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6512.000 Swertia
Description of the genus
Annual or perennial herbs. Stems 4-ridged. Leaves well-developed. Flowers 4-5-merous in lax few-many-flowered cymes, rarely solitary. Calyx 4-5-lobed, tube very short. Corolla 4-5-lobed with a very short tube, lobes with 1-2 basal glandular nectaries within. Stamens 4-5, anthers without glands (in ours). Ovary ellipsoid, 1-locular. Stigma 2-lobed. Capsule septicidally 2-valved. Seeds numerous. Worldwide: 50 species in northern temperate zones, Africa and Malesia Zimbabwe: 4 taxa. |
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Links to taxa: View: living plant images - herbarium specimen images - all images for this genus
| Species | FZ divisions | Content |
| quartiniana A. Rich. | E | |
| tetrandra Hochst. | E | Description, Image |
| usambarensis Engl. var. usambarensis | E | |
| welwitschii Engl. | N,C,E | Description, Image |
Other sources of information about Swertia:
Our websites:
Flora of Burundi: SwertiaFlora of Malawi: Swertia
Flora of Mozambique: Swertia
Flora of Zambia: Swertia
External websites:
African Plants: A Photo Guide (Senckenberg): SwertiaBHL (Biodiversity Heritage Library): Swertia
EOL (Encyclopedia of Life): Swertia
GBIF (Global Biodiversity Information Facility): Swertia
Google: Web - Images - Scholar
iNaturalist: Swertia
IPNI (International Plant Names Index): Swertia
JSTOR Plant Science: Swertia
Mansfeld World Database of Agricultural and Horticultural Crops: Swertia
Plants of the World Online: Swertia
Tropicos: Swertia
Wikipedia: Swertia
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