We found 8 dictionaries that define the word greater knapweed:

General (7 matching dictionaries)

1. greater knapweed: Vocabulary.com
2. greater knapweed: Dictionary.com
3. Greater Knapweed: Wikipedia, the Free Encyclopedia
4. greater knapweed: Rhymezone
5. greater knapweed: FreeDictionary.org
6. greater knapweed: Mnemonic Dictionary
7. greater knapweed: TheFreeDictionary.com

Science (1 matching dictionary)

8. A Modern Herbal, 1931, by Mrs. M. Grieve (No longer online)

Definitions from WordNet (greater knapweed) ▸ noun:  tall European perennial having purple flower heads Opposite: lesser knapweed, common knapweed, brownray knapweed ▸ Words similar to greater knapweed ▸ Usage examples for greater knapweed ▸ Idioms related to greater knapweed ▸ Wikipedia articles (New!) ▸ Words that often appear near greater knapweed ▸ Rhymes of greater knapweed ▸ Invented words related to greater knapweed