卉
觀
化石時期: 520-0 Ma 寒武紀至今 | ||||
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† 絲狀植物 |

卉者,草木也,屬真核生物之界。今員輿略計四十五萬種[一],至公元二〇〇四年,在錄者約二十九萬種。
凡草木,悉官品。與禽蟲、菌等並稱生類,其形幹構以幺,吸藏非官品以為養。深演者有柢、榦、葉之別,淺演者略如淺演禽蟲,莫能明分。種類繁殊。
- ↑ Pimm, Stuart L.; Joppa, Lucas N. How Many Plant Species are There, Where are They, and at What Rate are They Going Extinct?. Annals of the Missouri Botanical Garden. 2015-03-16, 100 (3): 170–176. ISSN 0026-6493. doi:10.3417/2012018 (英文).
