Definition of Genus Pyrethrum

1. Noun. Used in former classifications for plants later placed in genus Chrysanthemum and now often included in genus Tanacetum.

Exact synonyms: Pyrethrum
Generic synonyms: Asterid Dicot Genus
Group relationships: Aster Family, Asteraceae, Compositae, Family Asteraceae, Family Compositae

Lexicographical Neighbors of Genus Pyrethrum

genus Ptychozoon
genus Puccinia
genus Pueraria
genus Puffinus
genus Pulex
genus Pulicaria
genus Pulsatilla
genus Punica
genus Pycnanthemum
genus Pygopus
genus Pygoscelis
genus Pylodictus
genus Pyracantha
genus Pyralis
genus Pyrausta
genus Pyrethrum (current term)
genus Pyrocephalus
genus Pyrola
genus Pyrophorus
genus Pyrrhula
genus Pyrrhuloxia
genus Pyrrosia
genus Pyrularia
genus Pyrus
genus Pythium
genus Python
genus Pyxidanthera
genus Quercus

Literary usage of Genus Pyrethrum

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Technologist (1863)
"The genus Pyrethrum * has been established by ... However this may be, present authors unanimously adopt the genus Pyrethrum. It belongs to the great family ..."

2. Cyclopedia of American Horticulture: Comprising Suggestions for Cultivation by Liberty Hyde Bailey, Wilhelm Miller (1901)
"Although the genus Pyrethrum was long ago reduced to the rank of a mere section of Chrysanthemum, the name Pyrethrum is still prominent in our nursery ..."

3. The American Naturalist by American Society of Naturalists, Essex Institute (1881)
"... wrote us recently as follows: " The only species of its genus, Pyrethrum roseum, which gives a good, effective insect powder, is nowhere cultivated, ..."

4. The Canadian Entomologist by Entomological Society of Canada (1951- ), Entomological Society of Ontario (1879)
"It is singular that while there are many other composite plants closely related to the genus Pyrethrum, as yet this peculiar property has been found only in ..."

5. Report of the Secretary of Agriculture by United States Dept. of Agriculture (1882)
"... authority on everything pertaining to the natural history of that region, wrote us recently as follows : " The only species of its genus, Pyrethrum ..."

6. The House Fly, Disease Carrier: An Account of Its Dangerous Activities and by Leland Ossian Howard (1911)
"The powder itself is made from the ground flower-heads of two species of the genus pyrethrum, which are composite plants not unlike the common ox-eye daisy. ..."

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