Senegalia pennata (English: climbing wattle, Vietnamese: rau thối, Thai: ชะอม cha-om, Burmese: ဆူးပုပ်, pronounced [sʰúboʊʔ]; Khmer: ស្អំ; Meiteilon : khang, Thadou-Kuki: khang-khu, Paite Language: Khangkhuh, Mizo: Khanghu, Hmar: khanghmuk,Vaiphei: Khangkhu, Biate: khang-hu, Malay: petai duri or petai siam), is a species of plant which is native to South and Southeast Asia.

[1] In Northeast India, in the states of Mizoram and Manipur, climbing wattle is an ingredient in indigenous cuisine like kaang-hou (fried vegetables) and eromba.

Cha-om omelet pieces are one of the usual ingredients of nam phrik pla thu and commonly used in kaeng som, a sour Thai curry.

In Vietnam, the plant is cultivated in the Northwest region such as Sơn La and Lai Châu provinces, by the Thái and Khơ Mú ethnic groups as a delicacy vegetable.

The leaves have a distinctively stinky odor, and are used in salads (especially with mountain ebony flowers - Bauhinia variegata), as well as in stir-fries, grilled fish, pork or buffalo dishes.