horsetail(redirected from shavegrass)
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Any of various nonflowering plants of the genus Equisetum, having a jointed hollow stem and narrow, sometimes much reduced leaves. Also called equisetum.
1. (Plants) any tracheophyte plant of the genus Equisetum, having jointed stems with whorls of small dark toothlike leaves and producing spores within conelike structures at the tips of the stems: phylum Sphenophyta
2. (Heraldry) a stylized horse's tail formerly used as the emblem of a pasha, the number of tails increasing with rank
a nonflowering plant of the genus Equisetum, family Equisetaceae, with hollow jointed stems bearing scaly leaves and a spikelike cone bearing spores.
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|Noun||1.||horsetail - perennial rushlike flowerless herbs with jointed hollow stems and narrow toothlike leaves that spread by creeping rhizomes; tend to become weedy; common in northern hemisphere; some in Africa and South America|
fern ally - pteridophytes of other classes than Filicopsida
Equisetum fluviatile, swamp horsetail, water horsetail - Eurasia; northern North America to Virginia
Equisetum hyemale, Equisetum hyemale robustum, Equisetum robustum, rough horsetail, scouring rush - evergreen erect horsetail with rough-edged stems; formerly used for scouring utensils
Equisetum palustre, marsh horsetail - scouring-rush horsetail widely distributed in wet or boggy areas of northern hemisphere