| perennial rhinitis |
Year-round, rather than seasonal, rhinitis.
출처:
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| perennial |
A plant that lives for more than two years as a result of some form of vegetative reproductive structure. Spread and reproduction is both sexual (seed) and asexual (vegetative).
출처: www.invasiveweeds.com/glossary/welcome.html
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| perennial |
A plant living for more than a few years. Some perennials die back each year to a storage organ such as a bulb or corm (eg Calochortus, the sego lilies) while others retain green leaves year round. Trees and shrubs are technically woody perennials, but in general usage (and in the catalog pages), the term perennial is restricted to non-woody perennials.
출처: www.nazflora.org/Glossary.htm
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| perennial |
This is a plant that has a life span greater than two years. Normally this term is used for herbaceous plants used in the flower border.
출처: www.ottawa.ca/residents/healthy_lawns/lawns/links/...
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| perennial |
a plant that may live many years, growing each year from stored energy reserves in roots or woody structures.
출처: ohioline.osu.edu/b866/b866_16.html
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