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Echinacea purpurea, the eastern purple coneflower, [4] purple coneflower, hedgehog coneflower, or Echinacea, is a North American species of flowering plant in the family Asteraceae. [5] It is native to parts of eastern North America and present to some extent in the wild in much of the eastern , southeastern and midwestern United States , as ...
The genus Echinacea was then formally described by Linnaeus in 1753, and this specimen as one of five species of Rudbeckia, Rudbeckia purpurea. [6] [7] Conrad Moench subsequently reclassified it in 1794 as the separate but related genus, Echinacea, with the single species Echinacea purpurea, [8] [9] so that the botanical authority is given as ...
Phyllody on a purple coneflower (Echinacea purpurea). Phyllody is the abnormal development of floral parts into leafy structures. It is generally caused by phytoplasma or virus infections, [1] though it may also be because of environmental factors that result in an imbalance in plant hormones. [2]
Such diseases were originally thought to be caused by viruses, which, like phytoplasmas, require insect vectors and cannot be cultured. Viral and phytoplasmic infections share some symptoms. [ 5 ] In 1967, phytoplasmas were discovered in ultrathin sections of plant phloem tissue and were termed mycoplasma-like organisms due to their ...
Verticillium wilt is a wilt disease affecting over 350 species of eudicot plants.It is caused by six species of Verticillium fungi: V. dahliae, V. albo-atrum, V. longisporum, V. nubilum, V. theobromae and V. tricorpus. [1]
Ahead, you’ll find pictures of common skin rashes, plus symptoms to look out for. ... What it looks like: Fifth Disease is caused by Parvovirus B19 and presents with a red rash on the cheeks ...
Echinacea pallida, the pale purple coneflower, [3] is a species of herbaceous perennial plant in the family Asteraceae. It is sometimes grown in gardens and used for medicinal purposes. It is sometimes grown in gardens and used for medicinal purposes.
Australia, Japan, Hong Kong welcome 2025: See pictures of celebrations. Saman Shafiq, USA TODAY. December 31, 2024 at 12:59 PM. Cue the fireworks because it's now 2025 in some parts of the world.