters tall with green and webbed leaves with small yellow, red or purple flowers. Its root is edible, however, it is necessary to cook it since it has toxic compounds when it is raw. In Guatemala, it’s found in warm areas.
Photograph with a Nikon D5, Nikon AF-S NIKKOR 600mm f/4e FL ED VR lens, f/11, ISO 200
Now that you know a little more about our native roots, let’s learn more about some of their nutritional benefits*
Root (100g)
Carbohydrates (g)
Fiber (g)
Fat (g)
Protein (g)
Camote/Sweet potato
17.72
2.50
0.14
1.37
Jícama/Jicama
8.82
4.90
0.09
0.72
Malanga
30.90
2.40
0.30
1.70
Ichintal
17.80
1.70
0.20
2.00
Yuca/Yucca
38.06
1.80
0.28
1.36
*Obtained from Tabla de Composición de Alimentos de Centroamérica (INCAP, 2007).
As you can see, the edible roots are rich in carbohydrates, which provide an immediate source of energy, storage of more energy and help the formation of other molecules such as proteins.
For more information, visit our website with bibliographies on native edible roots:
