9200.000 Helianthus L. - Sunflowers

Wild, H. (1967) The Compositae of the Flora Zambesiaca area. 1. Heliantheae. Kirkia 6(1) 1-62

Description of the genus

Annual (in ours) or perennial herbs. Leaves alternate (in ours). Capitula large, solitary and terminal or laxly corymbose, heterogamous, radiate; ray florets neuter, yellow; disk florets bisexual, fertile. Phyllaries 2-3-seriate. green and herbaceous. Receptacular scales folded, partly enclosing achenes at maturity. Achenes ± flattened, slightly angled. Pappus of 2(-4) deciduous bristles.

Worldwide: 50 species in N America

Mozambique: 3 taxa.

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Links to taxa: View: living plant images - herbarium specimen images - all images for this genus

Species	FZ divisions	Content
annuus L.		Description, Image
argyrophyllus Torr. & Gray	GI,M
debilis Nutt. var. cucumerifolius (Torr. & Gray) A. Gray	M

Other sources of information about Helianthus:

Our websites:

Flora of Zambia: Helianthus
Flora of Zimbabwe: Helianthus
Flora of Zimbabwe: cultivated Helianthus

External websites:

African Plants: A Photo Guide (Senckenberg): Helianthus
BHL (Biodiversity Heritage Library): Helianthus
EOL (Encyclopedia of Life): Helianthus
GBIF (Global Biodiversity Information Facility): Helianthus
Google: Web - Images - Scholar
iNaturalist: Helianthus
IPNI (International Plant Names Index): Helianthus
JSTOR Plant Science: Helianthus
Mansfeld World Database of Agricultural and Horticultural Crops: Helianthus
Plants of the World Online: Helianthus
Tropicos: Helianthus
Wikipedia: Helianthus