说到泡桐,人们并不陌生,这种春季紫花挂满枝头、清香沁人肺腑的玄参科乔木,在园林绿化上已颇具名气。然而和泡桐同科的马先蒿却鲜为一般人所知,在城市的公园和绿地中更难见到它们的踪迹。但如果你走出喧嚣的城市就会发现,在我们广阔的国土上,从西南到东北,不论是高原还是平川,是山林还是草场,都有马先蒿的倩影。马先蒿属(Pedicularis)是一个有着众多成员的庞大家族,全世界有600种以上,我国有300多种,尤以西南种类最多。它们虽然都是矮小的草本植物,花朵并不硕大,但却以多取胜,以奇惊人。每一株马先蒿上,往往有十几到几十朵花。它们的群体数量更 Speaking of Paulownia, people are no stranger to the spring purple flowers covered with branches, fragrant Qin Scrophularia trees, in the landscape has been quite famous. However, the common Artemisia annua with Paulownia is less commonly known, making it harder to see their traces in urban parks and green spaces. However, if you walk out of the bustle of the city, you will find that on our vast territory, from the southwest to the northeast, whether it is the plateau or Hirakawa, is the forest or grassland, there are the shadow of Artemisia mandshurica. Pedicularis is a large family with many members. There are over 600 species in the world and more than 300 species in our country, especially in Southwest China. Although they are all small herbs, the flowers are not huge, but they win more with surprising surprises. Artemisia annua each horse, often have dozen to dozens of flowers. Their population is more