Eriocaulon aquaticum (Hill) Druce
Seven-angle Pipewort, Common Pipewort, Hatpins
Eriocaulaceae (Pipewort Family)
Synonym(s): Eriocaulon pellucidum, Eriocaulon septangulare
USDA Symbol: ERAQ2
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.
From the Image Gallery
Bloom InformationBloom Color: White
Bloom Time: Jul , Aug , Sep
DistributionUSA: 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 ConditionsSoil Moisture: Wet
National Wetland Indicator Status
Additional resourcesUSDA: Find Eriocaulon aquaticum in USDA Plants
FNA: Find Eriocaulon aquaticum in the Flora of North America (if available)
Google: Search Google for Eriocaulon aquaticum
MetadataRecord Modified: 2018-11-30
Research By: TWC Staff