叶片变得萎黄，茎短而纤细，并且在茎、叶柄和叶片下表面会出现花青素变色。
Leaves develop chlorosis; stems are short and slender, and anthocyanin discoloration occurs on stems, petioles, and lower leaf surfaces.
带有光亮叶柄的一种北美蕨类。
叶对生或互生，具叶柄，边缘全缘。
花茎和叶柄开展长柔毛和短柔毛。
Flowering stems and petioles spreading villous and pubescent.
黄色叶柄处具有窄小复叶的北美蕨类。
North American fern with narrow fronds on yellowish leafstalks.
解开扎绳，捏住粽叶柄环绕剥开即可。
Unravel the strand, pinch the leaf steam, and peel the circled leaf.
叶柄和萼片持续具绵状毛。
叶状柄与叶片是同功器官，但它源于叶柄。
Phyllodes are analogous to leaf blades, but are derived from petioles (leaf stalks).
叶片占植株地上部鲜质量的比例高于叶柄。
Leaf blade had more proportion than petiole in fresh weight.
叶柄的，与叶柄有关的，或长在叶柄上的。
乔木或灌木叶具叶柄，全缘的或有锯齿在边缘。
Trees or shrubs. Leaves petiolate, entire or serrate at margin.
用剪刀修剪叶柄。
毛重、球径、叶宽、叶柄宽与产量呈极显著正相关。
There were significant positive correlation between the round-leaf diameter, weight, stem width and production.
“红宝石无核”的叶柄不定芽再生率远远低于其叶片。
Rate of bud regeneration of'Ruby Seedless'was greater from leaves than petioles.
甘薯叶柄在中国的消费日趋增加，特别是在收获季节。
Itsconsumption in China is increasing, especially in the harvest season.
叶互生，具叶柄；叶片卵形到线形，边缘全缘或近全缘。
Leaves alternate, petiolate; leaf blade ovate to linear, margin entire or nearly so.
小白菜器官中硝酸盐含量表现为：叶柄（茎）﹥叶片﹥根。
The nitrate content of Chinese cabbage organ was: petiole (stem)> leaves> root.
叶互生，通常单叶，具叶柄；叶片边缘全缘或有时具圆齿。
Leaves alternate, usually simple, petiolate; leaf blade margin entire or sometimes crenate.
18世纪末期，芹菜经培育形成大而多汁的肉质直立叶柄。
The varieties with large, fleshy, succulent, upright leafstalks were developed in the late 18th century.
双子叶植物典型的营养叶由两个主要部分组成：叶片和叶柄。
A typical foliage leaf of a plant belonging to the dicotyledons is composed of two principal parts: blade and petiole.
由叶柄或叶基部生长出的变态的叶，为发育产生的外部结构。
Stipule A modified leaf found as an outgrowth from the petiole or leaf base.
形态特征：攀援灌木，长达2米，茎、叶柄和花序疏被柔毛。
Description: Scandent subshrubs, to 2 m tall, stems, petioles , and inflorescences thin pubescent, glabrescent.
对具绵状毛的至少沿脉被微柔毛的叶片和叶柄；花药球状的或肾形。
Leaf blade and petioles puberulent to woolly at least along veins; anthers globose or reniform.
每个维管束的韧皮部外面有数层厚壁细胞，增加叶柄的机械支持作用。
There are some sclerenchymatous cells outside the phloem of each vascular bundle to increase the supporting force of the petiole.
叶柄薄壁细胞存在晶体，叶柄的导管管径比较大，有大量的通气组织。
The crystals exist in parenchyma cells of its petioles. Its petioles have big vessels and much aerenchyma.
叶柄薄壁细胞存在晶体，叶柄的导管管径比较大，有大量的通气组织。
The crystals exist in parenchyma cells of its petioles. Its petioles have big vessels and much aerenchyma.
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