Persicaria odorata Persicaria odorata Persicaria odorata, known as rau răm or Vietnamese coriander, is an herb whose leaves are used in Southeast Asian cooking. Other names for this herb include Vietnamese mint, Vietnamese cilantro, Cambodian mint, hot mint, laksa leaf, and praew leaf. Vietnamese coriander is not related to the mints, nor is it in the mint family Lamiaceae, but its general appearance and fragrance are reminiscent of them. "Persicaria" is in the family Polygonaceae, collectively known as "smartweeds" or "pinkweeds". Above all, the leaf is identified with Vietnamese cuisine, where it is commonly eaten fresh in salads (including chicken salad) and
Leaf spring kukris, and other tools. They are also commonly used by amateur and hobbyist blacksmiths. Leaf springs have also replaced traditional coil springs in some trampolines (known as soft-edge trampolines), which improves safety for users and reduces risk of concussion. The leaf springs are spaced around the frame as 'legs' that branch from the base frame to suspend the jumping mat, providing flexibility and resilience. The "diaphragm" common in automotive clutches is a type of leaf spring. Leaf spring A leaf spring is a simple form of spring commonly used for the suspension in wheeled vehicles. Originally called a "laminated" or