is a genus
of about 400 species commonly known as pipeworts
, of monocotyledonous flowering plants
in the family Eriocaulaceae
. The genus is widely distributed, with the centers of diversity for the group occurring in tropical
regions, particularly southern Asia
and the Americas
. A few species extend to temperate
regions, with ca. 10 species in the United States
, mostly in the southern states from California
, and only two species in Canada
has 35 species, also mostly southern. Only one species (E. aquaticum
) occurs in Europe
, where it is confined to the Atlantic Ocean
coasts of Scotland
this species also occurs in eastern North America and is thought to be a relatively recent natural colonist in Europe. In the Americas, Eriocaulon
is the only genus in its family that occurs north of Florida.
They tend to be associated with wet soils, many growing in shallow water, in wetlands
, or in wet savannas like flatwoods
. In wet soils, their abundance appears to be related to water levels, fire frequency, and competition from other plants such as grasses. Experiments have shown that they are weak competitors compared to many other wetland plant species.
Some species can persist as buried seeds during unfavorable conditions.
The scientific name is derived from Ancient Greek
, meaning 'wool', and καυλός, caulos
, meaning 'stalk'.
The species are mostly herbaceous perennial plants, though some are annual plants; they resemble plants in the related families Cyperaceae (sedges) and Juncaceae (rushes), and like them, have rather small, wind-pollinated flowers.
Names were sourced from official sources including: the Flora of North America, the Flora of China, currently accepted Australian taxa from the Australian Plant Name Index, etc..
This page was last edited on 23 March 2018, at 04:35.
under CC BY-SA license.