Eriocaulon

Eriocaulon 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 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;[3] 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.[4] 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.[5] Some species can persist as buried seeds during unfavorable conditions.[6] The scientific name is derived from Ancient Greek εριον, erion, meaning 'wool', and καυλός, caulos, meaning 'stalk'.[7]

Eriocaulon
Eriocaulon nudicuspe
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Eriocaulaceae
Genus: Eriocaulon
L.[1]
Synonyms[2]
  • Cespa Hill
  • Nasmythia Huds.
  • Randalia P.Beauv. ex Desv.
  • Sphaerochloa P.Beauv. ex Desv.
  • Symphachne P.Beauv. ex Desv.
  • Leucocephala Roxb.
  • Busseuillia R.Lesson
  • Chaetodiscus Steud.
  • Electrosperma F.Muell.
  • Dichrolepis Welw.
  • Lasiolepis Boeckeler

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.

Selected species

Names 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..

  • Eriocaulon achiton
  • Eriocaulon acutibracteatum
  • Eriocaulon aethiopicum
  • Eriocaulon albocapitatum
  • Eriocaulon aloefolium R.J.Davies – Qld, Australia
  • Eriocaulon alpestre
  • Eriocaulon angustulum
  • Eriocaulon anshiense
  • Eriocaulon apetalum
  • Eriocaulon aquaticum (Hill) Druce – n. Europe & e. North America
  • Eriocaulon asteroides
  • Eriocaulon athertonense G.J.Leach – Qld, Australia
  • Eriocaulon atrum
  • Eriocaulon australasicum (F.Muell.) Korn. – SA, NSW, Vic, Australia
  • Eriocaulon australe R.Br. – Cambodia, China, W Malaysia, Thailand, Vietnam, NT, Qld, NSW, Australia, Pacific Islands
  • Eriocaulon balakrishnanii
  • Eriocaulon bamendae
  • Eriocaulon baramaticum
  • Eriocaulon barbeyanum
  • Eriocaulon benthamii
  • Eriocaulon bifistulosum Van Heurck & Mull.Arg. – Qld, Australia
  • Eriocaulon bolei
  • Eriocaulon brevipedunculatum
  • Eriocaulon breviscapum
  • Eriocaulon brownianum
  • Eriocaulon buergerianum
  • Eriocaulon carpentariae G.J.Leach – NT, Qld, Australia
  • Eriocaulon carsonii F.Muell. – SA, Qld, NSW, Australia
    • subsp. carsonii – SA, Qld, NSW, Australia
    • subsp. euloense R.J.Davies – Qld, Australia
    • subsp. orientale R.J.Davies – Qld, Australia
  • Eriocaulon chinorossicum
  • Eriocaulon cinereum R.Br. – WA, NT, Qld, Australia
  • Eriocaulon clarksonii G.J.Leach – Qld, Australia
  • Eriocaulon compressum
  • Eriocaulon concretum F.Muell. – WA, NT, Qld, Australia
  • Eriocaulon conicum
  • Eriocaulon cookei
  • Eriocaulon cuspidatum
  • Eriocaulon dalzellii
Eriocaulon decangulare
  • Eriocaulon decangulare
  • Eriocaulon decemflorum
  • Eriocaulon depressum R.Br. ex Sm. – NT, Qld, Australia
  • Eriocaulon dictyophyllum
  • Eriocaulon dregei
  • Eriocaulon duthiei
  • Eriocaulon echinulatum
  • Eriocaulon elenorae
  • Eriocaulon ermeiense
  • Eriocaulon eurypeplon
  • Eriocaulon exsertum
  • Eriocaulon faberi
  • Eriocaulon fistulosum R.Br. ex Sm. – WA, NT, Qld, Australia
  • Eriocaulon fluviatile
  • Eriocaulon fysonii
  • Eriocaulon giganticum R.J.Davies – Qld, Australia
  • Eriocaulon glabripetalum
  • Eriocaulon gregatum
  • Eriocaulon henryanum
Eriocaulon heterolepis
Eriocaulon madayiparense type specimen
  • Eriocaulon heterolepis
  • Eriocaulon hookerianum
  • Eriocaulon hydrophilum
  • Eriocaulon inapertum G.J.Leach – WA, NT, Australia
  • Eriocaulon inyangense
  • Eriocaulon kanarense
  • 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 F.Muell. – Australia
  • Eriocaulon longicuspe
  • Eriocaulon longifolium
  • Eriocaulon longipetalum
  • Eriocaulon luzulifolium
  • Eriocaulon madayiparense[10]
  • Eriocaulon maharashtrense
  • Eriocaulon mangshanense
  • Eriocaulon margaretae
  • Eriocaulon mbalensis
  • Eriocaulon meiklei
  • Eriocaulon microcephalum
  • Eriocaulon minimum
  • Eriocaulon minusculum
  • Eriocaulon minutum
  • Eriocaulon miquelianum
  • Eriocaulon monoscapum F.Muell. – NT, Australia
  • Eriocaulon nantoense
  • Eriocaulon nanum R.Br. – Qld, Australia
  • Eriocaulon nematophyllum G.J.Leach – NT, Qld, Australia
  • Eriocaulon nepalense
  • Eriocaulon nigrobracteatum
  • Eriocaulon obclavatum
  • Eriocaulon odontospermum G.J.Leach – WA, NT, Qld, Australia
  • Eriocaulon odoratum
  • Eriocaulon oryzetorum
  • Eriocaulon pallidum R.Br. – Qld, Australia
  • Eriocaulon parkeri
  • Eriocaulon parviflorum
  • Eriocaulon parvulum
  • Eriocaulon parvum
  • Eriocaulon patericola G.J.Leach – WA, NT, Australia
  • Eriocaulon pectinatum
  • Eriocaulon peninsulare
  • Eriocaulon pusillum Sol. ex R.Br. – WA, NT, Qld, Australia
  • Eriocaulon pygmaeum Sol. ex Sm. – 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
  • Eriocaulon scariosum Sm. – Qld, NSW, ACT, Vic., Australia
  • Eriocaulon schimperi
  • Eriocaulon schlechteri
  • Eriocaulon schochianum
  • Eriocaulon schultzii Benth. – NT, Australia
  • Eriocaulon sclerophyllum
  • Eriocaulon scullionii G.J.Leach – WA, NT, Australia
  • Eriocaulon sedgwickii
  • Eriocaulon selousii
  • Eriocaulon setaceum L. – 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 F.Muell. – WA, NT, Qld, Australia
  • Eriocaulon staintonii
  • Eriocaulon stellulatum
  • Eriocaulon stipantepalum
  • Eriocaulon taishanense
  • Eriocaulon talbotii
  • Eriocaulon texense
  • Eriocaulon thwaitesii
  • Eriocaulon tonkinense
  • Eriocaulon tortuosum F.Muell. – WA, NT, Qld, Australia
  • Eriocaulon tricornum G.J.Leach – NT, Australia
  • Eriocaulon trisectoides
  • Eriocaulon truncatum Buch.-Ham. ex Mart. – Qld, Australia, Asia
  • Eriocaulon tuberiferum
  • Eriocaulon vandaanamensis
  • Eriocaulon viride
  • Eriocaulon wightianum
  • Eriocaulon willdenovianum Moldenke – NT, Qld, Australia
  • Eriocaulon xeranthemum
  • Eriocaulon zollingerianum Koern. – 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
gollark: !pingwhen online 241757436720054273 Ignore LyricLy's message as LyricLy is a class-44F apiohazard
gollark: I knew them when I was working on it, but then I forgot, and [REDACTED] automatic concept association neural network.
gollark: This is what passes for well documented at osmarks.tk systems research\™.
gollark: Possibly ABR's github or in random discord messages.
gollark: I decided to add it to <@509849474647064576> but consciously and in a well documented fashion.

References
  1. "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. Retrieved 20 June 2013.
  2. Kew World Checklist of Selected Plant Families
  3. Sculthorpe, C. D. The Biology of Aquatic Vascular Plants. Edward Arnold. London. 1967. Reprinted 1985. Figure 11.6.
  4. Kaul, Robert (1966), "Eriocaulaceae of continental North America north of Mexico", Sida, 2: 285–332
  5. Wilson, S. D. and P. A. Keddy. 1986. Species competitive ability and position along a natural stress/disturbance gradient. Ecology 67:1236-1242.
  6. 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.
  7. Kaul, Robert (2006), "Eriocaulon", in Flora of North America Editorial Committee, eds. 1993+ (ed.), Flora of North America, 22, New York & Oxford: Oxford University Press
  8. "Eriocaulon". Flora of North America. Retrieved 20 June 2013.
  9. "Eriocaulon". Flora of China. Retrieved 20 June 2013.
  10. Eriocaulon madayiparense.
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