woolly mullein

Từ điển WordNet v3.1 - WordNet Dictionary

noun

tall-stalked very woolly mullein with densely packed yellow flowers;
ancient Greeks and Romans dipped the stalks in tallow for funeral torches
• Syn:
common mullein, great mullein, Aaron's rod, flannel mullein, torch, Verbascum thapsus
• Hypernyms:
mullein, flannel leaf, velvet plant