Queensland Native Seeds

Crotalaria mitchellii subsp. mitchellii

Scientific NameCrotalaria mitchellii subsp. mitchellii
CategoriesForbNitrogen Fixer
Common Name(s)Yellow Rattlepod
FamilyFabaceae, Subfamily Faboideae

Description

 "Erect perennial shrub, c. 1 m high;..." (PlantNet)

Notes

Crotalaria mitchellii has two subspecies; Crotalaria mitchellii subsp. mitchellii and Crotalaria mitchellii subsp. laevis and both have similar distributions. Whilst both taxa occur on light-textured soils, the subsp. laevis has been known to grow on heavier basaltic soils.

Crotalaria mitchellii subsp. mitchellii has relatively broad leaves, 2-5cm across, and the stems are pubescent.

Nitrogen fixing forbs such as Crotalaria species are potentially very useful in rehabilitation projects though currently very difficult to obtain. In many cases wild stands are under pressure and removing their seed may be unhelpful to the cause of conservation. In our area are several previous herbarium sampling sites where Crotalaria mitchellii has been outcompeted by Eragrostis curvula (African Lovegrass) and other weeds on granitic soils.

We are testing the culture of such plants, including Crotalaria, for seed production. In this manner appropriate forms can be selected from desireable sites, edaphic factors all considered, and parent stocks can be otherwsie left undisturbed to continue living and reproducing in their wild habitats.

Historical Notes

Distribution

From Newcastle in New South Wales, to Port Douglas in northern Queensland. Occurs inland also reaching west to Tambo in Queensland.

Distribution Map | Crotalaria mitchellii subsp. mitchellii | Queensland Native Seeds

Crotalaria mitchellii subsp. mitchellii | inflorescence | Queensland Native Seeds
Crotalaria mitchellii subsp. mitchellii | inflorescence, fruit | Queensland Native Seeds
Crotalaria mitchellii subsp. mitchellii | microscope | Queensland Native Seeds

References and Related Links

PlantNET (The NSW Plant Information Network System). Royal Botanic Gardens and Domain Trust, Sydney. http://plantnet.rbgsyd.nsw.gov.au [Accessed: Jan 22, 2021]

https://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Crotalaria~mitchellii

Stanley, T.D. and Ross, E.M. (1983). Flora of south-eastern Queensland, Vol. 1, Queensland Department of Primary Industries, Brisbane. p. 275, Crotalaria mitchellii.