DIOSCOREA MEXICANA
Origen: desde México hasta Panamá.
En México se la conoce como "cabeza de negro".
Como su pariente Dioscorea elephantipes es una trepadora de hoja caduca que desarrolla un tallo tuberoso engrosado que crece muy lentamente hasta alcanzar un tamaño de hasta 90 cm de diámetro y 25 cm de altura y que adopta con el tiempo la forma de placas endurecidas, como corteza de corcho o como el caparazón de una tortuga. Las ramas trepadoras pueden alcanzar una longitud de hasta 6 metros.
Crece principalmente en invierno, con un periodo de reposo en verano.
En la naturaleza el cáudex suele estar cubierto por vegetación y solo los tallos trepadores se exponen al sol directo, por lo que el cáudex es sensible a exposiciones continuadas al sol fuerte.
Necesita un sustrato que drene muy bien y agua sólo en la temporada de crecimiento. Durante el periodo de reposo se debe conservar en lugar seco y sombrío.
Al parecer soporta heladas débiles y cortas si el sustrato está bien seco.
English version:
Origin: from Mexico to Panama.
Common name:
Like its relative Dioscorea elephantipes it´s a deciduous climber. It develops a large, partially buried, tuberous stem, which grows very slowly reaching a thickness of 90 cm with a height of 25 cm above ground. It´s covered on the outside with thick, hard, corky plates. The vines can reach six metres in height.
It´s primarily a winter grower, developing slender, climbing shoots in winter, losing its leaves in the summer when it goes through a dry dormancy period.
In nature, the caudex is usually in shade beneath thicket vegetation, and only the leafy tendrils reach up to the sunlight. Therefore the caudex is sensitive to prolonged exposure to heat and full sunlight, and a dappled-sun or semi-shaded position is preferable.
It requires extremely well-drained soil,only needs water in its growing period. In dormancy very little water is required.
It withstands light and short frosts if soil is completely dry.
Like its relative Dioscorea elephantipes it´s a deciduous climber. It develops a large, partially buried, tuberous stem, which grows very slowly reaching a thickness of 90 cm with a height of 25 cm above ground. It´s covered on the outside with thick, hard, corky plates. The vines can reach six metres in height.
It´s primarily a winter grower, developing slender, climbing shoots in winter, losing its leaves in the summer when it goes through a dry dormancy period.
In nature, the caudex is usually in shade beneath thicket vegetation, and only the leafy tendrils reach up to the sunlight. Therefore the caudex is sensitive to prolonged exposure to heat and full sunlight, and a dappled-sun or semi-shaded position is preferable.
It requires extremely well-drained soil,only needs water in its growing period. In dormancy very little water is required.
It withstands light and short frosts if soil is completely dry.
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