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 coconut Bush coconut The Bush coconut, or bloodwood apple, is an Australian bush tucker food, often eaten by Aborigines of Central Australia. The bush coconut is, in fact, a combination of plant and animal: an adult female scale insect, "Cystococcus pomiformis", lives in a gall induced on a bloodwood eucalypt ("Corymbia terminalis"). The gall looks like a small, knobbly woody fruit, ranging in size from a golf ball to a tennis ball, with a milky white flesh inside upon which the insect and its male offspring feed. Bush coconut is called Merne arrkirlpangkwerle in the Arrernte language of Central Australia. Aborigines