I should’ve put a dollar bill behind the bunch to show scale; it is small and only about the length of a large adult hand (this photo is zoomed in to show the fronds of this fern-like herb). It’s common hereabouts, has a mildly bitter taste and a pungent sulfury aroma. I’ve seen it most commonly chopped off the stems and mixed into duck egg omelets. It’s one of my kids’ favorite fast foods. In English it’s called acacia leaf, and in Khmer it’s sa-om. It’s eaten with rice and some sweet chili sauce, or as part of an array of dishes that usually includes soups.
I wonder what else people use this herb in.