Nitrogen concentrations,C/N ratios and δ13C values of 71 alpine plants(perennials and annuals)grown at the east of Qinghai-Tibet Plateau in natural condition were measured.
结果表明:(1)多年生植物稳定碳同位素比值显著高于一生年植物,而碳/氮比率显著低于一年生植物(P<0。
History and progress of the genomics studies in the model system of perennial plant species;
多年生植物模式物种基因组研究的历史及进展
A perennial plant, such as the English daisy, cultivated as a biennial.
以两年生植物栽种的多年生植物，如英国雏菊
tufted perennial of western Europe and Azores having bright pink to white flowers.
簇生的多年生植物，花亮粉色至白色。
"all are grown as short-lived perennials, the planting lasting for about five years."
这些棉花全都是作为短期多年生植物种植的。植株大约生长5年。
perennial of mountainous areas of Eurasia and North America.
欧亚及北美高山地区的多年生植物。
perennial of eastern North America having pink-purple flowers.
北美东部多年生植物，有粉紫色的花。
deep-rooted perennial of southeastern United States.
美国东南的一种深根的多年生植物。
southeastern Asian perennial with aromatic roots.
东南亚多年生植物，根辛辣。
low perennial tufted plant of southeastern North America.
北美东南一种低矮的丛状多年生植物。
It's a perennial.
这是多年生草本植物。
perennial of the genus Phytolacca.
商陆属多年生草本植物。
annual or perennial herbs.
一年或多年生草本植物的一个属。
densely hairy perennial of central North America having edible tuberous roots.
北美中部多年生多毛植物，有食用块根。
evergreen perennial with large handsome basal leaves; grown primarily as a foliage houseplant.
多年生常绿植物，有巨大的基生叶；主要作为室内盆栽植物种植。
The main families are Compositae (7 species),Gramineae (6 species) and Leguminesae,among which,18 species are annual plant,9 species are perennial plant,and 2 species are woody plants.
全部植物中 ,1、2年生草本植物 18种 ,多年生草本植物 9种 ,木本植物 2种 .
perennial succulent herb with small solitary axillary or terminal flowers.
腋生或端生单花的多年生多汁草本植物。
Perennials like the azalea and forsythia bloom year after year.
多年生的植物如杜鹃、连翘一年接一年地开花。
annual, biennial or perennial herbs: buttercup; crowfoot.
一个一年二年或多年生草本属；毛莨；毛莨属植物。
cosmopolitan genus of annual and biennial and perennial herbs: cress.
一个一年两年和多年生世界性草本植物属；水芹。