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Marcus, Joseph A.
Equisetum hyemale var. affine
Equisetum hyemale L. var. affine (Engelm.) A.A. Eaton
Synonym(s): Equisetum affine, Equisetum hyemale ssp. affine, Equisetum hyemale var. californicum, Equisetum hyemale var. pseudohyemale, Equisetum hyemale var. robustum, Equisetum praealtum, Equisetum robustum, Hippochaete hyemalis, Hippochaete hyemalis ssp. affinis
USDA Symbol: EQHYA
Common scouring rush is a spreading, reed-like perennial to 3 ft (0.9 m) tall. The evergreen stems are cylindrical, about 1/3 in (0.8 cm) in diameter, jointed, hollow, usually unbranched, and have rough longitudinal ridges. The tiny leaves are joined together around the stem, forming a narrow black-green band or sheath at each joint. Like other Pteridophytes (ferns and their relatives), scouring rush does not produce flowers or seeds.
Bloom InformationBloom Color:
Not Applicable Bloom Time:
Jan , Feb , Mar , Apr , May , Jun , Jul , Aug , Sep , Oct , Nov , Dec Bloom Notes:
Not a flowering plant. Reproduces by spores contained within sporangia borne on peltate
, WY Canada: NB
, PE Native Distribution:
Throughout the continental U.S. Native Habitat: In
open or wooded areas along streams, on alluvial flats, and on wet ledges; throughout Texas, most common in Blackland Prairies and on the Edwards Plateau. Sand, loam, clay, or limestone; poor drainage okay or in shallow water.
Growing ConditionsWater Use:
Medium Light Requirement:
Sun , Part Shade Soil Moisture:
Wet Soil Description:
Occurs in wet places, including pond margins, swamps, floodplains and ditches. Conditions Comments:
Horsetails smooth, segmented, upright foliage appears striking in a container, pond or landscape setting. It is one of the best dragonfly perches. The plant does not have true fruit,
it has interesting cones instead. It is best to contain it in a pot with no holes and be watchful that it doesnt creep over the edge. It is very aggressive.
BenefitUse Ornamental: Bog or pond area, Water garden, Erosion control. Often grown in Japanese-style gardens, at the edge of ponds and in the margins of ornamental water gardens.
Use Wildlife: Used as a homeopathic remedy for alleviation of hemmorrhoid symptoms.
Use Other: A dense stand of scouring rush along the margin of an ornamental pool can be very attractive and will exclude weeds.
Interesting Foliage: yes
Deer Resistant: High
PropagationPropagation Material: Clump Division , Root Division
Commercially Avail: yes
From the National Suppliers Directory
According to the inventory provided by Associate Suppliers, this plant is available at the following locations:
Toadshade Wildflower Farm
- Frenchtown, NJ
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Lady Bird Johnson Wildflower Center
- Austin, TX
Record Last Modified: 2008-10-09
Research By: TWC Staff