Ageratum conyzoides var hirtum (Lam.) DC. 1836

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Description:

Annual herb, 10-60 cm. Leaves: base usually blunt or rounded, rarely cordate. Florets blue or white. Phyllaries 3-4 mm, oblong, abruptly acuminate, sparingly if at all hairy on the back, erose and ciliate. Style arms exserted 1 mm from corolla tube.

Licensehttp://creativecommons.org/licenses/by-nc/3.0/
Rights holder/AuthorMark Hyde, Bart Wursten, Petra Ballings, Flora of Zimbabwe
Sourcehttp://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=158650

Elevation Range:

200-2000 m

Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthoreFloras.org Copyright © Missouri Botanical Garden
Sourcehttp://www.efloras.org/florataxon.aspx?flora_id=110&taxon_id=200023021

Statistics of barcoding coverage: Ageratum conyzoides:

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 2
Specimens with Barcodes: 9
Species With Barcodes: 1

Licensehttp://creativecommons.org/licenses/by/3.0/
Rights holder/AuthorSujeevan Ratnasingham, Paul D.N. Hebert, Barcode of Life Data Systems (BOLD)
Sourcehttp://www.boldsystems.org/index.php/Taxbrowser_Taxonpage?taxid=306587

Derivation of specific name:

conyzoides: resembling the genus Conyza

Licensehttp://creativecommons.org/licenses/by-nc/3.0/
Rights holder/AuthorMark Hyde, Bart Wursten, Petra Ballings, Flora of Zimbabwe
Sourcehttp://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=158650

Diagnostic:

"Herbs, viscid hairy. Leaves 5-7 x 3-5 cm, ovate, apex acute, crenate, base rounded; petiole 1-3 cm long. Heads white, to 7 mm across, in terminal corymbose panicle; bracts 1-3-seriate, 3-4 mm long, elliptic, toothed at apex, 3-ribbed. Flowers all similar, bisexual; corolla 2.5 mm long, tubular, white, glabrous, 5-lobed at apex; stamens 5, anthers linear. Achenes 2 mm long, linear, 5-angled, hirsute along the angles; pappus 3-4 mm long, many, setaceous."

Licensehttp://creativecommons.org/licenses/by/3.0/
Rights holder/Author"Dr. N Sasidharan (Dr. B P Pal Fellow), Kerala Forest Research Institute, Peechi", India Biodiversity Portal
Sourcehttp://indiabiodiversity.org/species/show/32900

IUCN Red List Assessment:
Red List Category

VU
Vulnerable

Red List Criteria

D2

Version

3.1

Year Assessed

2003
  • Needs updating

Assessor/s

Montfar, R. & Pitman, N.

Reviewer/s

Valencia, R., Pitman, N., Lon-Ynez, S. & Jrgensen, P.M. (Ecuador Plants Red List Authority)

Contributor/s

Justification

A herb or subshrub endemic to Ecuador, where it is known from two isolated subpopulations: one on the Zamora-Loja road and another in an unspecified locale of Pichincha province. Not confirmed to occur in Ecuador's protected areas network, but may be found in the Parque Nacional Podocarpus. No specimens of this species are housed in Ecuadorian museums. Habitat destruction is the main threat to the species.
Licensehttp://creativecommons.org/licenses/by-nc-sa/3.0/
Rights holder/AuthorInternational Union for Conservation of Nature and Natural Resources
Sourcehttp://www.iucnredlist.org/apps/redlist/details/43119

Miscellaneous Details:

"Notes: Weeds in fallow fields, Plains, Naturalized, Native of Tropical America"

Licensehttp://creativecommons.org/licenses/by/3.0/
Rights holder/Author"G. Renu, Sanjana Julias Thilakar, D. Narasimhan, Centre for Floristic Research, Department of Botany, Madras Christian College, Tambaram", India Biodiversity Portal
Sourcehttp://indiabiodiversity.org/species/show/32900

Diagnostic:

Habit: Herb

Licensehttp://creativecommons.org/licenses/by/3.0/
Rights holder/Author"G. Renu, Sanjana Julias Thilakar, D. Narasimhan, Centre for Floristic Research, Department of Botany, Madras Christian College, Tambaram", India Biodiversity Portal
Sourcehttp://indiabiodiversity.org/species/show/32900

National NatureServe Conservation Status:
United States

Rounded National Status Rank: NNA - Not Applicable

Licensehttp://creativecommons.org/licenses/by-nc/3.0/
Rights holder/AuthorNatureServe
Sourcehttp://explorer.natureserve.org/servlet/NatureServe?searchName=Ageratum+conyzoides

Miscellaneous Details:

Common name from its goat like odour.

Licensehttp://creativecommons.org/licenses/by/3.0/
Rights holder/AuthorKeystone Foundation, India Biodiversity Portal
Sourcehttp://indiabiodiversity.org/species/show/32900
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith