
1) Fern ally 2) Fly swatter of a sort 3) Flyswatter on a farm 4) Tend to become weedy
Found on
https://www.crosswordclues.com/clue/horsetail

• (n.) A leafless plant, with hollow and rushlike stems. It is of the genus Equisetum, and is allied to the ferns. See Illust. of Equisetum. • (n.) A Turkish standard, denoting rank.
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http://thinkexist.com/dictionary/meaning/horsetail/

(Equisetum species), plants of the genus Equisetum, 30 species of rushlike, conspicuously jointed, perennial herbs. Equisetum is the only living ... [7 related articles]
Found on
http://www.britannica.com/eb/a-z/h/71

Horsetail is a primitive, spore-bearing plant (a sphenopsid) with rhizomes that was common during the Mesozoic Era . Its side branches are arranges in rings along the hollow stem. Horsetails date from the Devonian period 408-360 million years ago, but are still around today and are invasive weeds. Classification: Pteridophyte, Sphenopsid.
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http://www.enchantedlearning.com/subjects/dinosaurs/glossary/

1. <botany> A leafless plant, with hollow and rushlike stems. It is of the genus Equisetum, and is allied to the ferns. ... 2. A Turkish standard, denoting rank. ... Commanders are distinguished by the number of horsetails carried before them. Thus, the sultan has seven, the grand vizier five, and the pashas three, two, or one. Shrubby horset...
Found on
http://www.encyclo.co.uk/local/20973
Horse'tail` noun 1. (Botany) A leafless plant, with hollow and rushlike stems. It is of the genus
Equisetum , and is allied to the ferns. See
Illust. of
Equisetum .
2. A Turkish standard, denoting rank. » Commanders are distinguished by the number of...
Found on
http://www.encyclo.co.uk/webster/H/63

[
n] - perennial rushlike flowerless herbs with jointed hollow stems and narrow toothlike leaves that spread by creeping rhizomes
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http://www.webdictionary.co.uk/definition.php?query=horsetail

a plant which first appeared in the Devonian. Horsetails have jointed stems with a ring of long, pointed leaves and branches at each joint. Equisetum is the only type of horsetail alive today. Fossil horsetails grew up to 30 m in height, for example Calamites, which had a very thin stem but grew extremely long and probably crept like bind weed
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https://www.encyclo.co.uk/local/20800

Plant related to ferns and club mosses; some species are also called scouring rush. There are about 35 living species, bearing their spores on cones at the stem tip. The upright stems are ribbed and often have spaced whorls of branches. Today they are of modest size, but hundreds of millions of years ago giant treelike forms existed. (Genus
Found on
https://www.encyclo.co.uk/local/21221

Rich in minerals and vitamins. It enriches the blood, hardens the fingernails and revitalizes lifeless hair. It is also is good for those white spots that occur on the finger nails, which indicate a calcium imbalance in the body.
Found on
https://www.encyclo.co.uk/local/22769
No exact match found.