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The Persian chrysanthemum C. coccineum also produces pyrethrins but at a much lower level. Both may be planted in low-altitude zones in dry soil, but the pyrethrin level is lower. [15] Pyrethrum extracted of the Persian chrysanthemum (painted daisy) was already imported to central Europe from Georgia in the middle of the
Pyrethrum was a genus of several Old World plants now classified in either Chrysanthemum or Tanacetum which are cultivated as ornamentals for their showy flower heads. Pyrethrum continues to be used as a common name for plants formerly included in the genus Pyrethrum.
A pyrethroid is an organic compound similar to the natural pyrethrins, which are produced by the flowers of pyrethrums (Chrysanthemum cinerariaefolium and C. coccineum). Pyrethroids are used as commercial and household insecticides. [1] In household concentrations pyrethroids are generally harmless to humans. [1]
First up are amaryllis, azaleas, hyacinths, baby’s breath, and chrysanthemums – all toxic to pets – plus these five classic Valentine’s Day choices: Credit: Getty Images. 1.
This is a partial list of herbs and herbal treatments with known or suspected adverse effects, either alone or in interaction with other herbs or drugs.Non-inclusion of an herb in this list does not imply that it is free of adverse effects.
Houseplants. Indoor plants can still release pollen, sap, or spores, and can also collect mold and dust. Symptoms of a plant allergy may include runny nose; itchy eyes, throat, and/or ears; skin ...
Chrysanthemums (/ k r ɪ ˈ s æ n θ ə m ə m z / kriss-AN-thə-məmz), sometimes called mums or chrysanths, [5] are flowering plants in the Asteraceae family. [4] They are native to East Asia and northeastern Europe. Most species originate from East Asia, and the center of diversity is in China. [6] Countless horticultural varieties and ...
Puccinia horiana is a microcyclic, autoecious rust, meaning that the fungus has two known spore stages: teliospores and basidiospores, as well as no known alternate host. [6] Similar to other microcyclic rusts, two-celled teliospores produce unicellular basidiospores which are then dispersed via air currents.