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Gonocarpus humilis

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Gonocarpus humilis
File:Gonocarpus humilis.jpg
Gonocarpus humilis - Key to Tasmanian Vascular Plants
Data deficient
Scientific classification
Kingdom:
Order:
Family:
Genus:
Species:
G. Humilis
File:Gonocarpus Humilis Distribution.png
Atlas of living Australia Gonocarpus Humilis Distribution


Gonocarpus humilis is a common small Herb in the Haloragaceae, or watermilfoil family. Widespread down the east coast of Australia within moist locations in shaded positions. [1] Common names include Shade Raspwort. Leaves have a rough and scabrous surface as indicated in the common name raspwort. [2]

Description

A variable monoecious perennial herb to 50cm tall. [1] Ranges from erect to prostrate or semiprotrate, with stems up to 70cm.[2] Stems are ribbed, hairy or rough with spreading hairs that are warty at the base. Flowers are Yellow-green, with 4 hooded petals and stamens each, 0.8–1.5 mm long. Leaves are opposite and decussate with toothed margins 10–20 mm long, 5–12 mm wide and shortly petiolate with a scabrous surface.[3] The fruit is a silver-grey to purplish nut, oval in shape 1–1.5 mm long. It has 8 ribs with two to three hard protrusions between them. [4]

Distribution

Wide spread down the east coast of Australia, occurs in Queensland, New South Wales, Victoria, South Australia and Tasmania. Also occurs in Kangaroo Island. [5]

Habitat

Commonly found throughout a variety of habitats in moist or boggy patches in shady locations. [6] Habitat is variable depending on location within the country, it is primarily found in coastal regions in most states, accept for Tasmania and Victoria where it is widespread, occurring from the coast through to inland regions. [7] [8]

Distinguishing from similar species

Commonly mistaken for G. tetragynus it can be distinguished primarily from by inflorescence, the flowers are alternate and sparse, bracts are also smaller and distinctly different from the leaves. Its habit is also lax rather than erect .[9] [10] It also has four stamens instead of 8 and lacks white-appraised hairs. [11] Site moisture can also be an indicator, G. teucrioides prefers dryer conditions.

Cultivation

Rarely found in cultivation. [12]


References

  1. ^ "Flora of Victoria". vicflora.rbg.vic.gov.au. Retrieved 2023-03-27.
  2. ^ "Fact sheet for Gonocarpus humilis". www.flora.sa.gov.au. Retrieved 2023-03-27.
  3. ^ "PlantNET - FloraOnline". plantnet.rbgsyd.nsw.gov.au. Retrieved 2023-03-27.
  4. ^ "Gonocarpus humilis". apps.lucidcentral.org. Retrieved 2023-03-27.
  5. ^ Australia, Atlas of Living. "Species: Gonocarpus humilis (Shade Raspwort)". bie.ala.org.au. Retrieved 2023-03-27.
  6. ^ "Yarra Ranges Local Plant Directory". www.yarraranges.vic.gov.au. Retrieved 2023-03-26.
  7. ^ "PlantNET - FloraOnline". plantnet.rbgsyd.nsw.gov.au. Retrieved 2023-03-26.
  8. ^ Australia, Atlas of Living. "Species: Gonocarpus humilis (Shade Raspwort)". bie.ala.org.au. Retrieved 2023-03-27.
  9. ^ "Key to Tasmanian Dicots". www.utas.edu.au. Retrieved 2023-03-27.
  10. ^ "Flora of Victoria". vicflora.rbg.vic.gov.au. Retrieved 2023-03-27.
  11. ^ Bässler, M. (October 1987). "George, A. S. (ed.), Flora of Australia. Vol. 4. Phytolaccaceae to Chenopodiaceae. X + 354 pp., 56 fig., 459 maps. Australian Government Publishing Service, Canberra, 12 Nov 1984. $ A 25.— George, A. S. (ed.), Flora of Australia. Vol. 46. Iridaceae to Dioscoreaceae. XII + 247 pp., 51 fig., 246 maps. Australian Government Publishing Service, Canberra, 1986. Soft cover edition $ A 26.—, casebound edition $A 30.—". Feddes Repertorium. 98 (9–10): 548–549. doi:10.1002/fedr.4910980912. ISSN 0014-8962.
  12. ^ "SGAP". apswarrnambool.org.au. Retrieved 2023-03-27.

https://bie.ala.org.au/species/https://id.biodiversity.org.au/node/apni/2920955#

https://www.utas.edu.au/dicotkey/dicotkey/Halorag/sGonocarpus_humilis.htm

https://vicflora.rbg.vic.gov.au/flora/taxon/8e417dd9-13e9-42ec-b1b2-e73c6f6b3042