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Vernonia Cichoriiflora
''Vernonia'' is a genus of about 350 species of forbs and shrubs in the Daisy family Asteraceae. Some species are known as ironweed. Some species are edible and of economic value. They are known for having intense purple flowers. There have been numerous distinct subgenera and subsections named in this genus, and some botanists have divided the genus into several distinct genera. For instance, the ''Flora of North America'' recognizes only about twenty species in ''Vernonia'' ''sensu stricto'', seventeen of which are in North America north of Mexico, with the others being found in South America. Taxonomy The genus was circumscribed by Johann Christian Daniel von Schreber in Gen. Pl. ed. 8 vol.2 on page 541 in 1791. The genus name of ''Vernonia'' is in honour of William Vernon (1666/67 - ca.1711), who was an English plant collector, ( bryologist) and entomologist Entomology () is the scientific study of insects, a branch of zoology. In the past the term "insect" was les ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vernonia Baldwinii
''Vernonia baldwinii'', commonly known as western ironweed or Baldwin's ironweed, is a perennial herb native to the central United States. It is in the Asteraceae (aster) family. Description ''Vernonia baldwinii'' is a tall, perennial herb with rhizomes. Its stems are densely tomentose, branched, round in cross section, and range up to in height, sometimes taller. Its leaves are lanceolate, cauline and alternate, and are about in length and in width. The larger leaves have serrated edges. The upper surface of the leaves is minutely hairy, and the lower surface has longer, often bent or tangled hairs. The inflorescence is showy and somewhat flat-topped, consisting of irregularly branched terminal panicles, and measures or more across. Flowerheads have 17 to 34 disk flowers only, with no ray flowers. The corollas on the disk flowers are deep pink to purple, 5-lobed, glabrous, and long. Taxonomy The genus ''Vernonia'' is named for the English botanist William Vernon, and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
