candlenut tree is one of the common planting trees, because it grows rapidly, it stands tall and straight with a dense canopy. it is resistant to strong wind and cold weather. what a great shade and ornamental tree.
it is however losing popularity as its trademark, the candlenuts can hurt people when they mature and fall down. there was also study saying that this tree along with some other plants contain too much iron oxide, which will cause human body to generate free radicals and spread bad cell.
but i just love this good old kind of tree. it produces beautiful leafs and multi-talented nuts. it is an enriching sensation seeing bundles of round big nuts hanging high.
九龍仔公園沿延文禮士道種有一列石栗 along inverness road at kowloon tsai park there grows a whole line of candlenut trees
some may know that candlenut is the state tree of hawaii. it is interesting to know that it is not native to hawaii (but malaysia and polynesia). here are more information about the tree from magical-hawaii.com:
in 1930, the official tree of the territory of hawaii, was the coconut palm, however in 1959, it was changed to the candlenut tree.
the tree has white flowers and round pods. the trees grow to a height of 15-25 meters. the leaves are pale green. the nuts, which have a very hard shell, are slightly poisonous when raw, and are flammable – like candles.
the ancient hawaiians used kukui nuts to make torches, which they used to light the night. these nuts have a very high oil concentration and burn for a long time. the hawaiians would put several on a stick and light the first one on fire, letting it burn down the line of nuts . this also became a way to tell time, or how much time has passed.
kukui nuts are traditionally used to make leis and the oil is used to make woods preservatives, varnishes and soap. the oil is also great for the skin. it can be used as a natural moisturizer. it soothes sunburns, and is beneficial for many skin problems.
石栗 candlenut tree (aleurites moluccana) – 植物界 plantae kingdom | 被子植物門 magnoliophyta division| 雙子葉植物綱 magnoliopsida |金虎尾目malpighiales order|大戟科euphorbiaceae family|石栗屬aleurites moluccana genus |石栗a. moluccana species
- 原產地： 馬來西亞，玻里尼西亞，麻六甲及菲律賓群島。
- 葉單生，互生，具長葉柄，卵狀三角形或卵狀長橢圓形，先端銳尖或漸尖，基部鈍或略為心形，紙質或厚紙質，全緣，不分裂或 3~5 裂；葉柄圓柱形，先端有二枚紅褐色腺體。花多數，白色，開放時徑 1~1.5 公分，呈頂生的圓錐花序；花序長 10~20 公分，有多數的分岐，同一花序上常雄花及雌花並存；花萼鐘形，小；花瓣 5 枚，長橢圓形或舌形，內面基部有毛茸；雄花中雄蕊 20 枚左右，排成 4 列；花藥向內；雌蕊的子房扁平卵形，二室，具有毛茸；花柱 2 枚，深 2 裂，分岐成尖錐狀。果實球形至卵形，略扁平，長 5~7 公分，寬 4.5~7 公分，先端鈍圓，有毛茸，內有種子 1~2 枚；種子堅硬，長 3~3.5 公分，灰褐色。《臺中市立后里國民中學》