Peperomia sirindhorniana is a species of flowering plant in the family Piperaceae. It is an annual plant with red stems and greenish-yellow inflorescences. The species is native to north-east Thailand, and was described in 2016.
Taxonomy The species was described in 2016, by Chalermpol Suwanphakdee and Pranom Chantaranothai.
Distribution Peperomia sirindhorniana is native to the wet tropical biome of north-eastern Thailand. It is found in the provinces of Loei and Khon Kaen.
It grows on limestone mountains, in shaded areas, at elevations of .
Description Peperomia sirindhorniana is an annual herb that grows high. The stems are red, and form a clump. The plant has fleshy stolons.
The leaves are arranged alernately, and grow on red, long stems. The leaves are light to dark green, fleshy when fresh, and ovate or heart-shaped. The leaves are long, wide, and has wavy edges with short hairs.
The inflorescence is a greenish-yellow spike or fascicle, measuring long, and wide. The inflorescence stem is red, and long. The flowers have an orbicular bract.
The fruit is wide, and covered with sticky protuberances. The plant flowers and fruits between August and December.
Peperomia sirindhorniana is similar to Peperomia pellucida.
Nomenclature The specific epithet refers to the Thai Royal Sirindhorn. Its common name is .
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