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rare plant
释义
rare plant
Encyclopedia
农学
野生植物
释
rare plant
稀有植物
有广义和狭义之分。广义稀有植物指那些在经济、科学、文化和教育等方面具有重要意义而现存数量稀少的植物,又称珍贵稀有植物,如金花茶(Camellia petelotii)。狭义稀有植物指分布范围狭窄,数量极少,如普陀鹅耳枥(Carpinus putoensis,仅存一株),但在特定生存条件下种群的生存和繁衍相对稳定;或者虽有较大的分布范围,但只是零星分布的植物,如中国蕨(Aleuritopteris grevilleoides),金钱松(Pseudolarix amabilis)。通常使用其广义概念。
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strictly Egyptian number
strictly elliptic operator
strictly elliptic system
strictly equivalent ideal
strictly ergodic
strictly ergodic homeomorphic mapping
strictly expansive operator
strictly finer topology
strictly homogeneous coordinate
strictly hyperbolic equation
strictly hyperbolic system
strictly hypoelliptic
strictly increasing
strictly increasing function
strictly increasing homeomorphism
strictly increasing mapping
strictly increasing sequence
strictly isotone function
strictly local ring
strictly lower triangular matrix
strictly monotone
strictly monotone function
strictly monotone mapping
strictly monotone operator
strictly monotone sequence
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