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- Chrpinka obecná (Crupina vulgaris) je jednoletá, půl až metr vysoká rostlina s fialovými, někdy až levandulově zbarvenými květy v chudých úborech. Je druhem malého rodu se dvěma či třemi druhy, které se od sebe morfologicky jen málo liší, nejvíce tvarem nažek a trichomů. Rod chrpinka se od chrpy liší drobnějšími úbory se šupinatými zákrovy, stavbou pylu a vysokým počtem chromozomů. Tato bylina, která je na některých územích považována za invazně se šířící plevel, se v české přírodě nevyskytuje. (cs)
- Crupina vulgaris es una planta de la familia de las asteráceas. (es)
- Crupina vulgaris is a species of flowering plant in the family Asteraceae. Its common names include common crupina, bearded-creeper, false saw-wort, and starry scabious. It is native to parts of Europe, Asia, and North Africa, and it is known elsewhere as an introduced species and often a noxious weed. This winter annual herb produces a slender stem reaching about 120 cm (4 feet) in height. The ridged stem has many branches, and is leafy below. The basal leaves are entire, toothed, or divided, and have rough-haired surfaces and bristly edges. They generally wither by flowering. Leaves higher on the stem are up to 3.5 centimeters long and are divided into narrow lobes with bristly edges. The slender flower head is about 1 or 2 centimeters long. It contains up to 5 florets, usually only one of which is fertile. It has a purple corolla. It yields one large fruit, a cypsela up to 1.6 centimeters long including its barrel-shaped body and its long, spreading pappus of brown or black bristles. It can weigh up to 36 milligrams. One average plant produces about 130 fruits. The flower heads often fall off the plant after the seeds ripen, each containing one fruit, or occasionally two in heads that produced two fertile florets. The seeds fall out and are dispersed by the wind or on the feet of livestock; they can be dispersed greater distances when floating on water or when transported by rodents, birds, or humans, including on machinery and in contaminated shipments of hay or grain. The seeds can pass unscathed through the guts of most animals, except sheep. The cotyledons of the seedling have a bright purple red, or purplish red midvein and margins. The plant can grow in a range of temperatures, moisture levels, and soil types, and in many types of habitat, including fields, pastures, grasslands, roadsides, railroads, and dump sites. It is not invasive in its native range, but in regions where it has naturalized, such as the rangelands of the western United States, it can negatively affect native flora through competition, reduce the quality of forage, and increase soil erosion. The plant can form wide stands in fields. It is unpalatable to most grazing animals, which avoid it and selectively consume other grasses and herbs, allowing the weed to survive and spread. Sheep and goats will consume the plant, but are not effective agents of eradication. A number of natural enemies have been recorded, such as the mite , which attacks the inflorescence, the moths Clytie illunaris, Metzneria aprilella, and Ornativalva plutelliformis, which feed on the seeds, and the weevil , which feeds on the leaves. , first described from the plant, is a pathogenic sac fungus that grows on its leaves. No agents of biological pest control have been established. (en)
- Crupina vulgaris oder der Gewöhnliche, Gemeine Schlu(ü)pfsame(n), ist eine Pflanzenart aus der Gattung in der Familie der Korbblütler (Asteraceae). (de)
- Crupina vulgaris é uma espécie de planta com flor pertencente à família Asteraceae. A autoridade científica da espécie é Cass., tendo sido publicada em Dictionnaire des Sciences Naturelles (Second edition) 12: 68. 1818. (pt)
- Крупина звичайна (Crupina vulgaris) — вид рослин з родини айстрових (Asteraceae), поширений у Північній Африці, Європі, Азії від Туреччини до північно-західного Китаю й північної Індії. (uk)
- 半毛菊（学名：Crupina vulgaris）是菊科的植物。分布在中亚地区、欧洲、俄罗斯以及中国大陆的新疆等地，生长于海拔1,100米的地区，目前尚未由人工引种栽培。 (zh)
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- Chrpinka obecná (Crupina vulgaris) je jednoletá, půl až metr vysoká rostlina s fialovými, někdy až levandulově zbarvenými květy v chudých úborech. Je druhem malého rodu se dvěma či třemi druhy, které se od sebe morfologicky jen málo liší, nejvíce tvarem nažek a trichomů. Rod chrpinka se od chrpy liší drobnějšími úbory se šupinatými zákrovy, stavbou pylu a vysokým počtem chromozomů. Tato bylina, která je na některých územích považována za invazně se šířící plevel, se v české přírodě nevyskytuje. (cs)
- Crupina vulgaris es una planta de la familia de las asteráceas. (es)
- Crupina vulgaris oder der Gewöhnliche, Gemeine Schlu(ü)pfsame(n), ist eine Pflanzenart aus der Gattung in der Familie der Korbblütler (Asteraceae). (de)
- Crupina vulgaris é uma espécie de planta com flor pertencente à família Asteraceae. A autoridade científica da espécie é Cass., tendo sido publicada em Dictionnaire des Sciences Naturelles (Second edition) 12: 68. 1818. (pt)
- Крупина звичайна (Crupina vulgaris) — вид рослин з родини айстрових (Asteraceae), поширений у Північній Африці, Європі, Азії від Туреччини до північно-західного Китаю й північної Індії. (uk)
- 半毛菊（学名：Crupina vulgaris）是菊科的植物。分布在中亚地区、欧洲、俄罗斯以及中国大陆的新疆等地，生长于海拔1,100米的地区，目前尚未由人工引种栽培。 (zh)
- Crupina vulgaris is a species of flowering plant in the family Asteraceae. Its common names include common crupina, bearded-creeper, false saw-wort, and starry scabious. It is native to parts of Europe, Asia, and North Africa, and it is known elsewhere as an introduced species and often a noxious weed. (en)
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