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绮丽千里光的圖片
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绮丽千里光

Senecio elegans L.

Associations ( 英語 )

由BioImages, the virtual fieldguide, UK提供
In Great Britain and/or Ireland:
Foodplant / parasite
sporangium of Bremia lactucae parasitises live leaf of Senecio elegans
Other: unusual host/prey

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Comments ( 英語 )

由eFloras提供
Senecio elegans escapes from cultivation and persists along the central coast of California. Native to South Africa, it is now established widely in areas of Mediterranean climate.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
書目引用
Flora of North America Vol. 20: 545,567 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
來源
Flora of North America @ eFloras.org
編輯者
Flora of North America Editorial Committee
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Description ( 英語 )

由eFloras提供
Annuals, 20–40(–60) cm (tap­rooted). Herbage (somewhat sticky) hairy or unevenly glabrate. Stems single (often branching distally). Leaves evenly distributed; petiolate (petiole bases ± expanded); blades obovate (lyrate to pinnatifid, lobes linear to ± cruciate), 3–8 × 1.5–3.5 cm, bases contracted or tapered, ultimate margins ± dentate to crenate. Heads 8–20 in corymbiform arrays. Calyculi of 8–14 ± ovate bractlets (lengths to 1 / 2 phyllaries). Phyllaries ± 13+, 6–10 mm, tips black. Ray florets ± 13; corolla laminae (deep red to purple) 10–15 mm. Cypselae usually hairy. 2n = 20.
許可
cc-by-nc-sa-3.0
版權
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
書目引用
Flora of North America Vol. 20: 545,567 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
來源
Flora of North America @ eFloras.org
編輯者
Flora of North America Editorial Committee
專題
eFloras.org
原始內容
參訪來源
合作夥伴網站
eFloras

Senecio elegans ( 英語 )

由wikipedia EN提供

Senecio elegans flowerheads, Kirstenbosch National Botanical Garden, Cape Town, South Africa

Senecio elegans is a species of flowering plant in the aster family known by the common names redpurple ragwort,[1] purple groundsel,[2] wild cineraria and purple ragwort.

Description

It is an annual herb producing a single, erect, branching stem which grows to a maximum height around 60 centimeters. The leaves have blades up to about 8 centimeters long which are deeply cut or divided into several toothed lobes. The herbage is somewhat hairy and glandular, sticky to the touch. The inflorescence bears flower heads lined with black-tipped phyllaries. They contain many yellowish disc florets at the center. Each has usually 13 ray florets 1 to 1.5 centimeters long which can be most any shade of red-purple.

Distribution

It is native to southern Africa, and it is cultivated as an ornamental plant for its colorful flowers. It has been known to escape cultivation and become naturalized in areas of appropriate climate; it can be found growing wild in parts of New Zealand, Australia,[3] the Azores, and on the Central Coast of California. It favors a Mediterranean climate, often on the coast.

References

  1. ^ USDA, NRCS (n.d.). "Senecio elegans". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 9 November 2015.
  2. ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
  3. ^ "Purple Groundsel". Victorian Resources Online. Department of Primary Industries (Victoria). Retrieved 2 April 2012.

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wikipedia EN

Senecio elegans: Brief Summary ( 英語 )

由wikipedia EN提供
Senecio elegans flowerheads, Kirstenbosch National Botanical Garden, Cape Town, South Africa

Senecio elegans is a species of flowering plant in the aster family known by the common names redpurple ragwort, purple groundsel, wild cineraria and purple ragwort.

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cc-by-sa-3.0
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wikipedia EN