Summary
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Cosmos sulphureus is also known as Sulfur Cosmos and Yellow Cosmos. Its native habitat is Central America.
Description
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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. Raysup 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.
Diagnostic
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Habit: Herb
Sources and Credits
- (c) 106611639464075912591, some rights reserved (CC BY-NC-SA), uploaded by 106611639464075912591,
https://picasaweb.google.com/106611639464075912591/TampinesEcoPark#5910383346978028146
- (c) Ashton Tassin, some rights reserved (CC BY-NC), uploaded by Ashton Tassin
- (c) Jenny Smith, some rights reserved (CC BY-NC), uploaded by Jenny Smith
- (c) Wikipedia, some rights reserved (CC BY-SA),
http://en.wikipedia.org/wiki/Cosmos_sulphureus
- (c) Mark Hyde, Bart Wursten and Petra Ballings, some rights reserved (CC BY-NC),
http://eol.org/data_objects/30290543
- (c) India Biodiversity Portal, some rights reserved (CC BY),
http://eol.org/data_objects/26079397
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