| 词条 | Asphodelus fistulosus |
| 释义 |
|taxon = Asphodelus fistulosus |image = Asphodelus fistulosus (flowers).jpg |authority = L. }} Asphodelus fistulosus is a species of plant known as hollow-stemmed asphodel,[1] onionweed,[2] onion-leafed asphodel, and pink asphodel. It is native to the Mediterranean region. It is an invasive exotic weed in the United States, with significant infestations in California, Arizona, New Mexico, and Texas. It is listed as a Federal Noxious Weed by the United States Department of Agriculture. It is also a common weed in parts of Australia, New Zealand, and Mexico, and it thrives in any area with a Mediterranean climate. It is an annual or short-lived perennial herb growing a hollow stem up to 70 centimeters tall. The root system has a series of tuber-like parts at the base of the stem. The plant takes the form of a large tuft of onion-like rounded hollow leaves up to 30 centimeters long. The inflorescence is a panicle with widely spaced flowers. Each flower is 5 to 12 millimeters wide with six tepals which are generally white or very pale pink with a neat central longitudinal stripe of brown to reddish-purple. The flowers are diurnal, closing at night and in overcast or low-light weather conditions. The fruit is a rounded capsule containing six seeds. References1. ^{{cite web|title=BSBI List 2007 |publisher=Botanical Society of Britain and Ireland |url=http://www.bsbi.org.uk/BSBIList2007.xls |format=xls |archive-url=https://www.webcitation.org/6VqJ46atN?url=http://www.bsbi.org.uk/BSBIList2007.xls |archive-date=2015-01-25 |accessdate=2014-10-17 |deadurl=yes |df= }} 2. ^{{PLANTS|id=ASFI2|taxon=Asphodelus fistulosus|accessdate=8 January 2016}} External links
2 : Asphodeloideae|Plants described in 1753 |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。