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Eriocaulon aquaticum (Common pipewort) | NPIN

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Eriocaulon aquaticum (Common pipewort)
Bransford, W.D. and Dolphia

Eriocaulon aquaticum

Eriocaulon aquaticum (Hill) Druce

Common Pipewort, Sevenangle pipewort

Eriocaulaceae (Pipewort Family)

Synonym(s): Eriocaulon pellucidum, Eriocaulon septangulare

USDA Symbol: ERAQ2

USDA Native Status: L48 (N), CAN (N), SPM (N)

An emergent aquatic with a cottony, grayish-white, knob-like flower head atop a 7-sided, leafless stalk above a submerged tuft of grass-like, basal leaves.

This striking wetland plant is the most common and widespread of several species of pipewort in the East. The plants whitish roots have many conspicuous cross markings. The alternate common name Hatpins aptly describes the plants overall appearance. This species has also been called E. septangulare.


Plant Characteristics

Duration: Perennial
Habit: Herb

Bloom Information

Bloom Color: White
Bloom Time: Jul , Aug , Sep


USA: CT , DC , DE , IN , MA , MD , ME , MI , MN , NC , NH , NJ , NY , OH , PA , RI , SC , VA , VT , WI
Canada: MB , NB , NL , NS , ON , PE , QC
Native Distribution: Manitoba east to Nova Scotia, south to South Carolina, and north and northwest to Ohio, Indiana, Michigan, Wisconsin, and Minnesota.
Native Habitat: Still water at edges of ponds and lakes.

Growing Conditions

Soil Moisture: Wet

Recommended Species Lists

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Additional resources

USDA: Find Eriocaulon aquaticum in USDA Plants
FNA: Find Eriocaulon aquaticum in the Flora of North America (if available)
Google: Search Google for Eriocaulon aquaticum


Record Modified: 2007-01-01
Research By: TWC Staff

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© 2014 Lady Bird Johnson Wildflower Center