幼苗在育苗袋中生长

to shows rows of young green seedlings growing in black plastic bags, arranged neatly on a wooden rack in a lush garden setting. The type of plant in the photo is Stevia (Stevia rebaudiana). Stevia is known as a natural sweetener because its leaves contain steviol glycosides, which provide a sweet taste without calories. It is often used as a sugar substitute. This plant is typically cultivated in shaded areas with good air circulation, similar to the setting shown in the image.