European thistle with rather large heads and prickly leaves ; extensively naturalized as a weed in the united states 有很大的头状花序和多刺的叶子的欧洲蓟;在美国作为野草广泛引入。
In this thesis , the breeding system and reproductive strategies of the three species were observed and analysed 三种橐吾的花果期在6月中旬到10月初,花序为头状花序组成的总状排列。
This species was first discovered in a woodland behind the little hong kong ( now aberdeen ) in 1948 in hong kong 本种的假头状花序悬垂,形似吊钟花,但较大,故亦称为吊钟王,极具观赏价值。
The dried flower heads of either one of these plants , used to make an herbal tea and yielding an oil used in commercial flavorings and perfumery 黄春菊花序上述植物的任一种头状花序,用于做花茶且可产生一种商业上用来做调味品或香水的油