Arctotheca calendula is a plant in the sunflower family commonly known as capeweed,[2] plain treasureflower,[3] cape dandelion, or cape marigold because it occurs in the Western Cape Province in South Africa.[4][5] It has a wide distribution in coastal areas of South Africa, extending from Namaqualand to Cape Point and as far as KwaZulu-Natal.[6]
| Arctotheca calendula | |
|---|---|
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Arctotheca |
| Species: | A. calendula
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| Binomial name | |
| Arctotheca calendula | |
| Synonyms[1] | |
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Synonymy
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Description
editArctotheca calendula is a squat perennial or annual which grows in rosettes and sends out stolons and can spread across the ground quickly. The leaves are covered with white woolly hairs, especially on their undersides. The leaves are lobed or deeply toothed. Hairy stems bear daisy-like flowers with small yellow petals that sometimes have a green or purple tint surrounded by white or yellow ray petals extending further out from the flower centers.
Cultivation
editIt is cultivated as an attractive ornamental groundcover but has invasive potential when introduced to a new area. The plant can reproduce vegetatively or via seed. Seed-bearing plants are most likely to become weedy, taking hold most easily in bare or sparsely vegetated soil or disturbed areas.[7]
Spread
editArctotheca calendula is naturalized in California,[8][9] Spain,[10][11] Portugal, Italy,[12] Australia,[13][14] New Zealand,[15] and Chile,[16] and considered a noxious weed in some of those places.
References
edit- ^ The Plant List Arctotheca calendula (L.) Levyns
- ^ USDA, NRCS (n.d.). "Arctotheca calendula". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 8 January 2016.
- ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
- ^ Levyns, Margaret Rutherford Bryan 1942. Journal of South African Botany 8(4): 284
- ^ "Tropicos | Name - Arctotheca calendula (L.) Levyns". www.tropicos.org. Retrieved October 1, 2019.
- ^ "Arctotheca calendula | PlantZAfrica". pza.sanbi.org. Retrieved October 1, 2019.
- ^ "Arctotheca calendula in Flora of North America @ efloras.org". www.efloras.org. Retrieved October 1, 2019.
- ^ California Invasive Plant Council, University of California @ Davis
- ^ "Arctotheca calendula Calflora". www.calflora.org. Retrieved October 1, 2019.
- ^ Flora Vascular de Andalucía Occidental, Arctotheca calendula (L.) Levyns in Spanish
- ^ Flora Catalana, Arctotheca calendula in Catalan with color photos
- ^ Altervista Flora Italiana, Arctoteca simile alla calendola, Arctotheca calendula (L.) Levyns numerous photos
- ^ "Arctotheca calendula". Atlas of Living Australia. Retrieved October 1, 2019.
- ^ Weeds Australia, Capeweed Arctotheca calendula [dead link]
- ^ Flora of New Zealand Arctotheca calendula (L.) Levyns
- ^ ESPECIE INVASORA DE SUELOS ARENOSOS EN LA REGIÓN DE LA ARAUCANÍA (IX), CHILE Chloris chilense, Revista chilena de flora y vegetación. Arctotheca calendula in Spanish