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Vernonia Myriantha
''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 from Cambridge University, who collected in Maryland, USA in 1698. Species Species of this genus are found in S ... [...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] |
Vernonia Altissima
''Vernonia gigantea'' (also known as giant ironweed, tall ironweed or ironweed) is a species of perennial plant from family Asteraceae found in United States and Canada. The plant is native to the eastern United States, north to New York state and Ontario, and southwest to Texas. Description They are described as tall, or . The stem is either green or purplish green coloured, and can be either hairy or pubescent. The leaves are up to long and across, and are ovate. Their leaves could also be lanceolate-oblong or elliptically shaped, with serrated margins. The leaves' upper surface is hairless and is dark green in colour. The leaves' bases may have a petiole or be sessile. The flowers open from July to September and are purple in colour. They can be found growing in moist soils along roadsides, and are common in meadows and open woodlands. The seeds are wind-dispersed. The plant is self-incompatible and exhibits substantial ecotypic variation, a factor which may explain their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vernonia Gigantea
''Vernonia gigantea'' (also known as giant ironweed, tall ironweed or ironweed) is a species of perennial plant from family Asteraceae found in United States and Canada. The plant is native to the eastern United States, north to New York state and Ontario, and southwest to Texas. Description They are described as tall, or . The stem is either green or purplish green coloured, and can be either hairy or pubescent. The leaves are up to long and across, and are ovate. Their leaves could also be lanceolate-oblong or elliptically shaped, with serrated margins. The leaves' upper surface is hairless and is dark green in colour. The leaves' bases may have a petiole or be sessile. The flowers open from July to September and are purple in colour. They can be found growing in moist soils along roadsides, and are common in meadows and open woodlands. The seeds are wind-dispersed. The plant is self-incompatible and exhibits substantial ecotypic variation, a factor which may explain their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vernonia Flaccidifolia
''Vernonia flaccidifolia'' is a species of flowering plant in the family Asteraceae The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae w .... It is native to Georgia, Tennessee, and Alabama. References flaccidifolia Flora of Georgia (U.S. state) Flora of Alabama Flora of Tennessee {{Asteraceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vernonia Fasciculata
''Vernonia fasciculata'', the smooth ironweed or common ironweed, or prairie ironweed is a species of perennial plant from family Asteraceae. It is native to Manitoba in Canada and the north-central U.S.A. ''Vernonia fasciculata'' inhabits areas with moist soils and prairies. It flowers in July to September. Description ''Vernonia fasciculata'' is a herbaceous perennial that grows tall with unbranched stems, which end in an inflorescences with magenta flowers arranged in a dense corymb Corymb is a botanical term for an inflorescence with the flowers growing in such a fashion that the outermost are borne on longer pedicels than the inner, bringing all flowers up to a common level. A corymb has a flattish top with a superficial re .... Cultivation ''V. fasciculata'' is winter hardy in USDA zones 4-9, it is planted in full sun and used in rain gardens and as a naturalized plant because of its showy flower display, it is deer tolerant and adaptable to wet soils. References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vernonia Blodgettii
''Vernonia blodgettii'', the Florida ironweed or Blodgett's ironweed, is a species of perennial plant from family Asteraceae that is native to Florida and the Bahamas The Bahamas (), officially the Commonwealth of The Bahamas, is an island country within the Lucayan Archipelago of the West Indies in the Atlantic Ocean, North Atlantic. It takes up 97% of the Lucayan Archipelago's land area and is home to ....''Vernonia blodgettii''. NatureServe.''Vernonia blodgettii''. Flora of North America. References blod ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vernonia Angustifolia
''Vernonia angustifolia'' is a species of flowering plant in the family Asteraceae, native to the southeastern United States (Alabama, Florida, Georgia, Louisiana, Mississippi, North Carolina and South Carolina). It was first described by André Michaux André Michaux, also styled Andrew Michaud, (8 March 174611 October 1802) was a French botanist and explorer. He is most noted for his study of North American flora. In addition Michaux collected specimens in England, Spain, France, and even Per ... in 1803. References angustifolia Flora of the Southeastern United States Plants described in 1803 Flora without expected TNC conservation status {{Cichorioideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vernonia Arkansana
''Vernonia arkansana'' (also known as Arkansas ironweed and great ironweed) is a species of perennial plant from family Asteraceae found in south-central United States. The plant is high and wide. The flowers bloom from August to September and are pink-purple coloured. The cultivar 'Mammuth' is a recipient of the Royal Horticultural Society's Award of Garden Merit. Ecology The plant is pollinated by various insects such as bees, butterflies, and skippers. The same fauna representatives also collect nectar. Bees like '' Melissodes vernoniae'' are frequent visitors to ''Vernonia'' plants in general. Another special guest the species attracts is ''Aphis vernoniae'', an aphid that prefers to suck on juice of the species. Various caterpillars of moths also enjoy the feeding. Birds on the other hand, don't feed on it, due to hard seeds, and small amount of pollen left (for hummingbird Hummingbirds are birds native to the Americas and comprise the biological family Trochilidae. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vernonia Acaulis
''Vernonia acaulis'' is a species of perennial plant from family Asteraceae The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae w .... It is native to the U.S.A. References acaulis Flora of Florida Flora of Georgia (U.S. state) Flora of South Carolina Flora of North Carolina {{Cichorioideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybrid (biology)
In biology, a hybrid is the offspring resulting from combining the qualities of two organisms of different breeds, varieties, species or genera through sexual reproduction. Hybrids are not always intermediates between their parents (such as in blending inheritance), but can show hybrid vigor, sometimes growing larger or taller than either parent. The concept of a hybrid is interpreted differently in animal and plant breeding, where there is interest in the individual parentage. In genetics, attention is focused on the numbers of chromosomes. In taxonomy, a key question is how closely related the parent species are. Species are reproductively isolated by strong barriers to hybridisation, which include genetic and morphological differences, differing times of fertility, mating behaviors and cues, and physiological rejection of sperm cells or the developing embryo. Some act before fertilization and others after it. Similar barriers exist in plants, with differences in flowering tim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North America
North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the west and south by the Pacific Ocean. Because it is on the North American Plate, North American Tectonic Plate, Greenland is included as a part of North America geographically. North America covers an area of about , about 16.5% of Earth's land area and about 4.8% of its total surface. North America is the third-largest continent by area, following Asia and Africa, and the list of continents and continental subregions by population, fourth by population after Asia, Africa, and Europe. In 2013, its population was estimated at nearly 579 million people in List of sovereign states and dependent territories in North America, 23 independent states, or about 7.5% of the world's population. In Americas (terminology)#Human ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southeast Asia
Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical United Nations geoscheme for Asia#South-eastern Asia, south-eastern region of Asia, consisting of the regions that are situated south of mainland China, east of the Indian subcontinent, and north-west of mainland Australia. Southeast Asia is bordered to the north by East Asia, to the west by South Asia and the Bay of Bengal, to the east by Oceania and the Pacific Ocean, and to the south by Australia (continent), Australia and the Indian Ocean. Apart from the British Indian Ocean Territory and two out of atolls of Maldives, 26 atolls of Maldives in South Asia, Maritime Southeast Asia is the only other subregion of Asia that lies partly within the Southern Hemisphere. Mainland Southeast Asia is completely in the Northern Hemisphere. East Timor and the southern portion of Indonesia are the only parts that are south of the Equator. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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