The Thai Post has issued a set of four stamps featuring orchids.
There are many interesting facts about these popular plants.
Orchids are differentiated not only by their flowers but also from the leaves and roots.
Grammatophyllum speciosum is the largest and Bulbophyllum globuliforme is the smallest orchid plant in the world.
Orchids are preferably grown on slopes to let the excess amount of water to flow off. This provides the orchids with the favourable conditions to grow in. Instead of just by hybriding using the advanced technology, orchids can be resulted from the pollination by bees or butterflies too. Some orchid hybrids are extremely beautiful, while there are also many species with flowers which are unusual, bizarre or downright ugly.
The vanilla flavouring comes from the pods of a leafy climbing orchid named Vanilla Planifolia
Though orchids sometimes grow on trees/other plants, they are not parasites. They only use the trees for support. They do not take nutrients from them.
Orchids are found on every continent except Antarctica and found in almost every color except black.
Orchid leaves are thick and fleshy, giving them the impression that they can withstand drought well like cacti.