Wildflower Archive

wetland wildflower

Flattened Pipewort

Eriocaulon compressum

Also known as Hat Pins

Flattened Pipewort (Eriocaulon compressum)1 of 2
Jay Horn · CC BY

Native to the Southeast and the Northeast

Coastal areas from New Jersey to Florida and Texas

  • Light Partial shade Sun tolerance
  • Moisture Wet Moisture preference
  • Zones n/a Cold to heat range
  • Bloom May–Oct Flowering time
  • Height up to 28 in to 71 cm
  • Life cycle Perennial Annual to perennial
Full details, see below

In the garden

A wetland wildflower for partial shade and wet soil. At up to 28 in, it suits rain gardens, pond edges, and damp low spots.

Growing conditions

Light
Full sun Partial shade Full shade
Moisture
Dry Moist Wet

Pollinators & wildlife

  • Bees Ligated Furrow Bee
    also Megachile albitarsis, Lasioglossum tamiamense, Hylaeus confluens +1 more Lasioglossum coreopsis
  • Butterflies Swarthy Skipper also Atrytone delaware

Full plant details

Where it grows

Habitat
WetlandThe wild plant community it grows in.
Native range
The Southeast and the NortheastUnited States (13): AL, DC, DE, FL, GA, LA, MD, MS, NC, NJ, SC, TX, VA. Where it grows wild on its own, by state and province.
Native distribution
Coastal areas from New Jersey to Florida and TexasThe same native range, usually more exact than the state list, and often noting where it has spread beyond it.

Growing conditions

Light
Partial shadeHow much sun it takes, from full sun to full shade.
Moisture
WetThe soil dampness it prefers, from dry to wet.
Soil
Wet soils or shallow waterThe soils it grows in naturally.

Growth & form

Height
up to 28 in (to 71 cm)Typical mature height.
Life cycle
PerennialWhether it lives a single season (annual), two (biennial), or returns for years (perennial).

Flowers, foliage & fruit

Type
WildflowerWhat kind of plant it is.
Bloom
May–OctWhen it flowers.
Flower color
WhiteThe bloom color, or colors.
Toxicity
None knownWhether any part is poisonous to people or pets.