There is a long stream not far away from my house, both sides of the stream banks are the pathway for pedestrians for jogging or cycling. In Autumn, the foxtails and common reeds can be seen along the stream, the scenery is beautiful, especially when the wind is blowing...
离我家不远处，有一条很长的小川，川岸两旁是供行人徒步和騎自行车的好去处。 秋天，川岸两旁长满了狗尾草和芦苇， 景色优美，尤其是当微风吹的时候。。婀娜多姿！
Setaria viridis is a species of grass known by many common names, including green foxtail and green bristlegrass.It is a hardy grass which grows in many types of urban, cultivated, and disturbed habitat, including vacant lots, sidewalks, railroads, lawns, and at the margins of fields. It is the wild antecedent of the crop foxtail millet.
This is an annual grass with decumbent or erect stems growing up to a meter long, and known to reach two meters or more at times. The leaf blades are up to 40 centimeters long and 2.5 wide and glabrous
狗尾草的种子适生性强，耐旱耐贫瘠，在酸性或碱性土壤均可生长，常见于农田、路边、荒地。全球分布广泛，中国各地均有分布，为常见主要杂草。麦类、稻类、玉米、旱作物易受其侵害，与作物争夺肥力能力强，造成作物减产。
Phragmites, the Common reed, is a large perennial grass found in wetlands throughout temperate and tropical regions of the world.
It can grow in damp ground, in standing water up to 1 metre (3 ft 3 in) or so deep, or even as a floating mat. The erect stems grow to 2–6 metres (6 ft 7 in–19 ft 8 in) tall, with the tallest plants growing in areas with hot summers and fertile growing conditions.
The leaves are long for a grass, 20–50 centimetres (7.9–20 in) and 2–3 centimetres (0.79–1.2 in) broad. The flowers are produced in late summer in a dense, dark purple panicle, about 20–50 cm long. Later the numerous long, narrow, sharp pointed spikelets appear greyer due to the growth of long, silky hairs.
Reed is used in many areas for thatching roofs. It can also be used for making baskets, mats, pen tips, etc.
（ sources: wikipedia)
芦苇（学名：Phragmites australis）是生长于沼泽、河沿、海滩等湿地的一种植物，遍布于全世界温带和热带地区，芦苇属的植物大约有10种，有的分类学家认为芦苇是芦苇属的唯一种类。
多年生草本植物，地下有匍匐的根茎，可以在适合的地区迅速地铺展繁殖，一年可以平铺延伸5米以上，地上茎高达2-6米，丛生，叶长达20-50厘米，排列成两行，圆锥花序，花穗长10-40厘米，每个小穗有4-7朵小花，屬风媒花。美洲亚种植株比较矮小。
芦苇是保护湿地环境和野生动物的重要物种，许多种鸟类栖息在芦苇丛中。
芦苇杆含有纤维素，可以用来造纸和人造纤维。中国从古代就用芦苇编制“苇席”铺炕、盖房或搭建临时建筑。古代各国都有用芦苇的空茎制造的乐器——芦笛，芦苇茎内的薄膜做笛子的笛膜使用。芦苇穗可以作扫帚，花絮可以充填枕头。芦苇的根是一种中药——芦根，性寒，味甘，功能是清胃火、除肺热，主治热病烦渴、胃热呕吐、肺痈等症。
在古代，各国人民都已经熟悉芦苇，有许多关于芦苇的故事和传说。法国拉·封丹寓言曾经讲合力抗击风的芦苇群比大树更坚强，比喻弱小的群体比强大的个体要更能抵抗外来侵袭。中国古代故事《芦花记》讲后妈虐待前子，用芦花为他做棉衣，虽厚软但不暖和。
(质料来源 ： 百科全书）
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