Eurasian perennial naturalized in eastern north america having very spiny white cottony foliage and nodding musky crimson flower heads ; valuable source of nectar .
北美东部已引入的欧亚多年生植物有多刺的白色棉花似的叶子和麝香味的深红色的头状花序;水果原汁。
Symptoms : mealy bugs appear as white , cottony masses in leaf axils , on the lower surfaces of leaves and on the roots .
症状:粉蚧,白色棉团状,出现在叶腋叶下部和根部。
Despite its remote habitat , however , the cottony white flower is disappearing .
不论它在遥远的生活环境,这种棉花白的花是消失了。
Perennial cottony white herb of southwestern united states .
美国西南部的一种被白棉毛的多年生草本植物.
Having densely tufted white cottony or downlike glumes .