Browse photos by Sue Winterowd:
Carduus
Centaurea
Chondrilla
Chondrilla juncea – 1 photo
Cirsium
Conyza
Conyza canadensis – 2 photos
Hieracium
Hieracium scouleri – 3 photos
Jacobaea
Jacobaea vulgaris – 2 photos
Matricaria
Onopordum
Onopordum acanthium – 5 photos
Rhaponticum
Rhaponticum repens – 3 photos
Tanacetum
Tanacetum balsamita – 5 photos
Tanacetum vulgare – 2 photos