Page author: Hattie Palmer
Equisetum ×ferrissii
Ferriss' scouring rush
Specimens
Photos

Origin: Native

Conservation Status: Not of concern

Description:
General:

Annual to perennial herb, 20-180 cm; sheath 7-17 mm, 3-12 mm broad, commonly with dark bands; teeth 14-32, deciduous or persistent.

Leaves:

None

Spores:

Cone tip pointed; spores white and mishappen.

Accepted Name:
Equisetum ×ferrissii Clute
Publication: Fern Bull. 12: 22. 1904. 1904.

Synonyms & Misapplications:
Equisetum hyemale L. var. elatum (Engelm.) C.V. Morton [Peck]
Additional Resources:

PNW Herbaria: Specimen records of Equisetum ×ferrissii in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Equisetum ×ferrissii checklist entry.

E-Flora BC: Equisetum ×ferrissii atlas page.

CalPhotos: Equisetum ×ferrissii photos.

USDA Plants: Equisetum ×ferrissii information.

25 photographs:
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