aubergine berry eggplant fruit garden garden egg grow growing guinea leaf leaves melongene plant pot seed seeds squash vegetable brinjal cultivars elongated oval-shaped food glossy guinea squash healthy nightshades nutritional oval-shaped perishable purple shapes smooth Solanaceae Solanum melongena spongy texture taste texture textures variations variety vegetarian elongated elongated-oval-shaped white aubergines guinea-squash Solanum-melongena spongy-texture striped appearance appearances color colour droplets drops moist moisture sprayed surface surfaces wet