Dioscorea brachybotrya

Native. Good ornamental value. Height: 2,0 m. Shrub Climber. Flower: Yellow, 6 petals. 
HABITAT
In Chile this species grows in the following environmental conditions: Medium altitude up to the timber line. Low altitude, interior valleys.
 Watering conditions: Humid areas, with almost constant rainfall. Short dry periods are possible (generally not longer than 1 month). Somewhat dry areas where the drought may last 3 - 5 months. Precipitations of 400 - 800 mm. are concentrated in winter. Light conditions: Fully exposed to the sun. Level areas or slopes facing north. Some shadow. Some protection against direct sunlight, some shadow from vegetation, filtering about 20 - 40 % of light. The plant tolerates low temperatures (-15° C even -20° C), it can be covered by snow for months (1 - 8 months).