王莲 简介?
王莲(Victoria regia)为睡莲科王莲属植物的统称,属睡莲科多年生或一年生大型浮叶草本。有直立的根状短茎和发达的不定须根,白色。王莲包括原生种亚马逊王莲(Victoria amazonica)、克鲁兹王莲(Victoria cruziana)和两者杂交而成、叶片最大的长木王莲(Longwood)。
荷兰一植物园里的王莲托起熟睡婴儿
王莲是水生有花植物中叶片最大的植物,其初生叶呈针状,长到2~3片叶呈矛状,至4~5片叶时呈戟形,长出6~10片叶时呈椭圆形至圆形,到11片叶后叶缘上翘呈盘状,叶缘直立,叶片圆形,像圆盘浮在水面,直径可达2米以上,叶面光滑,绿色略带微红,有皱褶,背面紫红色,叶柄绿色,长2~4m,叶子背面和叶柄有许多坚硬的剌,叶脉为放射网状。每叶片可承重数十公斤,二,三十公斤重的小孩坐在上面也不会沉没(如图,2008年7月6日,在荷兰乌得勒支的莱登大学植物园,一个熟睡的婴儿被放在王莲的叶子上)。
王莲的花很大,单生,直径25厘米~40厘米,有4片绿褐色的萼片,呈卵状三角形,外面全部长有刺;花瓣数目很多,呈倒卵形,长10~22厘米,雄蕊多数,花丝扁平,长8~10毫米;子房下部长着密密麻麻的粗刺。王莲的花期为夏或秋季,傍晚伸出水面开放,甚芳香,第一天白色,有白兰花香气,次日逐渐闭合,傍晚再次开放,花瓣变为淡红色至深红色,第3天闭合并沉入水中。
王莲9月前后结果,浆果呈球形,种子黑色。种子含丰富淀粉,可供食用
王莲50字简介
王莲属植物的通称,它拥有巨型奇特似盘的叶片,浮于水面,十分壮观,并以它那娇容多变的花色和浓厚的香味而闻名于世.王莲块状茎粗壮,具粗壮发达的侧根,质地软而脆,叶大而圆.上面绿色无刺,下面紫色,有突起的网状叶脉,脉上具2至3厘米长的锐制刺.
关于王莲的英语介绍
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Wang Lin tropical water lily known for the ornamental aquatic plants, aquatic plants with the world’s largest leaves, up to 3 meters in diameter, glossy, margins on volume, just like a float on a large emerald jade plate; their veins and the general structure of different plants, veins, into the rib-shaped, like an umbrella stand, it has great buoyancy, up to six 70 kg weight bearing objects instead of sinking, this amazing capacity to make other aquatic plants to compare it to no comparison, as a kid sitting on leaf surface, Wan Ru by a circular boat, leisurely tour zai, very interesting. Wang huge beautiful lotus, up to 30 centimeters in diameter, bigger than the lotus, has six 70 petals, were arranged in several circles within the sepals. Generally be open three days each flower about to open towards evening together, and change color over time, the first day of the evening, just above the water near the bud lovingly, milky white, to 19-20 when the gradually blooming and in half an hour to fully open, white jade flowers, fragrant, such as white orchids, often attracting beetles, very open in the septum between the stamens and stigma, flying, pollinating; day flowers on the close of the morning, wait until the evening, again in full bloom, the petals are from white into pink; wait until the third day of the flowers open, petal to further deepen the color, from pink into dark red, purple and finally wither, and sinking into the water knot and reproduce. Mature fruit, containing five 600 seeds, the size of Xingzhuang Si peas, rich in starch, edible, South America, people have called the “water of corn.”
王莲的叶为什么能载人
王莲的叶子为什么能载人? 答:王莲巨叶的背面有许多粗大的叶脉构成的骨架,骨架间有镰刀形的横隔相连,叶子里还有许多气室,使叶子能平衡地浮在水面上,叶面上能载30多公斤的物体. 参考资料:《十万个为什么》
王莲的叶子为什么可以载人
首先王莲的叶子特别大,有韧性,就跟船一样 王莲,为睡莲科热带著名水生庭园观赏植物,具有世界上水生植物中最大的叶片,直径可达3米以上,叶面光滑,叶缘上卷,犹如一只只浮在水面上的翠绿色大玉盘;因其叶脉与一般植物的叶脉结构不同,成肋条状,似伞架,所以具有很大的浮力,最多可承受六七十公斤重的物体而不下沉,这种惊人的承载力令其他水生植物望尘莫及,无法相比.如一个小孩坐在叶面上,婉如乘一只圆形的小船