The collective trichome cover of a plant surface is called pubescence . 植物表面聚集的毛状物称为柔毛。
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Much of the work on glandular hairs was done with the solanaceae . 许多关于有腺体柔毛的研究都是用茄科植物进行的。
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It is conceivable that pubescence forms a barrier, particularly for young nymphs . 可以想象，柔毛能形成一个阻障，特别是对幼小的若虫。
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In general, the purely mechanical effects of the pubescence depend on four main characteristics of the trichomes: density, erectness, length, and shape . 一般来说，柔毛的机械作用取决于毛状体的四个主要性状：密度、直立性、长度和形状。
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Capsules oblong , ca . 1 . 4 cm , pilose 蒴果长圆形，长约1 . 4厘米，被长柔毛。
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They ' re soft , like hair on the chest of a newborn chick 它们真柔软,就像刚出生的小鸡胸脯上的柔毛
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Stamens 4 , distinct ; pistillate ca . 1 cm , densely pilose 雄蕊4 ，离生；雌蕊长约1厘米，密被长柔毛。
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Black wattle extract 柔毛金合欢栲胶
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Fruit a syncarp , ca . 1 . 5 cm in diam . , orange , papillate and brown pubescent 聚合果球形，直径约1 . 5厘米，橙黄色，外被褐色短柔毛，表面有乳头状突起。
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Description : evergreen tree with milky juice ; young shoots and petioles covered with rusty short hairs 形态特徵：常绿乔木，有乳汁；嫩枝及叶柄被锈色短柔毛。
