Description: Annual, ephemeral or perennial herbs, with bulbs or rhizomes.
Leaves all basal, semi-terete, ligulate or auriculate.
Inflorescence racemose or spicate. Flowers bisexual, 3-merous. Perianth segments 6, in 2 whorls, falling readily. Stamens 6. Carpels 6, sometimes 3 sterile, fused for various lengths, each 1-ovuled; stigmas equal to number of fertile carpels.
Individual fruit indehiscent, separating, mostly with carpophore.
Distribution and occurrence: World: c. 24 species, America & Australia. Australia: c. 12 species (1 naturalised), all States.
Text by S. W. L. Jacobs; updated Louisa Murray Feb 2017
Taxon concept: From - S. von Mering & J.W. Kadereit in O. Seberg et al. (eds), Diversity, Phylogeny, and Evolution in the Monocotyledons: 73 (2010)
| ||Key to the species|| |
|1||Perennials of more or less permanently aquatic habitats||Triglochin striata|
|Annuals or ephemerals of ephemerally wet habitats or damp ground||2|
|2||All carpels fertile; individual fruit cylindrical with a short conical summit; each carpel rounded on the back, with 2 short, spreading spurs at the base||Triglochin turrifera|
|Fertile carpels alternating with sterile ones; individual fruit tapered or angular, not cylindrical with a conical top; fertile carpels either keeled or winged, with or without basal spurs|
Back to 1
|3||Fruit about twice as long as wide; fertile carpels each with 2 angular wings and no basal spurs||Triglochin hexagona|
|Fruit more or less linear, tapering gradually towards apex; fertile carpels more or less keeled, wings absent, each with 2 basal not prominent spurs|
Back to 2
|4||Basal spurs on carpels incurved, conspicuous||Triglochin isingiana|
|Basal spurs on carpels straight, not prominent|
Back to 3