首页> 外文期刊>Proceedings of the Arkansas Academy of Science >Plantain Sunflower (Helianthus occidentalis subsp. plantagineus) in Arkansas
【24h】

Plantain Sunflower (Helianthus occidentalis subsp. plantagineus) in Arkansas

机译:在阿肯色州的车前草向日葵(向日葵occidentalis subsp.plantagineus)

获取原文
获取原文并翻译 | 示例
           

摘要

Until our recent discoveries, Helianthus occidentalis Riddell subsp. plantagineus (Torr. & Gray) Heiser (Asteraceae) was known in Arkansas only from a single specimen (Palmer 23254, UARK) collected in 1923 from the banks of the Ouachita River in Garland County (Smith, 1988, 1994). On August 3, 1994, we serendipi-tously discovered a population (Site 1) during a plant survey in the Ouachita National Forest in Perry County. We made intensive searches for additional occurrences during the 1995 flowering period from early July until early September. On July 21 a second population (Site 2) was found about 0.7 km from our first stand, and on August 10 a third population was discovered on the Ouachita River in Montgomery County (Site 3).
机译:直到我们最近的发现,Helicantus occidentalis Riddell亚种。 plantagineus(Torr。&Gray)Heiser(Asteraceae)在阿肯色州仅从1923年从加兰县瓦希塔河河岸采集的单个标本(Palmer 23254,UARK)得知(Smith,1988,1994)。 1994年8月3日,我们在佩里县沃希托国家森林进行植物调查时偶然发现了一个种群(站点1)。我们对7月初至9月初的1995年开花期期间的其他事件进行了深入搜索。 7月21日,在距我们第一站约0.7公里处发现了第二个种群(站点2),而8月10日,在蒙哥马利县的瓦希托河上发现了第三种群(站点3)。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号