Scouring Rush (2)

Scouring Rush are not rushes but Horsetails which are prehistoric organisms. They grow with evergreen, hollow, bamboo-like stems in wet woods, moist hillsides and at water's edge. The leaves are reduced to tiny, scale-like teeth fused into a sheath around the joints of the stem. Teeth are usually shed during the growing season. Spores are produced in the pine cone-like heads.

Equisetum laevigatum

Smooth Scouring Rush
Equisetum laevigatum

Family: Horsetail (Equisetaceae)
AKA: Smooth Horsetail
Photo taken on: June 13, 2017
Location: Rio Chama, Abiquiu, NM
Life Zones: Plains to montane
Habitat: Moist, open areas

Grows 8" to 5 feet tall with a smooth (unridged) stem. Sheaths are longer than wide and have one dark band. Cones are rounded.

Flora of North America reference.

Equisetum hyemale

Common Scouring Rush
Equisetum hyemale subsp. affine

Family: Horsetail (Equisetaceae)
AKA: Rough Horsetail, Scouring-rush Horsetail
Photo taken on: August 24, 2007
Location: Union Canyon, GV, CO
Life Zones: Plains to montane
Habitat: Moist areas, stream banks

Grows 2 to 4 feet with a stem which has rough ridges.  It has two dark bands around the sheath and the cone has a pointed tip.

Flora of North America reference.

Green & Brown Flowers