Among seed plants, those whose above-ground stems survive for many years and undergo secondary thickening growth by division of the cambium layer within the vascular bundles of the stem. It is the opposite of herbaceous plants and has been used for convenience. Compared to herbaceous plants, the xylem is more developed. It is common in gymnosperms and dicotyledonous plants, and the former in particular are all woody. They are broadly divided into trees and shrubs. Ferns such as the tree ferns and monocotyledonous plants such as palms have a woody appearance, but they do not undergo secondary thickening growth and do not develop true trunks. → Related topics: pitcher plant | gambir tree | ivy | cucumber mosaic virus | jellyfish | shrimp plant | covea | cordyline | bark | honeysuckle | vine | ivy | hawkweed | spring vine | field | bergamot | silver vine | yucca | cotton Source : Heibonsha Encyclopedia About MyPedia Information |
種子植物のうち,地上茎が多年にわたって生存しつづけ,茎の維管束内にある形成層の分裂によって二次肥大生長を行うもの。草本(そうほん)の対語で,便宜的に用いられてきた。草本に比べて木部の発達が著しい。裸子植物や双子葉植物に多く,特に前者はすべて木本性。高木と低木に大別される。ヘゴなどのシダ植物,ヤシなどの単子葉植物は木本の姿をとるが二次肥大生長は行わず,真生の樹幹は発達しない。 →関連項目ウツボカズラ|ガンビールノキ|キヅタ(木蔦)|キュウリモザイクウイルス|グミ|コエビソウ|コベア|コルジリネ|樹皮|スイカズラ|つる(蔓)植物|テイカカズラ|トビカズラ|畑|ベルガモット|マタタビ|ユッカ|ワタ(綿/棉) 出典 株式会社平凡社百科事典マイペディアについて 情報 |
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