Digitaria from the Latin 'digitus' meaning finger, alluding to the digitate inflorescence. Brownii named after Robert Brown (1773-1858), a Scottish botanist and palaeobotanist who made important contributions to botany largely through his pioneering use of the microscope and accompany Matthew Flinders' expedition to Australia.
Distribution and status
Found across much of South Australia, growing in a variety of habitats. Also found in all mainland states. Native. Common in South Australia. Rare in Victoria. Common in the other states.
Herbarium regions: North Western, Lake Eyre, Gairdner-Torrens, Flinders Ranges, Eastern, Eyre Peninsula, Murray, Southern Lofty
NRM regions: Adelaide and Mount Lofty Ranges, Alinytjara Wilurara, Eyre Peninsula, South Australian Arid Lands, South Australian Murray-Darling Basin
AVH map: SA distribution map (external link)
Perennial grass with erect stems 50 cm high. Leaf blades narrow, flaccid, ligule oblong, glabrous, torn, to 2 mm long. Flower-spike racemes 1-4, often 2, sessile, erect, at or near the summit of the slender stems, to10 cm long, spikelets silky-white or purple, on unequal pedicels along the zig-zag rhachis; first glume minute; second glume and first (sterile) lemma equal, villous on the back, the second glume 3-nerved, the first lemma 5-nerved; second (fertile) lemma nearly as long, smooth. Flowers sporadically throughout the year. Fruits are compact, purple-brown fruit-spike. Seeds are brown ovoid seed to 2 mm long and 1 mm wide, shiny and smooth surface. Seed embryo type is lateral.
Seed collection and propagation
Collect seeds between January and December. Use hands to gently strip seeds off the mature seed spike that are turning purple-brownr. Mature seeds will come off easily. Alternatively, you can break off the whole seed spike. Place the seeds/spike in a tray and leave to dry for two weeks. No further cleaning is required if only seed collected. If seed spikes collected, use hand to strip off the mature seeds. Store the seeds with a desiccant such as dried silica beads or dry rice, in an air tight container in a cool and dry place. From one collection, the seed viability was high, at 100%.
|Location||No. of seeds|
|6,900 (4.6 g)|
6,900 (4.6 g)