Eriocaulon
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Eriocaulon is a genus of nearly 500 species of monocotyledonous flowering plants in the family Eriocaulaceae, commonly known as pipeworts. Species of Eriocaulon have a wide distribution in the Americas, the British Isles, sub-Saharan Africa, central, east, south, and southeast Asia, Papuasia, Australia, and the Pacific.[2]
Etymology
The scientific name is derived from Ancient Greek ἔριον, Script error: No such module "lang"., meaning 'wool', and καυλός, Script error: No such module "lang"., meaning 'stalk'.[3]
Description
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.
Distribution and habitat
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 approximately 10 species in the United States, mostly in the southern states from California to Florida, and only two species in Canada; China 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 and Ireland;[4] 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.[5]
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.[6] Some species can persist as buried seeds during unfavorable conditions.[7]
Selected species
Script error: No such module "Labelled list hatnote". As of May 2026, 496 species are accepted.[2] The names below were sourced from official sources including: the Flora of North America,[8] the Flora of China,[9] currently accepted Australian taxa from the Australian Plant Name Index,[1] etc..
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- Eriocaulon achiton
- Eriocaulon acutibracteatum
- Eriocaulon aethiopicum
- Eriocaulon albocapitatum
- Eriocaulon aloefolium Template:Au – Qld, Australia
- Eriocaulon alpestre
- Eriocaulon angustulum
- Eriocaulon anshiense
- Eriocaulon apetalum
- Eriocaulon aquaticum Template:Au – n. Europe & e. North America
- Eriocaulon asteroides
- Eriocaulon athertonense Template:Au – Qld, Australia
- Eriocaulon atrum
- Eriocaulon australasicum Template:Au – SA, NSW, Vic, Australia
- Eriocaulon australe Template:Au – Cambodia, China, W Malaysia, Thailand, Vietnam, NT, Qld, NSW, Australia, Pacific Islands
- Eriocaulon balakrishnanii
- Eriocaulon bamendae
- Eriocaulon baramaticum
- Eriocaulon barbeyanum
- Eriocaulon benthamii
- Eriocaulon bifistulosum Template:Au – Qld, Australia
- Eriocaulon bolei
- Eriocaulon brevipedunculatum
- Eriocaulon breviscapum
- Eriocaulon brownianum
- Eriocaulon buergerianum
- Eriocaulon carpentariae Template:Au – NT, Qld, Australia
- Eriocaulon carsonii Template:Au – SA, Qld, NSW, Australia
- subsp. carsonii – SA, Qld, NSW, Australia
- subsp. euloense Template:Au – Qld, Australia
- subsp. orientale Template:Au – Qld, Australia
- Eriocaulon cauliferum Makino(1910) - Japan
- Eriocaulon chinorossicum
- Eriocaulon cinereum Template:Au – WA, NT, Qld, Australia
- Eriocaulon clarksonii Template:Au – Qld, Australia
- Eriocaulon compressum
- Eriocaulon concretum Template:Au – WA, NT, Qld, Australia
- Eriocaulon conicum
- Eriocaulon cookei
- Eriocaulon cuspidatum
- Eriocaulon dalzellii
- Eriocaulon decangulare
- Eriocaulon decemflorum
- Eriocaulon depressum Template:Au – NT, Qld, Australia
- Eriocaulon dictyophyllum
- Eriocaulon dregei
- Eriocaulon duthiei
- Eriocaulon echinulatum
- Eriocaulon elenorae
- Eriocaulon ermeiense
- Eriocaulon eurypeplon
- Eriocaulon exsertum
- Eriocaulon faberi
- Eriocaulon fistulosum Template:Au – WA, NT, Qld, Australia
- Eriocaulon fluviatile
- Eriocaulon fysonii
- Eriocaulon giganticum Template:Au – Qld, Australia
- Eriocaulon glabripetalum
- Eriocaulon gregatum
- Eriocaulon henryanum
- Eriocaulon heterolepis
- Eriocaulon hookerianum
- Eriocaulon hydrophilum
- Eriocaulon inapertum Template:Au – WA, NT, Australia
- Eriocaulon inyangense
- Eriocaulon kanarense
- Eriocaulon karaavalense
- Eriocaulon karnatakense
- Eriocaulon kathmanduense
- Eriocaulon koernickianum
- Eriocaulon kolhapurense
- Eriocaulon konkanense
- Eriocaulon koynense
- Eriocaulon kunmingense
- Eriocaulon lanceolatum
- Eriocaulon leianthum
- Eriocaulon leptophyllum
- Eriocaulon leucomelas
- Eriocaulon lineare
- Eriocaulon lividum Template:Au – Australia
- Eriocaulon longicuspe
- Eriocaulon longifolium
- Eriocaulon longipetalum
- Eriocaulon luzulifolium
- Eriocaulon madayiparense[10]
- Eriocaulon maharashtrense
- Eriocaulon mangshanense
- Eriocaulon margaretae
- Eriocaulon mbalensis
- Eriocaulon meiklei
- Eriocaulon meenachilense Anoop & Robi[11]
- Eriocaulon microcephalum
- Eriocaulon minimum
- Eriocaulon minusculum
- Eriocaulon minutum
- Eriocaulon miquelianum
- Eriocaulon monoscapum Template:Au – NT, Australia
- Eriocaulon nantoense
- Eriocaulon nanum Template:Au – Qld, Australia
- Eriocaulon nematophyllum Template:Au – NT, Qld, Australia
- Eriocaulon nepalense
- Eriocaulon nigrobracteatum
- Eriocaulon obclavatum
- Eriocaulon odontospermum Template:Au – WA, NT, Qld, Australia
- Eriocaulon odoratum
- Eriocaulon oryzetorum
- Eriocaulon pallidum Template:Au – Qld, Australia
- Eriocaulon parkeri
- Eriocaulon parviflorum
- Eriocaulon parvulum
- Eriocaulon parvum
- Eriocaulon patericola Template:Au – WA, NT, Australia
- Eriocaulon pectinatum
- Eriocaulon peninsulare
- Eriocaulon pusillum Template:Au – WA, NT, Qld, Australia
- Eriocaulon pygmaeum Template:Au – WA, NT, Qld, Australia
- Eriocaulon quinquangulare
- Eriocaulon ratnagiricum
- Eriocaulon ravenelii
- Eriocaulon richardianum
- Eriocaulon ritchieanum
- Eriocaulon robustius
- Eriocaulon robustobrownianum
- Eriocaulon robustum
- Eriocaulon rockianum
- Eriocaulon rouxianum
- Eriocaulon sahyadricum
- Eriocaulon santapaui
- Eriocaulon scariosum Template:Au – Qld, NSW, ACT, Vic., Australia
- Eriocaulon schimperi
- Eriocaulon schlechteri
- Eriocaulon schochianum
- Eriocaulon schultzii Template:Au – NT, Australia
- Eriocaulon sclerophyllum
- Eriocaulon scullionii Template:Au – WA, NT, Australia
- Eriocaulon sedgwickii
- Eriocaulon selousii
- Eriocaulon setaceum Template:Au – Bangladesh, Cambodia, China, India, Indonesia, Japan, Laos, Myanmar, Sri Lanka, Thailand, Vietnam, WA, NT, Qld, Australia
- Eriocaulon sexangulare
- Eriocaulon sharmae
- Eriocaulon sivarajanii
- Eriocaulon sollyanum
- Eriocaulon spectabile Template:Au – WA, NT, Qld, Australia
- Eriocaulon staintonii
- Eriocaulon stellulatum
- Eriocaulon stipantepalum
- Eriocaulon taishanense
- Eriocaulon talbotii
- Eriocaulon texense
- Eriocaulon thwaitesii
- Eriocaulon tonkinense
- Eriocaulon tortuosum Template:Au – WA, NT, Qld, Australia
- Eriocaulon tricornum Template:Au – NT, Australia
- Eriocaulon trisectoides
- Eriocaulon truncatum Template:Au – Qld, Australia, Asia
- Eriocaulon tuberiferum
- Eriocaulon vandaanamensis
- Eriocaulon viride
- Eriocaulon wightianum
- Eriocaulon willdenovianum Template:Au – NT, Qld, Australia
- Eriocaulon xeranthemum
- Eriocaulon zollingerianum Template:Au – China, India, Indonesia, Laos, Malaysia, New Guinea, Philippines, Thailand, Vietnam, NT, Qld, Australia
- Species accepted by the authoritative Australian Plant Census, informally named, described and published awaiting formal publication
- Eriocaulon sp. C Kimberley Flora (G.J.Keighery 4610) WA Herbarium – WA, Australia
- Eriocaulon sp. E Kimberley Flora (A.S.George 12635) WA Herbarium – WA, Australia
- Eriocaulon sp. G Kimberley Flora (K.F.Kenneally 11374E) WA Herbarium – WA, Australia
- Eriocaulon sp. Harding Range (M.D.Barrett & R.L.Barrett MDB 1826) WA Herbarium – WA, Australia
- Eriocaulon sp. Theda (M.D.Barrett MDB 2063) WA Herbarium – WA, Australia
References
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- ^ a b Page Module:Citation/CS1/styles.css has no content."Eriocaulon%". Australian Plant Name Index (APNI), Integrated Botanical Information System (IBIS) database (listing by % wildcard matching of all taxa relevant to Australia). Centre for Plant Biodiversity Research, Australian Government. Archived from the original on 26 March 2022. Retrieved 20 June 2013.
- ^ a b c Page Module:Citation/CS1/styles.css has no content."Eriocaulon L." Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 30 May 2026.
- ^ Page Module:Citation/CS1/styles.css has no content.Kaul, Robert (2006), "Eriocaulon", Flora of North America, vol. 22, New York & Oxford: Oxford University Press
- ^ Sculthorpe, C. D. The Biology of Aquatic Vascular Plants. Edward Arnold. London. 1967. Reprinted 1985. Figure 11.6.
- ^ Page Module:Citation/CS1/styles.css has no content.Kaul, Robert (1966), "Eriocaulaceae of continental North America north of Mexico", Sida, 2: 285–332
- ^ Wilson, S. D. and P. A. Keddy. 1986. Species competitive ability and position along a natural stress/disturbance gradient. Ecology 67:1236-1242.
- ^ Keddy, P. A. and A. A. Reznicek. 1982. The role of seed banks in the persistence of Ontario's coastal plain flora. American Journal of Botany 69:13-22.
- ^ Page Module:Citation/CS1/styles.css has no content."Eriocaulon". Flora of North America. Retrieved 20 June 2013.
- ^ Page Module:Citation/CS1/styles.css has no content."Eriocaulon". Flora of China. Retrieved 20 June 2013.
- ^ Eriocaulon madayiparense.
- ^ Page Module:Citation/CS1/styles.css has no content.P Balan, Anoop; Aloor Jose, Robi (2021-03-09). "Eriocaulon Meenachilense, A New Tuberous Species of Eriocaulaceae from the Southern Western Ghats, India". Edinburgh Journal of Botany. 78: 1–8. doi:10.24823/EJB.2021.336. ISSN 1474-0036.
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