Cosmos sulphureus Cav.

Selected images: Click on each image to see a larger version and details of the record View all images (4)

Cosmos sulphureus

Photo: Mark Hyde
By Harare to Mutoko Rd

Cosmos sulphureus

Photo: Mark Hyde
By Harare to Mutoko Rd

Cosmos sulphureus

Photo: Bart Wursten
Roadside near Marondera

Cosmos sulphureus

Photo: Bart Wursten
Roadside near Marondera

Detailed records: Display species records QDS maps by: Google Maps Point records by Google Maps

Species details: Click on each item to see an explanation of that item (Note: opens a new window)

Synonyms: Bidens sulphurea (Cav.) Sch. Bip.
Common names: Yellow cosmos (English)
Frequency: Local
Status: Introduced
Description:
Annual herb to c.1.2 m with 4-angled sparsely hispid stems. Leaves: lamina ovate in outline, dissected, with ultimate segments 2-4 mm wide, narrowly oblong and apiculate, glabrous. Capitula c.1.5 cm in diameter (excluding rays). Phyllaries: outer green, acuminate; inner with membranous margins. Receptacular scales c.9 mm. Rays up to 3 cm, c.10, bright orange; apex 3-dentate. Disk florets orange-yellow. Achenes c. 20 mm (including a scabrid beak c.7 mm but excluding the pappus), blackish. Pappus of 2 horizontally spreading setae with retrorsely directed barbs.
Notes: Probably originally cultivated for ornament and now an occasional escape. Like a yellow or orange-flowered Cosmos in appearance and occurring in similar habitats to that species, but much less common.
Derivation of specific name: sulphureus: pale yellow, sulphur-yellow (not the colour of this species)
Habitat: Disturbed places; most often seen on roadside verges
Altitude range: (metres)
Flowering time:Mar - Apr
Worldwide distribution: Mexico
Zimbabwe distribution: N,C,E
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species: spilosoma lineata (Larval foodplant)
Spot characters: Display spot characters for this species
Images last updated: Monday 19 March 2007
Literature:

Beentje, H.J. & Ghazanfar, S.A. (eds.) (2005). Compositae (Part 3) Flora of Tropical East Africa Pages 808 - 810. (Includes a picture).

Wild, H. (1967). The Compositae of the Flora Zambesiaca area. 1. Heliantheae. Kirkia 6(1) Pages 33 - 34. as Bidens sulphurea


Comments

comments powered by Disqus

Other sources of information about Cosmos sulphureus:

Our websites:

Flora of Zambia: Cosmos sulphureus
Flora of Zimbabwe: cultivated Cosmos sulphureus

External websites:

African Plant Database: Cosmos sulphureus
Biodiversity Explorer (Biodiversity of southern Africa): Cosmos sulphureus
EOL (Encyclopedia of Life): Cosmos sulphureus
ePIC (electronic Plant Information Center): Cosmos sulphureus
Flora Zambesiaca web site: Cosmos sulphureus
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network) taxonomy for plants report for Cosmos sulphureus
IPNI (International Plant Names Index): Cosmos sulphureus
Ispot Southern Africa : Cosmos sulphureus
JSTOR Plant Science: Cosmos sulphureus
Kew Herbarium catalogue: Cosmos sulphureus
Tropicos: Cosmos sulphureus
West African Plants database: Cosmos sulphureus


Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-16

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2016). Flora of Zimbabwe: Species information: Cosmos sulphureus.
http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=160680, retrieved 27 August 2016

Site software last modified: 2 July 2016 1:03pm (GMT +2)
Terms of use