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Crotalaria similis, also known as the Pingtung Curara pea, belongs to the family Fabaceae and genus Crotalaria. It is a perennial crawling herb, an endemic species of Taiwan which the distribution is limited to the Eastern seaside of the Hengchun Peninsula.
Crotalaria similis is a rare species with the narrowest distribution amongst the endemic Crotalaria plants in Taiwan. Its distribution can only be found in the open grass along the east coast of Kenting below 100 above sea level. There are two larger distribution centers, one group situated in the Fengchuisha, Hengchun Peninsula, which takes up 50% of the entire population, and the other group at the grassland of Longpan, which takes up 30% of the total population. There are several types of habitats, including the calcareous red earth, sand, grasslands, and others. Amongst them, Crotalaria similis is mostly found in the grasslands, next is the sands and least being the calcareous red earth. Excessive human interference, such as afforestation, artificial planting, trample and other apparent ways resulting in the disappearance of the groups. However, limited interference, such as grazing benefit their survival.
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Text excerpted from the Wikipedia article Crotalaria similis by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
