Cirsium species, commonly known as thistles, are remarkable for their rich array of secondary metabolites and their diverse pharmacological potentials. Central to their bioactivity are polyphenolic ...

This-le, noun, widely distributed herbaceous plant of the daisy family, typically has prickly stems and leaves and rounded heads of purple flowers. There are more than 62 varieties of native thistles ...

55.3 x 42.9 cm. (21.8 x 16.9 in.) ...

They’re everywhere! What are those tall spiny plants with small fuzzy purple flowers growing up the stem, or larger round fuzzy flower heads at the top of their stems? Thistles. The ones with small ...

Creeping thistle (Cirsium arvense) and spear thistle (Cirsium vulgare) are two of just five weeds labelled “injurious” under The Weeds Act 1959. Both are strong spreaders and competitors which invade ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. NMNH - Botany Dept.