Petioles

leaves dimorphic, either floating with thick leathery blades and long petioles or submersed with thin, papery blades and short petioles;

叶二形，或者流动的具厚革质的叶片和长叶柄或沉水的具薄，纸质的叶片和短叶柄；

Mimosa pudica is an ideal model for studying cell response to force because it sensitively closes its leaflets and bends its petioles when subjected to the action of force.

由于受力后叶子立即发生运动，含羞草是一个研究力对于生物细胞作用的良好模型。

The variety is different from the typical one by having larger and thicker leaves with crenate or dentate margin, broadly winged petioles, broad-obovate or oblanceolate and serrate bracts, and lilac corollas with longitudinal yellow stripes in the throat.

该变种与原变种不同在于叶大而厚，边缘具圆齿或牙齿，叶柄具宽翅，苞片宽倒卵形或倒披针形，有锯齿，花冠淡紫色，喉部具黄色纵纹。

Soluble oxalate was the predominant form of oxalate of spinach, which in leaves, petioles and shoots occupied 36.7% 83.5%, 79.0% 93.3% and 50.0%~ 83.0% of total oxalate.

可溶态草酸是菠菜体内草酸的主要形态，在叶片、叶柄及地上部中所占草酸总量的比例分别在36.7%8~3.5%，79.0%9~3.3%以及50.0%8~3.0%之间。

to establish the technical system of rapid propagation, the young leaves, petioles, and stems with buds of anthurium andraeanum were cultured.

以安祖花的叶片、叶柄、带腋芽茎段为外植体进行组织培养，对其快速繁殖进行了研究。

branchlets glabrous or puberulent at base only; leaf petioles glabrous.

小枝无毛或者被微柔毛的仅在基部；叶柄无毛。

The present study shows the mechanical properties of homogenate suspension from the leaves and petioles of Mimosa pudica by stress-shear hysteresis loops during shear stress.

该文旨在通过观察含羞草叶片和叶柄匀浆悬浮液的应力切变率滞后环变化，揭示含羞草的力学性质。

branchlets and petioles velutinous, hairs ca. 3 mm. stipule filiform, ca. 5 mm;

天鹅绒似的小枝和叶柄，大约3毫米托叶丝状，约5毫米的头发；

young branches, annual branches, and petioles sparsely or densely grayish pubescent; pedicels sparsely puberulent.

浓密的幼枝，一年生枝和叶柄疏生或浅灰色的短柔毛；花梗疏生微柔毛。

Description: Scandent subshrubs , to 2 m tall , stems, petioles, and inflorescences thin pubescent, glabrescent.

形态特徵: 攀援灌木,长达2米, 茎 、 叶柄和花序疏被柔毛.

stems and petioles densely strigose; leaf blade herbaceous, apex cuspidate, 0. 5-1. 2 cm, abaxial surface densely canescent.

茎和叶柄密被糙伏毛；叶片草质，先端骤尖，0.5-1.2厘米，背面浓密被灰白毛。

Young shoots, petioles, abaxial surface of leaves, inflorescence, calyces and pods densely tomentose.

嫩枝 、 叶柄 、 叶背 、 花序 、 花萼和荚果密被毡毛.

Phyllodes are analogous to leaf blades, but are derived from petioles ( leaf stalks ) .

叶状柄与叶片是同功器官, 但它源于 叶柄.

Description: Herbaceous vines, glabrous except for pubescent on stem nodes, petioles, and leaf margin.

形态特徵: 纤细草质藤本,除茎节 、 柄和叶缘被短柔毛外全株无毛.

densely and minutely reddish puberulent on branchlets, petioles, abaxial leaf surface, and inflorescence rachis.

浓密和被微柔毛的带红色的微小的在小枝上，叶柄，叶背面，以及花序轴。

shrubs ca. 2 m tall, sparsely glandular papillose-puberulent on branchlets, petioles, and inflorescence rachis.

灌木约2米高，疏生腺体乳头状微柔毛在小枝，叶柄和花序轴上。

buds, petioles, young leaves, midvein adaxially and mature leaves puberulent.

芽，叶柄，幼叶，中脉正面和成熟叶子被微柔毛。

densely and minutely reddish puberulent on branchlets, petioles, abaxial leaf surface, and inflorescence rachis.

浓密和被微柔毛的带红色的微小的在小枝上，叶柄，叶背面，以及花序轴。

branches and petioles red when dry, nearly terete, strong, stout, striate or grooved, pilosulose or subglabrous.

分枝和叶柄干燥时红色的，近圆柱状，强壮的，坚固，或具凹槽，具小柔毛或近无毛。

The roots, petioles and seeds of Arctium lappa L . ( compositae ) are used to different symptoms.

牛蒡为菊科牛蒡属两年生植物,其根 、 茎叶和果实均可入药.

densely and minutely reddish puberulent on branchlets, petioles, abaxial leaf surface, and inflorescence rachis.

浓密和被微柔毛的带红色的微小的在小枝上，叶柄，叶背面，以及花序轴。

young branches, annual branches, and petioles sparsely or densely grayish pubescent; pedicels sparsely puberulent.

浓密的幼枝，一年生枝和叶柄疏生或浅灰色的短柔毛；花梗疏生微柔毛。

buds, petioles, young leaves, midvein adaxially and mature leaves puberulent.

芽，叶柄，幼叶，中脉正面和成熟叶子被微柔毛。

The results demonstrated that the content of IAA in leaves and petioles of bolting was apparently higher than unbolting plants which indicated the positive of high concentration IAA in blossom.

结果表明，已抽薹叶片和叶柄中IAA含量明显高于未抽薹材料，说明高浓度IAA可能促进植物开花。

young branches, annual branches, and petioles sparsely or densely grayish pubescent; pedicels sparsely puberulent.

浓密的幼枝，一年生枝和叶柄疏生或浅灰色的短柔毛；花梗疏生微柔毛。

young branches, annual branches, and petioles sparsely or densely grayish pubescent; pedicels sparsely puberulent.

浓密的幼枝，一年生枝和叶柄疏生或浅灰色的短柔毛；花梗疏生微柔毛。

stipules linear-subulate, ca. equal to petioles, puberulent, persistent;

钻形托叶线形，近等长于叶柄，被微柔毛，持久；

young shoots, petioles, and pedicels with dense yellow-ferruginous-dendroid branched long hairs.

幼枝，叶柄和花梗具紧密的黄铁锈色树枝状的分枝长毛。

leaves basal; stipules free or adnate to petioles only at base, brown, lanceolate, ca. 0. 5 mm, margin fimbriate, apex acuminate;

叶基生托叶离生或者贴生于叶柄只在基部，棕色，披针形，长约0.5毫米，流苏状边缘，先端渐尖；

leaves basal; stipules adnate to petioles only at base, free part lanceolate, margin fimbriate or erose;

叶基生托叶贴生于叶柄只在基部，披针形的离生部分，流苏状或者啮蚀状的边缘；