Chromolaena odorata   (L.) King & H.E.Robins.  (Plant)
Organism information awaits expert curation
Class: Magnoliopsida

Image copyrights: Vander Velde

Big bushy herb or subshrub with long rambling (but not twining branches; stems terete, pubescent; leaves opposite, flaccid-membranous, velvety-pubescent, deltoid-ovate, acute, 3-nerved, very coarsely toothed, each margin with 1-5 teeth, or entire in youngest leaves; base obtuse or subtruncate but shortly decurrent; petiole slender, 1-1.5 cm long; blade mostly 5-12 cm long, 3-6 cm wide, capitula in sub-corymbose axillary and terminal clusters; peduncles 1-3 cm long, bracteate; bracts slender, 10-12 mm long; involucre of about 4-5 series of bracts, pale with green nerves, acute, the lowest ones about 2 mm long, upper ones 8-9 mm long, all acute, distally ciliate, flat, appressed except the extreme divergent tip; florets all alike (disc-florets), pale purple to dull off-white, the styles extending about 4 mm beyond the apex of the involucre, spreading radiately; receptacle very narrow; florets about 20-30 or a few more, 10-12 mm long; ovarian portion 4 mm long; corolla slender trumpet form; pappus of dull white hairs 5 mm long; achenes glabrous or nearly so.

Synonym (s)

Common Name (s)
Economic Importance and Threats



• Maharashtra INDIA
• Karnataka INDIA
• Tamil Nadu INDIA
• Andhra Pradesh INDIA
• Orissa INDIA
• West Bengal INDIA

Literature Source(s)
  • Rodrigues, RS; Mascarenhas, A; Jagtap, TG (2011) An evaluation of flora from coastal sand dunes of India: Rationale for conservation and management Ocean & Coastal Management Elsevier B.V. 54(2) 181-188 Available at -
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Hawaiian Ecosystems at Risk project (HEAR) Available at -

Page last updated on:2011-03-22

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