One of the most interesting features of the slipper orchids which emphasizes their primitive look reflects in remaining of their two anthers. Also, another amazing development of these orchids is the structure of their sack-like lip equivalent to the shape of the slipper which in turn is useful for the purposeof their fertilization. There are altogether four genera of this slipper orchid. Howerver, in Thailand, only one genus with fourteen species have been discovered. Almost all species are terestrial and can be  easily found in the forests and in limestone cliffs.Only some species are found in Thailand.

Paphiopedilum parishii

            This rare species is usually found growing as epiphytes on mossy tree trunks in the montane forests of the Tennasserim range. Flowering is in the rainy season.

Paphiopedilum charlesworthii

            This rare species is found growing only in the montane forests at Doi Tung,Chiang Rai province. Flowering is in the rainy season.

Paphiopedilum callosum

            In the past, this species could be found in evergreen forests throughout the country. Now,it is scarcely found in the southern region. Flowering is in summer.

Paphiopedilum concolor

            This nice species is found growing on limestone in deciduous forests throughout the country,except in the south. Flowering is from summer through the rainy season.

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