dcsimg

Associations

provided by BioImages, the virtual fieldguide, UK
Foodplant / internal feeder
larva of Paroxyna producta feeds within capitulum of Calendula arvensis
Remarks: Other: uncertain

In Great Britain and/or Ireland:
Foodplant / parasite
Podosphaera fusca parasitises live Calendula arvensis

Foodplant / feeds on
larva of Tephritis praecox feeds on Calendula arvensis
Other: sole host/prey

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Description

provided by eFloras
Leaf blades (1–)3–8(–10+) cm × 4–15(–20+) mm. Peduncles 3–5 cm. Phyllaries 13–21+, 6–10+ mm. Ray florets 13–18+; corolla laminae 5–8(–12+) mm. Disc florets 20–30+; corollas 2.5–4 mm. Cypselae 3–12(–25+) mm. 2n = 44 (18 and 36 have been reported).
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 19: 382 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of North America @ eFloras.org
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Flora of North America Editorial Committee
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Calendula bicolor

provided by wikipedia EN

Calendula arvensis

Calendula arvensis is a species of flowering plant in the daisy family known by the common name field marigold. It is native to central and southern Europe, and it is known across the globe as an introduced species.[3][4]

Calendula arvensis is an annual or biennial herb 10 to 50 cm (3.9 to 19.7 in) tall. The leaves are lance-shaped and borne on petioles from the slender, hairy stem. The inflorescence is a single flower head up to four centimeters wide with bright yellow to yellow-orange ray florets around a center of yellow disc florets. The fruit is an achene which can take any of three shapes, including ring-shaped, that facilitate different methods of dispersal.[5][6]

Achene

Calendula arvensis produce three types of achenes (fruits of the sunflower family), they are rostrate, cymbiform and annular. Rostrate and cymbiform are suitable for long-distance diffusion, because they have larger size and weight than annular, while annular is suitable for short-distance diffusion.[7]

References

  1. ^ Linnaeus, Carl (1763). Species plantarum (2 ed.). p. 1303.
  2. ^ "Calendula arvensis L." Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 23 March 2022.
  3. ^ Flora of North America, Calendula arvensis Linnaeus, Sp. Pl. Ed. 2,. 2: 1303. 1763.
  4. ^ Altervista Flora Italiana, Fiorrancio dei campi Calendula arvensis (Vaill.) L. includes photos and European distribution map
  5. ^ Ruiz de Clavijo, E. (2005). The reproductive strategies of the heterocarpic annual Calendula arvensis (Asteraceae). Acta Oecologica 28:2 119-26.
  6. ^ Messina, Nino (2010). "Calendula arvensis". Actaplantarum. Retrieved 21 January 2015.
  7. ^ Ruiz De Clavijo, E. (2005-09-01). "The reproductive strategies of the heterocarpic annual Calendula arvensis (Asteraceae)". Acta Oecologica. 28 (2): 119–126. doi:10.1016/j.actao.2005.03.004. ISSN 1146-609X.

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Calendula bicolor: Brief Summary

provided by wikipedia EN
Calendula arvensis

Calendula arvensis is a species of flowering plant in the daisy family known by the common name field marigold. It is native to central and southern Europe, and it is known across the globe as an introduced species.

Calendula arvensis is an annual or biennial herb 10 to 50 cm (3.9 to 19.7 in) tall. The leaves are lance-shaped and borne on petioles from the slender, hairy stem. The inflorescence is a single flower head up to four centimeters wide with bright yellow to yellow-orange ray florets around a center of yellow disc florets. The fruit is an achene which can take any of three shapes, including ring-shaped, that facilitate different methods of dispersal.

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Wikipedia authors and editors
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wikipedia EN