景观植物-苏铁-拉丁学名-Cycas revoluta Thunb.--紫天网|设计产业互联网站

描述

苏铁，（拉丁学名：Cycas revoluta Thunb.），俗称“铁树”，一说是因其木质密度大，入水即沉，沉重如铁而得名；另一说因其生长需要大量铁元素，故而名之。又名凤尾蕉、避火蕉、凤尾松，多种植在南方，现广泛分布于中国、日本、菲律宾和印度尼西亚等国家。苏铁最为出名的是其开花，被称之为“铁树开花”。
苏铁雌雄异株，花形各异，雄花长椭圆形，挺立于青绿的羽叶之中，黄褐色；雌花扁圆形，浅黄色，紧贴于茎顶。花期6-8月。种子卵圆形，微扁，熟时红色。其实苏铁是裸子植物，只有根，茎，叶和种子，没有花这一生殖器官，所以，苏铁的花，是它的种子。种子成熟期为10月份。
苏铁是地球上现存最古老的种子植物，是著名的“活化石”植物。它的起源可以追溯到大约3亿年前，在侏罗纪时代达到最盛期，曾与恐龙一起称霸整个地球。

形态特征
树干高约2米，稀达8米或更高，圆柱形如有明显螺旋状排列的菱形叶柄残痕。羽状叶从茎的顶部生出，下层的向下弯，上层的斜上伸展，整个羽状叶的轮廓呈倒卵状狭披针形，长75-200厘米，叶轴横切面四方状圆形，柄略成四角形，两侧有齿状刺，水平或略斜上伸展，刺长2-3毫米；羽状裂片达100对以上，条形，厚革质，坚硬，长9-18厘米，宽4-6毫米，向上斜展微成“V"字形，边缘显著地向下反卷，上部微渐窄，先端有刺状尖头，基部窄，两侧不对称，下侧下延生长，上面深绿色有光泽，中央微凹，凹槽内有稍隆起的中脉，下面浅绿色，中脉显著隆起，两侧有疏柔毛或无毛.。
雄球花圆柱形，长30-70厘米，径8-15厘米，有短梗，小孢子飞叶窄楔形，长3.5-6厘米，顶端宽平，其两角近圆形，宽1.7-2.5厘米，有急尖头，尖头长约5毫米，直立，下部渐窄，上面近于龙骨状，下面中肋及顶端密生黄褐色或灰黄色长绒毛，花药通常 3个聚生；大孢子叶长14-22厘米，密生淡黄色或淡灰黄色绒毛，上部的顶片卵形至长卵形，边缘羽状分裂，裂片12-18对，条状钻形，长2.5-6厘米，先端有刺状尖头，胚珠2-6枚，生于大孢子叶柄的两侧，有绒毛。种子红褐色或桔红色，倒卵圆形或卵圆形，稍扁，长2-4厘米，径1.5-3厘米，密生灰黄色短绒毛，后渐脱落，中种皮木质，两侧有两条棱脊，上端无棱脊或棱脊不显著，顶端有尖头。花期6-8月，种子10月成熟。

寓意
苏铁有着忠贞不屈的花语，其木质密度大，沉重似铁，而且苏铁的适应性较强，在贫瘠和干旱的土壤中可以正常生长，给人一种不畏艰难和苦难的感觉，可以将苏铁送给你敬仰的人，歌颂他坚韧不拔和自强不息的高尚品格。

如果需要植物采购可以联系，电话15889638076。也可以去客服官方淘宝店铺和微信公众号，随时欢迎家联系。真实植物购买、设计、养护联系客服。Dieffenbachia picta Lodd Also known as Dai fenye, it is an evergreen shrub like herb with thick and fleshy stems and a plant height of 1.5m. There are many horticultural varieties, and the patterns on the leaves of different varieties are different. Like warm, humid and semi cloudy environment. Not resistant to cold and drought. Conventional propagation is usually divided into plants and cuttings, but mainly cuttings. Native to South America. It is widely cultivated in tropical cities of Guangdong and Fujian in China. Young plants and small potted plants can be placed on the desk and windowsill for viewing. Medium sized potted plants can be placed in the corner of the living room and the edge of the sofa as decoration, making the room full of natural vitality. When it is used to place public places with low brightness, evergreen flowers and leaves still grow normally and green leaves.

The moral of evergreen flowers and leaves

"Evergreen flowers and leaves" is a warm and cheerful person. Because its leaves are bright and vigorous, it will give people a clear and lively feeling. It is suitable for giving it to their friends, colleagues or people who encounter setbacks. It represents the hope that the other party can face everything bravely. It can be placed indoors during maintenance.

2. Health and longevity: evergreen flowers and leaves is a kind of evergreen, which can be heard from its name. The leaves always remain emerald green and look vibrant, implying health and longevity. I hope people can always be healthy and free from disease. Evergreen flowers and leaves is very suitable for the elderly at home. I wish the elderly health and longevity, longevity, eternal health and youth.

3. Auspiciousness and wishfulness: Although evergreen is a foliage plant, it can also blossom. Its flowering is relatively rare, and the moral is also very good. It symbolizes that it can bring good luck. It can be placed at home and carefully maintained to promote flowering, which is a good omen.