彗星俗称扫帚星,尽人皆知,这是因其形状像扫帚而得名,可知“彗”为扫帚之意。那么,“彗”字是什么意思呢?从字面也能揣测出,这是一种和扫帚有关的草。事实上,这种草的学名叫地肤草,古书称为王彗。地肤草是一种野生植物,细细的叶子蓬松散开,向上生长,等秋后叶子都落干净,剩下的骨架拔下来,就可以扎成一把扫地的大扫帚,所以民间又称 Comet commonly known as the broom star, well known, it is named because of its shape like a broom, we can see “comet ” for the broom meaning. So, what does “coma” mean? Literally it can be speculated that it is a broom-related grass. In fact, the scientific name of this grass is earthworm grass, the ancient book called Wang coma. Turtleweed is a wild plant, thin leaves fluffy spread, upward growth, so autumn leaves are clean, the rest of the skeleton unplug, you can tie into a sweeping big broom, so civil also known as