Seeds of South Australia
Bothriochloa ewartiana (Gramineae)
Desert Blue-grass
List of species for Bothriochloa
Click on an image to enlarge it
Seed collecting:
January to December
Herbarium regions:
North Western, Lake Eyre, Gairdner-Torrens, Flinders Ranges
NRM regions:
Alinytjara Wilurara, South Australian Arid Lands
IBRA regions
Northern Flinders (FLB05)Flinders Lofty Block
 Least Concern
Gawler Lakes (GAW03)Gawler
 Rare   (IUCN: RA d(ii))
Arcoona Plateau (GAW04) 
 Rare   (IUCN: RA d(ii))
Roxby (GAW07) 
 Near Threatened   [widespread but scattered]
Strzelecki Desert (SSD05)Simpson Strzelecki Dunefields
 Rare   (IUCN: RA d(ii))
Oodnadatta (STP02)Stony Plains
 Rare   (IUCN: RA d(ii))
Murnpeowie (STP03) 
 Near Threatened   [widespread but scattered]
Peake-Dennison Inlier (STP04) 
 Rare   (IUCN: RA d(ii))
Macumba (STP05) 
 Rare   (IUCN: RA d(ii))
Sturt Stony Desert (CHC02)Channel Country
 Least Concern
Lake Pure (CHC07) 
 Least Concern
Mann-Musgrave Block (CER01)Central Ranges
 Least Concern
RSCA map:
Regional Species Conservation Assessments per IBRA subregion. Please click the thumbnail map.
AVH map:
Australian distribution map (external link)
SA Census:
Census of South Australian plants (external link)     [genus Bothriochloa]
Name derivation:
Bothriochloa from the Greek 'bothrion' meaning little furrow or pit and 'chloe' meaning grass; referring to the distinctive discolored groove in the joints and pedicels. Ewartiana named after Alfred James Ewart (1872-1937), a British born botanist, plant collector, professor of Botany at the Melbourne University and botanist for the Victorian government.
Distribution:
Found scattered in the northern part of South Australia, growing in in dry woodland. Also found in Western Australia, Northern Territory, Queensland and New South Wales.
Status:
Native. Common in South Australia. Common in the other states.
Plant description:
Perennial grass with stiff, glabrous stems to 80 cm high with pubescent nodes. Leaves glabrous, flat, to 5 mm wide. Inflorescence racemes straw-coloured or purplish. Flowers throughout the year depending on rainfall.
Fruit type:
Fan-like spike at end of long stalk.
Seed type:
Yellow-brown grain to 2 mm long.
Embryo type:
Lateral.
Seed collecting:
Use hands to gently strip seeds off the mature seed spike that are turning straw colour or purplish. Mature seeds will come off easily. Alternatively, you can break off the whole seed spike.
Seed cleaning:
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.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA57 (0.04 g)114-Dec-2010KHB555
Flinders Ranges
1-Jan-2012NCT
Location: BGA — the seeds are stored at the Adelaide Botanic Gardens, MSB — the seeds are stored at the Millennium Seed Bank, Kew, England.
Number of plants: This is the number of plants from which the seeds were collected.
Collection location: The Herbarium of South Australia's region name.
% Viability: Percentage of filled healthy seeds determined by a cut test or x-ray.