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home / Plantae · augalai / Asteraceae · astriniai / Cirsium vulgare · dygioji usnis
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Cirsium vulgare · dygioji usnis
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Cirsium vulgare · dygioji usnis
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Cirsium vulgare · dygioji usnis
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Cirsium vulgare · dygioji usnis
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Cirsium vulgare · dygioji usnis
Cirsium vulgare · dygioji usnis
- spear thistle, bull thistle, common thistle
- Gewöhnliche Kratzdistel
- dygioji usnis
- asais dadzis
- ostrożeń lancetowaty
https://en.wikipedia.org/wiki/Cirsium_vulgare It is the national flower of Scotland. The plant provides a great deal of nectar for pollinators.
It is a tall biennial or short-lived monocarpic thistle, forming a rosette of leaves and a taproot up to 70 cm long in the first year, and a flowering stem 1–1.5 m tall in the second (rarely third or fourth) year. It can grow up to 1.8 m tall. It sometimes will function as an annual, flowering in the first year. Spear thistle is often a ruderal species, colonising bare disturbed ground, but also persists well on heavily grazed land as it is unpalatable to most grazing animals. Nitrogen-rich soils help increase its proliferation.
Natūraliai paplitusi Europoje, Azijoje, Šiaurės Afrikoje, kaip invazinė – Šiaurės Amerikoje. Tai dvimetis žolinis augalas. Aukštis iki 1,2-5 m. Stiebas status, vagotas, gausiai dygliuotas. Lapai dygliuoti, skiautėti, įdubę 15-25 cm ilgio. Žiedynas 2,5-5 cm skersmens, rausvas, dvinamis. Sėklos 5 mm ilgio, prikibusios prie skristuko. Dygioji usnis – įkyri piktžolė, auganti pievose, daržuose, pakelėse, tarp javų.