The bamboo has played an important role in East Asia, as part of spiritual life, as a building material, and indeed, as an aphrodisiac! (worldbamboo.net) It is the bamb(oo la la) manna, the sweet secretion inside the bamboo stem that is used in various medicines, which is said to stimulate arousal. (bimbima.com)
It can be both digested and used as a cooling lotion on the skin. The bamboo has a calming effect on the kidney, which is said to increase blood flow to the penis, making it easier to stay aroused, for longer. (Kidney.org) Interestingly, the manna's anti-inflammatory properties are also said to increase sex drive and whilst more research is needed to discern the precise nature of this relationship, it has been suggested that less inflammation means less sensitivity to disgust and more oxytocin: great ingredients for increased arousal. As well as this, people with less inflammation and thus a stronger immune system are seen as more attractive by others, making sex more likely. (indiatimes.com, Issm.info)
One way bamboo has been used to increase sexual arousal is in combination with the gecko. That’s correct, the toad-headed lizard has been used to assist with impotence in some parts of East Asia. First, the gecko is caught, then its internal organs are removed and the eyes cut out and drained. Pieces of bamboo are placed within the body, the gecko is then baked and ready to eat! (ncbi.nlm)
If you don't have a gecko close to hand, the bamboo manna can be bought as a lotion and its leaves can be ground into food. First, the bamboo must be boiled to remove any harmful bacterias. (worldbamboo.net)
The plant contains high levels of silica and is used in many ways in Ayurvedic medicine. The root is astringent and cooling. It is used to treat joint pain and general debility. The leaves are antispasmodic and emmenagogue. They are taken internally to stimulate menstruation and to help relieve period pain. They are also taken to tone and strengthen stomach function; to expel worms, and have the reputation of being an aphrodisiac. The young sprouts, harvested as they emerge from below soil level, are taken internally to relieve nausea, indigestion and wind. They are applied externally as a poultice to help drain infected wounds. The juice of the plant is rich in silica and is taken internally to aid in the strengthening of cartilage in conditions such as osteoarthritis and osteoporosis. Source: https://pfaf.org/
Find more about this plant on Wikipedia.