Gahnia aspera

Rough Saw-sedge

Family:            Cyperaceae

Plant:              A tufted sedge up to 60cm high.

Flowers:         Red-brown to dark brown spikelets 6-8mm long in globular clusters in a narrow, erect, branched inflorescence, 10-35cm long on stout stems (culms).         

Flowering:      Irregularly throughout the year.

Fruit:               Shiny, yellow to dark red-brown nut, 4-6mm long with a distinct point.

Leaves:          In basal tufts, strap like, 65cm long and longer than the flower stems. The leaves have sharp serrated margins and are scabrous on the back. The branches are subtended by leafy bracts.

Habitat:           Common on creek banks and in swampy areas in rainforest and wet and dry sclerophyll forest.

Features:       Found in drier areas. Mature fruit dark red-brown. Leaves much longer that the flowering stems. Leaves scabrous on back.

Name:

Gahnia            After the Swedish botanist Dr. Henry Gahn

Aspera            From Latin = rough (referring to the spikelet plumes)

Search Criteria

 

Type

Sedge/Rush

Flowers

Form

Irregular, Globular, Cluster,

 

Colour(s)

Red, Rust

 

Petal/Sepal No.

-

 

Flowering Month

1, 2, 3, 4, 5, 6, 7,

 

 

8, 9, 10, 11, 12

Fruit

Type       

Other      

 

Colour

Yellow, Red, Brown

 

Other Features

Hard

Leaves

Arrangement

Basal, Tufted

 

Type       

Simple

 

Shape

Linear, Strap-like

 

Length    

Very long

 

Margins  

Toothed/Serrated

 

Attachment

Unstalked

 

Other Features

Rough

Bark

-

Habitat    

Rainforest, Wet sclerophyll forest,

 

Dry sclerophyll forest