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  2. Onopordum acanthium - Wikipedia

    en.wikipedia.org/wiki/Onopordum_acanthium

    Separate cypselae. Onopordum acanthium (cotton thistle, Scotch (or Scottish) thistle) is a flowering plant in the family Asteraceae.It is native to Europe and Western Asia from the Iberian Peninsula east to Kazakhstan, and north to central Scandinavia, and widely naturalised elsewhere, [1] [2] [3] with especially large populations present in the United States and Australia.

  3. Cirsium palustre - Wikipedia

    en.wikipedia.org/wiki/Cirsium_palustre

    Cirsium palustre is a tall thistle which reaches up to 2 metres (7 ft) in height. The strong stems have few branches and are covered in small spines. In its first year the plant grows as a dense rosette, at first with narrow, entire leaves with spiny, dark purple edges; later, larger leaves are lobed.

  4. Thistle - Wikipedia

    en.wikipedia.org/wiki/Thistle

    Thistle is the common name of a group of flowering plants characterized by leaves with sharp prickles on the margins, mostly in the family Asteraceae. Prickles can also occur all over the plant – on the stem and on the flat parts of the leaves. These prickles protect the plant from herbivores.

  5. Cirsium vulgare - Wikipedia

    en.wikipedia.org/wiki/Cirsium_vulgare

    It was rated in the top 10 for most nectar production (nectar per unit cover per year) in a UK plants survey conducted by the AgriLand project which is supported by the UK Insect Pollinators Initiative. [10] Marsh thistle, Cirsium palustre, was ranked in first place while this thistle was ranked in sixth place. It also was a top producer of ...

  6. Goldfinches love to feed on this abundant thistle | Mystery Plant

    www.aol.com/goldfinches-love-feed-abundant...

    — Asa Gray, “How Plants Grow,” 1858 Thistles are a marvelous group of plants. Botanists place them all as members of the sunflower (or aster) family, which is a truly gargantuan group with ...

  7. Cardoon - Wikipedia

    en.wikipedia.org/wiki/Cardoon

    The wild cardoon is a stout herbaceous perennial plant growing 0.8 to 1.5 m (31 to 59 in) tall, with deeply lobed and heavily spined green to grey-green tomentose (hairy or downy) leaves up to 50 cm (20 in) long, with yellow spines up to 3.5 cm long.

  8. Cirsium horridulum - Wikipedia

    en.wikipedia.org/wiki/Cirsium_horridulum

    Thomas Nuttall (1786-1859) described var. megacanthum as "one of the most terribly armed plants in the genus." [8] [9] Cirsium horridulum is a biennial herb up to 250 centimetres (100 in) tall, with a large taproot and fleshy side roots that sometimes sprout new shoots. Leaves are up to 40 centimetres (16 in) long with thick, sharp spines along ...

  9. Cirsium eriophorum - Wikipedia

    en.wikipedia.org/wiki/Cirsium_eriophorum

    Cirsium eriophorum, the woolly thistle, [2] is a herbaceous biennial species of flowering plant in the genus Cirsium of the family Asteraceae. It is widespread across much of Europe. It is a large biennial plant with sharp spines on the tips of the leaves, and long