E-Flora BC: Electronic Atlas of the Flora of British Columbia

Equisetum telmateia subsp. braunii Ehrh. (Milde) Hauke
giant horsetail
Equisetaceae (Horsetail family)

Introduction to Vascular Plants
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Distribution of Equisetum telmateia subsp. braunii
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Species Information

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General:
Perennial from a felty-hairy, blackish, tuber-bearing rhizome.
Stems:
Sterile stems 15-150 cm tall, 5-20 mm thick, their central cavity more than 2/3 the stem diameter, regularly and abundantly branched, the sheaths with 15-30 teeth, the teeth with dark tips; branches in regular whorls; fertile stems appearing in spring before sterile stems, 10-40 cm tall, pale brown, unbranched, dying when the spores are shed, the sheaths 4-8, pale brown with 20-40 darker teeth.
Cones:
4-8 cm long, hollow, rounded at the tip.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist to wet alluvial forests, loamy banks, cliffs, seepage areas, gullies, swamps, and roadsides, in the lowland and montane zones; frequent in coastal BC, rare east of the Coast-Cascade Mountains; S to CA.

Source: The Illustrated Flora of British Columbia

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Equisetum telmateia var. braunii (Milde) Milde

Taxonomic and Nomenclatural Links

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General References