Description
provided by eFloras
Leaf blades 20–35(–50+) × 12–25(–30+) mm (including petioles). Peduncles 3–10(–20+) mm. Bracts ± linear at proximal nodes, wanting distally. Phyllaries 3–4 mm. Cypselae 1.5–2 mm; pappi white, outer scales 0.1–0.3 mm, inner bristles 3–4 mm. 2n = 36.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
provided by eFloras
Conyza cinerea Linnaeus, Sp. Pl. 2: 862. 1753; Vernonia cinerea (Linnaeus) Lessing
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Comprehensive Description
provided by North American Flora
Vernonia cinerea (L) Less. Linnaea 4: 291. 1829
Conyza cinerea L. Sp. PI. 862. 1753.
Cacalia cinerea Kuntze, Rev. Gen. 323. 1891.
Seneciodes cinereum Kuntze; Post & Kuntze, Lex. Gen. Phan. 515. 1904.
Stems herbaceous, erect, simple or freely branched, 1-8 dm. high, glabrate below, cinereous-pubescent above; leaf-blades thin, bright-green, spreading, variable in shape from narrowly elliptic or oblanceolate to broadly ovate or triangular, 2-5 cm. long, acute or obtuse, serrate, crenate, or entire, abruptly constricted at the base into a margined petiole, cinereous-pubescent beneath; inflorescence corymbose, 2-10 cm. wide; braeteal leaves subulate; heads about 13flowered; involucre campanulate, 3-4 mm. high; scales loosely and irregularly imbricate, thinly pubescent, the outer subulate, the inner linear-oblong, acuminate, purplish at the apex; achenes pubescent; pappus white, the inner series 5 mm. long, the outer minute.
Type locality: India.
Distribution: Tropics of the Old World; introduced throughout tropical America as far north as Mexico and southern Florida.
- bibliographic citation
- Per Axel, Rydberg. 1922. CARDUALES; AMBROSIACEAE, CARDUACEAE. North American flora. vol 33(1). New York Botanical Garden, New York, NY
Description
provided by Phytokeys (archived)
Annual herbs, 20–100 cm tall. Stems erect, conspicuously ribbed, sericeous. Leaves 3–5 by 2–3 cm, lanceolate or ovate to broadly ovate, margin undulate to serrate, apex acute to acuminate, base attenuate, chartaceous; upper surface sericeous without glands; lower surface sericeous with cylindrical hairs, T-shaped hairs and capitate glands, lateral veins 5–7-paired; petioles up to 2 cm long. Capitulescences terminal or axillary, paniculate. Capitula campanulate, 5–6 mm long, pedunculate. Receptacle flat, 2–2.5 mm in diam., glabrous. Involucres campanulate, in 3–4 series, 4–4.5 mm long, 2.5–3 mm in diam. Phyllaries imbricate, green with purple apex, margin piliferous, outer surface sericeous glandular; the outer and the middle ones lanceolate, apex acute to acuminate; the inner ones lanceolate to oblong, apex acuminate. Florets 25–30; corollas funnelform, purple or white, puberulous glandular; corolla tubes 3–3.5 mm long; corolla lobes ca. 1 mm long. Anthers ca. 0.6 mm long, apical appendage acute, base obtuse. Styles purple, ca. 3 mm long, branches ca. 0.5 mm long.Achenes clavate, 1.5–1.8 mm long, ribs inconspicuous, densely pubescent with twin hairs and capitate glands. Pappus in 2 series of bristles, the inner ones 3–3.5 mm long, persistent.
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- Sukhonthip Bunwong, Pranom Chantaranothai, Sterling C. Keeley
- bibliographic citation
- Bunwong S, Chantaranothai P, Keeley S (2014) Revisions and key to the Vernonieae (Compositae) of Thailand PhytoKeys 37: 25–101
- author
- Sukhonthip Bunwong
- author
- Pranom Chantaranothai
- author
- Sterling C. Keeley
Distribution
provided by Phytokeys (archived)
Thailand: Mae Hong Son, Chiang Mai, Chiang Rai, Phitsanulok, Nakhon Sawan, Phetchabun, Loei, Nong Bua Lum Phu, Udon Thani, Nong Khai, Sakon Nakhon, Nakhon Phanom, Mukdahan, Kalasin, Maha Sarakham, Khon Kaen, Chaiyaphum, Nakhon Ratchama, Ubon Ratchathani, Kanchanaburi, Lop Buri, Saraburi, Nakhon Nayok, Bangkok, Chumphon, Ranong, Phangnga, Phuket. Tropics and subtropics.
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- cc-by-3.0
- copyright
- Sukhonthip Bunwong, Pranom Chantaranothai, Sterling C. Keeley
- bibliographic citation
- Bunwong S, Chantaranothai P, Keeley S (2014) Revisions and key to the Vernonieae (Compositae) of Thailand PhytoKeys 37: 25–101
- author
- Sukhonthip Bunwong
- author
- Pranom Chantaranothai
- author
- Sterling C. Keeley
Cyanthillium cinereum
provided by wikipedia EN
Cyanthillium cinereum - flower head
Cyanthillium cinereum (also known as little ironweed and poovamkurunnal or poovamkurunnila in Malayalam, and monara kudumbiya in Sinhalese) is a species of perennial plants in the sunflower family. The species is native to tropical Africa and to tropical Asia (India, Sri Lanka, Indochina, Indonesia, etc.) and has become naturalized in Australia, Mesoamerica, tropical South America, the West Indies, and the US State of Florida.[2][3][4][5][6][7][8]
Cyanthillium cinereum is an annual herb up to 120 cm (4 feet) tall. It produces flat-topped arrays of numerous flower heads, each with pinkish or purplish disc florets but no ray florets.[8] The species can be confused with Emilia sonchifolia, but the flower bracts of the latter are much longer and vase-shaped.
Cyanthillium cinereum has been used for smoking cessation in Thailand and other countries, and as relief for the common cold.[9]
It used to be called Vernonia cinerea, but apparently there was a taxonomic update, sometime prior to early 2014.
References
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^ The Plant List, Cyanthillium cinereum (L.) H.Rob.
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^ "Open Source for Weed Assessment in Lowland Paddy Fields". Archived from the original on 2014-02-22. Retrieved 2013-09-01.
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^ "Cyanthillium cinereum (L.) H.Rob". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government. Retrieved 1 July 2014.
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^ Atlas of Living Australia
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^ Funk, V. A., P. E. Berry, S. Alexander, T. H. Hollowell & C. L. Kelloff. 2007. Checklist of the Plants of the Guiana Shield (Venezuela: Amazonas, Bolivar, Delta Amacuro; Guyana, Surinam, French Guiana). Contributions from the United States National Herbarium 55: 1–584
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^ Carnevali, G., J. L. Tapia-Muñoz, R. Duno de Stefano & I. M. Ramírez Morillo. 2010. Flora Ilustrada de la Peninsula Yucatán: Listado Florístico 1–326
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^ García-Mendoza, A. J. & J. A. Meave. 2011. Diversidad Florística de Oaxaca: de Musgos a Angispermas 1–351. Universidad Nacional Autónoma de México, Ciudad Universitaria
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^ a b Flora of North America, Cyanthillium cinereum (Linnaeus) H. Robinson
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^ Wongwiwatthananukit, Supakit (January 2009). "Efficacy of Vernonia cinerea for smoking cessation". Journal of Health Research. Bangkok, Thailand: College of Public Health Sciences, Chulalongkorn University. 23 (1): 31–6.
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- Wikipedia authors and editors
Cyanthillium cinereum: Brief Summary
provided by wikipedia EN
Cyanthillium cinereum - flower head
Cyanthillium cinereum (also known as little ironweed and poovamkurunnal or poovamkurunnila in Malayalam, and monara kudumbiya in Sinhalese) is a species of perennial plants in the sunflower family. The species is native to tropical Africa and to tropical Asia (India, Sri Lanka, Indochina, Indonesia, etc.) and has become naturalized in Australia, Mesoamerica, tropical South America, the West Indies, and the US State of Florida.
Cyanthillium cinereum is an annual herb up to 120 cm (4 feet) tall. It produces flat-topped arrays of numerous flower heads, each with pinkish or purplish disc florets but no ray florets. The species can be confused with Emilia sonchifolia, but the flower bracts of the latter are much longer and vase-shaped.
Cyanthillium cinereum has been used for smoking cessation in Thailand and other countries, and as relief for the common cold.
It used to be called Vernonia cinerea, but apparently there was a taxonomic update, sometime prior to early 2014.
- license
- cc-by-sa-3.0
- copyright
- Wikipedia authors and editors