1) Dead nettle 2) Lamium amplexicaule 3) Plant the fowl pecked 4) Purple-flowered weed 5) Weed of the mint family 
[horse] Henbit (28 March 1977 – 1997) was an American-bred and British-trained Thoroughbred racehorse, best known for winning the Epsom Derby in 1980. After winning one minor race as a two-year-old he showed improved form in 1980 to win the Classic Trial Stakes and the Chester Vase. He won the Derby in a fast time but sustained a leg inju...
• (n.) A weed of the genus Lamium (L. amplexicaule) with deeply crenate leaves.
Hen'bit` noun (Botany) A weed of the genus Lamium ( Latin amplexicaule ) with deeply crenate leaves. 
[n] - Eurasian plant having toothed leaves and small two-lipped white or purplish-red flowers