Quebrachales
Cereus stenogonus © M. Peña Chocarro.
This unit is characterized by an upper layer of about 10-15 metres, with some trees reaching 18-25 metres.
The most important species are:
Quebracho blanco © M. Peña Chocarro.
- quebracho colorado (Schinopsis balansae)
- urunde’y (Astronium balansae)
- urunde’ymi (A. urundeuva)
- quebracho blanco (Aspidosperma quebracho-blanco)
- algarrobo (Prosopis spp.)
- tajy hû (Tabebuia heptaphylla)
- guayacán (Caesalpinia paraguariensis)
- palo piedra (Diplokeleba floribunda)
- espina de corona (Gleditsia amorphoides)
- palo lanza (Phyllostylon rhamnoides)
- guaimi piré (Ruprechtia triflora)
- tuna (Cereus stenogonus)
- guaraniná (Sideroxylon obtusifolium)
- sacha membrillo (Capparis tweediana)
- poroto guaikurú (C. retusa)
- sal de indio (Maytenus vitis-idaea)
- cangorosa (M. ilicifolia)
- mistol (Ziziphus mistol)
- mistol de zorro (Castela coccinea)
- palo tinta (Achatocarpus praecox)
- palo cruz (Tabebuia nodosa)
- molle (Schinus fasciculata)
- mbarakaja pyape (Fagara pterota)
The understory is composed by large populations of spiny bromeliads as Bromelia balansae and Aechmea distichantha.
Lianas and vines are not very common, but lichens and epiphytic bromeliads (Tillandsia spp.) and epiphytic cacti (Rhipsalis spp.) are common.