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Equisetum hyemale

Equisetum hyemale L.

 

Rough Horsetail

KingdomPlantaePlants, but not fungi, lichens, or algae (from Stearn’s Botanical Latin)
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionEquisetophytaHorsetails, which date back to the Devonian era
ClassEquisetopsidaHorsetails, spore-bearing plants related to ferns
OrderEquisetalesLiving horsetails (most are extinct)
FamilyEquisetaceaeLiving horsetails
GenusEquisetumLiving horsetails
SpecieshyemaleOf the winter, flowering in winter

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Equisetum hyemale description by Thomas H. Kent, last updated 15 Nov 2013.

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Equisetum hyemale (Rough Horsetail)

9/4/2013 · Amos Kendall Conservation Area, Dunstable, MA
≈ 3 × 3" (8 × 8.1 cm) ID is uncertain

Equisetum hyemale (Rough Horsetail)

8/31/2013 · Lewis Ginter Botanical Garden, Richmond, VA
≈ 16 × 24" (39 × 59 cm)

Range:

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