能产生异味的花卉：松柏类、玉丁香、接骨木等。松柏类分泌脂类物质，放出较浓的松香油味，闻久了，会引起食欲下降，恶心。玉丁香散发出的异味能引发气喘使人烦闷。耗氧性花草：丁香、夜来香等。它们进行光合作用时，大量消耗氧气，影响人体健康。夜来香在夜间停止光合作用时? Can produce peculiar smell of flowers: pine and cypress, jade clove, elderberry and so on. Coniferous class secretion of lipids, release a thicker rosin flavor, smell a long time, can cause loss of appetite, nausea. The smell of jade lilac can cause asthma boredom. Oxygen-consuming flowers: cloves, evening primrose and so on. Their photosynthesis, a lot of oxygen consumption, affect human health. Night camel to stop photosynthesis at night?