This spiny rattan palm Daemonorops didymophylla. (Family: Arecaceae) is rather common in the shady parts of our forest. I have seen some very tall ones before. Here is a picture of a cluster of fruits that I took recently.
The fruits are covered with a red encrusting resin which can be use as a traditional medicine as well as a dye according to Ivan Polunin's book on "Plants and Flowers of Singapore". There are quite a few other Daemonorops species that can be used for many purposes (see here). I was quite curious to find out how its flowers look like but was not able to find any.
I saw this Black Lily (Tecca integrifolia Family : Taccaceae) near a stream in our nature reserve. The leaves are large and its flower is grown at the end of a flowering stem which stands out quite prominently.
Without a good diversity of plant species, the survival of many animals will be threaten. We need to be observant to look at the plants around us, try to understand more about their habitats in order to safeguard their survival in our very delicate natural environment.