21. The plant is a climbing tuberous geophyte which grows in mountain forests. 22. Wait until the foliage dies to dig up tender bulbs or tuberous plants. 23. However, angiofibromas are more common in tuberous sclerosis. 24. The plant develops a very tuberous root system ( NRM, 2003 ). 25. Manuel G�mez was most interested in neurocutaneous syndromes, and especially tuberous sclerosis. 26. Young plants should be potted on before the tuberous roots become too intertwined. 27. They are vines producing branching stems with tendrils from a tuberous root system. 28. The leaves are pinnate and the plant is tuberous . 29. Several members of this genus are known to have edible, tuberous roots. 30. The tuberous roots are harvested and cooked for a long time before eating.