Vernonia
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Vernonia is a genus of about 1000 species of forbs and shrubs in the family Asteraceae. Some species are sometimes known as ironweeds. Some species are edible and of economic value. They are known for having intense purple flowers. The genus is named for English botanist William Vernon. Several species of Vernonia, including V. calvoana, V. amygdalina, and V. colorata, are eaten as leaf vegetables. Common names for these species include bitterleaf, ewuro, and ndole.
ExpandRead about Vernonia in the Standard Cyclopedia of Horticulture
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Cultivation
Propagation
Pests and diseases
Species
There are numerous distinct subgenra and subsections in this genus. This has lead some botanists to divided this large genus into smaller groups which separate the species into distinct genra.
Species of this genus are found in South America, Africa, s.e. Asia, and North America. Vernonia species are well known for hybridizing between similar species in areas of overlapping ranges. There are approximately 1000 species of Vernonia, a partial species list is given below. Click here for a full species list.
North America:
- Vernonia acaulis
- Vernonia altissima
- Vernonia arkansana
- Vernonia angustifolia
- Vernonia baldwinii
- Vernonia blodgettii
- Vernonia fasciculata
- Vernonia flaccidifolia
- Vernonia gigantea
- Vernonia glauca
- Vernonia larseniae
- Vernonia lettermannii
- Vernonia lindheimeri
- Vernonia marginata
- Vernonia missurica
- Vernonia noveboracensis
- Vernonia pulchella
- Vernonia texana
Africa:
Gallery
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References
- Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963
External links
- w:Vernonia. Some of the material on this page may be from Wikipedia, under the Creative Commons license.
- Vernonia QR Code (Size 50, 100, 200, 500)