Where did the sunflower come from? How does it grow so tall? How can its thin stalk support such a large and heavy "head?" These and many other questions are answered in this dazzling book. Using lushly detailed illustrations and photographs, the book takes us inside the sunflower to examine its stem, root system, leaves, and flowering heads, proving an understanding of this unique plant s structure, growth, flowering, reproduction, and cultivation.
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able ancestor Andrew anthers become bees begins Body buy sunflower called carried Changed collect Compositae corolla cultivated sunflower daisies dandelion disk flowers domesticated sunflower early edge entire Europe European example face feed fertilization field follow Free fruit full bloom garden germinates Goldfinches ground grown hairs hard harm head grow Head of Flowers head turns Helianthus annuus Helped Hipp human hybridize Illustrations insects inside instructions joined larvae later lay eggs Learn leaves Left live look Mice minerals Native Americans needed North America Once opens Opposite outer shell ovary ovule Pages parent petals photosynthesis plants Pollen presentation produce produce seeds ray flowers Rieseberg roots scale Scientists seedling root seen share single soil species spread stem stigma summer sunflower achenes sunflower head sunflower originated sunflower seed weevil tall thistle traveled tube wild sunflower Wisconsin yellow