Classification de la Bibliothèque du CongrèsQK475.6

agriculture(337) animals(374) apples(362) art(947) bees(130) biology(3,532) botany(12,582) Britain(265) California(545) Canada(324) children(494) children's(603) conservation(143) cooking(356) desert(331) deserts(112) earth(162) Eastern United States(73) ecology(1,571) ecosystems(90) environment(795) Europe(213) evolution(248) fall(1,239) flowers(3,629) food(1,147) forest(230) garden(1,108) gardening(3,896) gardens(429) growing(341) growth(143) guide(903) guidebook(463) health(370) herbalism(414) history(1,053) horticulture(780) informational(556) leaves(1,025) life cycle(766) life science(411) medicine(313) natural science(215) natural world(95) nature(9,996) nature writing(121) North America(1,112) outdoors(309) photographs(173) photography(293) picture book(1,714) poison(110) prairie(103) reference(3,739) roots(87) science(9,658) science nonfiction(98) seed(214) self-sufficiency(105) Southwest(203) spring(723) sunflowers(85) survival(194) Texas(327) tree(369) trees(7,790) usa(548) wildlife(163)