Rose comprises an outer fleshy layer, the hypanthium, which contains 5–160 "seeds" (technically dry single-seeded fruits called achenes) embedded in a matrix of fine, but stiff, hairs. Rose hips of some species, especially the dog rose ("Rosa canina") and rugosa rose ("Rosa rugosa"), are very rich in vitamin C, among the richest sources of any plant. The hips are eaten by fruit-eating birds such as thrushes and waxwings, which then disperse the seeds in their droppings. Some birds, particularly finches, also eat the seeds. While the sharp objects along a rose stem are commonly called "thorns", they are technically prickles—outgrowths of
Bush tomato is roasted before being eaten or dried. Fruit of "S.orbiculatum" is edible, but the fruit of the large leafed form may be bitter. Fruit of "S. phlomoides" appears to be edible after the removal of seeds and roasting or sundrying. "S. aviculare" contains solasodine, a steroid used in the manufacture of oral contraceptives. Bush tomato The term bush tomato refers to the fruit or entire plants of certain nightshade ("Solanum") species native to the more arid parts of Australia. While they are quite closely related to tomatoes ("Solanum lycopersicum"), they might be even closer relatives of the eggplant ("S. melongena"),