| SCIENTIFIC NAME: | CYSTOPHORA SONCHI |
| VERNACULAR NAME: | SOW THISTLE GALL |
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| Fig 1 |
| DESCRIPTION | A striking gall that is quite unmistakable due to its host plant and the large raised pustule-like growths that are a rich burgundy red become paler towards the apex and somewhat greenish. Gall formations interrupt plant and leaf development. |
| DISTRIBUTION | Occasional. |
| HABITAT | On leaves of Perennial Sow Thistle. |