根茎的

Although the morphology were mainly controlled by genetic characteristics in Fagus sylvatica L.,ecological conditions could strongly influence their morphological and genetic diversity.

比如无性系植物可以在其根茎上产生无性系小株，这些无性系小株可以在其生境中不断扩展其面积和增加其枝体，构成许多新的营养位点来丰富这一系统[5～7]。

Rootstock short and thick, roots fibrous, fasciculate.

根茎短和厚，纤维状的根，簇生。

Roots fusiform or tubers, rootstock 1–3 cm.

根纺锤形的或块茎，根茎1-3 厘米。

Herblike shrubs, perennial, with vertical stem and creeping rhizomes.

草质灌木，多年生植物，带有垂直的茎和匍匐根茎。

Quillworts are heterosporous, mainly aquatic perennials, with a dense rosette of tubular quill-like leaves arising from a short, stout rootstock.

水韭目的植物具有异型孢子，是多年水生植物。其管状条形叶密集簇生于粗短的根茎之上。

Ligustrazine is a kind of the alkaloid monomer which is extracted from the rhizome of the umbelliferae Ligusticum wallichii. Chemistry structure is 2, 3, 5, 6- Tetramethylpyrazine.

川芎嗪是从伞形科植物川芎根茎中提取分离的生物碱单体，化学结构为2，3，5，6-四甲基吡嗪，目前已可人工合成。

The tuber or nutlike part of such a plant.

接球茎、根茎或块茎的植物。

This paper reports the studies on the shapes,properties and microstructures of Pennisetum flaccidum,Cynanchum stauntonii,easily confused with those of Rhizoma Imperatae Comparision was made for the identification of the confusing drugs.

文摘：对白茅根的混淆品白草、柳叶白前根茎进行了药材性状和显微组织构造研究，并与正品白茅根作了对照，供鉴别参考。

Phragmites communis,which is a typical clonal plant of grass family with rhizome,has a broad ecological adaptation.

芦苇是根茎型无性系禾本科植物，具有广泛的生态适应性。

Perennial plants having thick branching aromatic rhizomes and leafy reedlike stems.

多年生植物，枝条稠密，有芳香根茎和叶子繁茂的芦苇状茎。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。