Alexfloydia is a genus of perennial stoloniferous grasses in the panic grass subfamily of the Poaceae grass family.[1][2]
| Alexfloydia | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Poaceae |
| Subfamily: | Panicoideae |
| Supertribe: | Panicodae |
| Tribe: | Paniceae |
| Subtribe: | Cenchrinae |
| Genus: | Alexfloydia B.K.Simon |
| Species: | A. repens
|
| Binomial name | |
| Alexfloydia repens | |
This genus is endemic to coastal eastern New South Wales in Australia.
There is one known species, Alexfloydia repens.[3] This genus was named in honour of the species discoverer, Australian botanist Alexander Floyd (1926-2022).[4][5]
Habitat and distribution edit
Alexfloydia repens is a spreading, mat-forming grass found on the margins of brackish and tidal waterways in areas flooded by unusually high tides (called "king tides").[6] The species forms a groundcover associated with the tree species Casuarina glauca and the Endangered Ecological Community Swamp Oak Floodplain Forest. Currently this grass is known only from a few locations in the Coffs Harbour region.
Status edit
This species is listed as Endangered on the schedules of the NSW Threatened Species Act.[7]
Ecology edit
Alexfloydia repens is the sole larval food plant for the endangered Black grass-dart butterfly (Ocybadistes knightorum) (Lambkin & Donaldson, 1994).[8]
See also edit
References edit
- ^ Watson L, Dallwitz MJ. (2008). "The grass genera of the world: descriptions, illustrations, identification, and information retrieval; including synonyms, morphology, anatomy, physiology, phytochemistry, cytology, classification, pathogens, world and local distribution, and references". The Grass Genera of the World. Retrieved 2009-08-19.
- ^ Simon, B.K. 1992. Studies in Australian grasses 6. Alexfloydia, Cliffordiochloa and Dallwatsonia, three new panicoid grass genera from Eastern Australia. Austrobaileya 3:669-681.
- ^ "Alexfloydia". The Grass Genera of the World. Archived from the original on 14 May 2008. Retrieved 2008-04-02.
- ^ "Alexander G. Floyd (1926 - 2022)". Australian National Herbarium. Retrieved 2008-04-02.
- ^ Atlas of Living Australia, Alexfloydia B.K.Simon
- ^ Tidal Variations — The Influence of Position and Distance NOAA ocean service education
- ^ "Black grass-dart butterfly - endangered species listing". Department of Environment & Climate Change (NSW). Archived from the original on 2006-09-07. Retrieved 2008-04-02.
- ^ "Alexfloydia repens (a grass) - endangered species listing". Department of Environment & Climate Change (NSW). Retrieved 2008-04-02.