Seeds of South Australia
Beyeria opaca (Euphorbiaceae)
Dark Turpentine Bush
List of species for Beyeria
Display more images
Click on an image to enlarge it
Seed collecting:
December to January
Herbarium regions:
Nullarbor, Gairdner-Torrens, Eyre Peninsula, Murray, Yorke Peninsula
NRM regions:
Alinytjara Wilurara, Eyre Peninsula, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin
IBRA regions
SUMMARY
Olary Spur (FLB03)Flinders Lofty Block
 Endangered   (IUCN: EN B2ab(i,ii,iii))   (Definite Decline)
St Vincent (EYB02)Eyre Yorke Block
 Critically Endangered   (IUCN: CR B2ab(i,ii,iii); D)   (Definite Decline)
Eyre Hills (EYB03) 
 Rare   (IUCN: RA d(ii))
Talia (EYB04) 
 Rare   (IUCN: RA d(ii))
Eyre Mallee (EYB05) 
 Least Concern   [mallee species]
South Olary Plain (MDD01)Murray Darling Depression
 Least Concern
Murray Mallee (MDD02) 
 Least Concern
Lowan Mallee (MDD04) 
 Near Threatened
Braemer (MDD07) 
 Endangered   (IUCN: EN B2ab(i,ii,iii))   (Definite Decline)
Murray Scroll Belt (RIV06)Riverina
 Near Threatened   (Probable Decline)
Myall Plains (GAW01)Gawler
 Rare   (IUCN: RA d(i,ii))
Gawler Volcanics (GAW02) 
 Near Threatened
Maralinga (GVD03)Great Victoria Desert
 Rare   (IUCN: RA d(i,ii))
Yellabinna (GVD06) 
 Least Concern
Nullarbor Plain (NUL02)Nullarbor
 Rare   (IUCN: RA d(i,ii))
Yalata (NUL03) 
 Rare   (IUCN: RA d(i,ii))
IBRA regions
DISPLAY ALL
Olary Spur (FLB03)Flinders Lofty BlockEndangered
  (IUCN: EN B2ab(i,ii,iii))   (Definite Decline)
4 of 5 subregionsEyre Yorke BlockLeast Concern
, Rare
, Critically Endangered
4 of 6 subregionsMurray Darling DepressionLeast Concern
, Near Threatened
, Endangered
Murray Scroll Belt (RIV06)RiverinaNear Threatened
  (Probable Decline)
2 of 8 subregionsGawlerNear Threatened
, Rare
2 of 4 subregionsGreat Victoria DesertLeast Concern
, Rare
2 of 3 subregionsNullarborRare
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 Beyeria]
Name derivation:
Beyeria named after the Rudoft Beyer (1852-1932), a Dutch cryptogamist. Opaca from the Latin 'opacas' meaning shady, dark.
Distribution:
Found in the central part of South Australia from Maralinga in the west to the Murray River, growing in dune mallee communities often on calcereous red earths. Also found in Western Australia, New South Wales and Victoria.
Status:
Native. Common in South Australia. Rare in Western Australia. Common in the other states.
Plant description:
Small sticky dioecious shrub to 1 m high with slender branches and yellowish green branchlets at first, turning dark grey. Leaves oblong to cuneate to 15 mm long and 3 mm wide, glabrous, glossy green above, paler below. Flowers solitary, axillary and/or terminal on short shoots. Male sepals yellow to brown, female sepals greenish and shorter. Flowering between June and November.
Fruit type:
Dark green ovoid capsule to 6 mm long containing 2 seed.
Seed type:
Mottle brown ovoid seed oblong to 6 mm long and 4 mm wide, topped by a yellow fleshy aril.
Embryo type:
Spatulate.
Seed collecting:
Collect maturing capsules, fat, green and contain dark, hard seed.
Seed cleaning:
Place the capsules in a tray and leave to dry for a week or two. Then gently rub the capsules with a rubber bung to dislodge the seeds. Use a sieves to separate the unwanted material. 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.
Seed viability:
Seed viability can be variable and seeds are prone to predation.
Seed germination:
This species is generally difficult to germinate, it has morphophysiological dormancy and complex germination requirement.