Modern flat bean varieties picked while young are string less. Older varieties, and beans allowed to ripen on the vine, may contain tough strings.
Full Name: Beans (Flat)
Local Name: Shim
Flat beans, also known as helda beans, romano beans and “gavar fhali” in some Indian states, are a variety of Phaseolus vulgaris with edible pods that have a characteristic wide and flat shape.
Flat beans are normally cooked and served as the whole pods, the same way as green beans. Like many other types of bean (see broad bean for example) they can also be dehusked or shelled and the whitish seeds dried and stored, but there is no incentive to grow them for this purpose as higher-yielding bean varieties are available.