Northern Prairie Wildlife Research Center
Southern Wetland Flora
Field Office Guide to Plant Species
Eriocaulon decangulare L.
- Family: Pipewort (Eriocaulaceae)
- Flowering: June-October
- Field Marks: Pipeworts are recognized by their single white or gray heads of flowers and
leafless stems. This species has hard, hairy heads of flowers and its bracts longer than its
- Habitat: Low pinelands, wet prairies, flatwoods, bogs, wet ditches, stream banks, along shores,
sometimes in water as much as 3 feet deep.
- Habit: Perennial herb with stout, much-branched rhizomes, forming clumps.
- Stems: Upright, twisted, with 8-12 vertical ridges, up to 44 inches tall, bearing no leaves and
a single head of flowers.
- Leaves: All basal, elongated, very narrow, drawn out into a long point, up to 15 inches long,
up to 1/3 inch wide, smooth.
- Flowers: Many crowded into a hard, white, nearly spherical head up to 3/4 inch in diameter;
flowers subtended by hairy bracts longer than the flowers; male and female flowers separate but
in the same head.
- Sepals: 2, linear, up to 1/6 inch long, yellowish white, bearing club-shaped hairs.
- Petals: 2, spatulate, united at the base, shorter than the sepals, hairy.
- Stamens: Usually 4.
- Pistils: Ovary superior, on a short stalk; styles 2-branched.
- Fruits: Capsules containing minute, oval seeds.
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