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Triglochium palustris BotGartBln310505.JPG
Triglochin palustris
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
Order: Alismatales
Family: Juncaginaceae
Genus: Triglochin
  • Juncago Ség.
  • Lilaea Bonpl.
  • Tristemon Raf. 1819 not Raf. 1838 (Juncaceae) nor Klotzsch 1838 (Ericaceae) nor Scheele 1848 (Cucurbitaceae)[1]
  • Abbotia Raf.
  • Heterostylus Hook.
  • Hexaglochin Nieuwl.

Triglochin is a genus in the family Juncaginaceae described as a genus by Linnaeus in 1753.[3][4] It is very nearly cosmopolitan in distribution, with species on every continent except Antarctica. North America has four accepted species, two of which can also be found in Europe: Triglochin palustris (marsh arrowgrass) and Triglochin maritima (sea arrowgrass).[5][6] Australia has many more.[2][7]

The most widely used common name for the genus is arrowgrass, although these plants are not really grasses. Many of the common names for species make use of the term "arrowgrass", although there are exceptions: T. procera, for example, is commonly known as water ribbons.

Arrowgrasses are used as food plants by the larvae of some Lepidoptera species including Grey Chi.

formerly included

now in other genera: Bulbine Cycnogeton Tetroncium

  1. Triglochin alcockiae - Cycnogeton alcockiae - Australia
  2. Triglochin dubia - Cycnogeton dubium - Australia, New Guinea
  3. Triglochin huegelii - Cycnogeton huegelii - Western Australia
  4. Triglochin linearis - Cycnogeton lineare - Western Australia
  5. Triglochin magellanica - Tetroncium magellanicum - Tierra del Fuego, Falkland Is, Gough I
  6. Triglochin maundii - Maundia triglochinoides - Australia
  7. Triglochin microtuberosa - Cycnogeton microtuberosum - Australia
  8. Triglochin multifructa - Cycnogeton multifructum - Australia
  9. Triglochin procera - Cycnogeton procerum - Australia
  10. Triglochin pterocarpa - Cycnogeton dubium - Australia, New Guinea
  11. Triglochin racemosa - Bulbine semibarbata - Australia
  12. Triglochin reflexa - Tetroncium magellanicum - Tierra del Fuego, Falkland Is, Gough I
  13. Triglochin rheophila - Cycnogeton rheophilum - Australia
  14. Triglochin triglochinoides - Maundia triglochinoides - Australia


External links[edit]