There are an estimated 285,000 species of flowering plants on Earth compared to 148,000 for all other plants. Flowering plants are very important because they provide food for herbivores - plant-eating animals - and for humans. ** Leaves of the Sumatra breadfruit tree are notched when they first form, yet have no indentations when the leaves mature. ** The Sitka spruce is Britain's most commonly planted tree. ****** HAVE A GREAT DAY, AND REMEMBER, DAILY JOKES ARE ON MY PAGE, STOP BY FOR A SMILE.