Seeds of South Australia
Oreomyrrhis eriopoda (Umbelliferae)
Australian Carraway
List of species for Oreomyrrhis
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Seed collecting:
November to February
Herbarium regions:
Southern Lofty, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, South East
IBRA regions
Bridgewater (NCP01)Naracoorte Coastal Plain
 Critically Endangered   (IUCN: CR B2ab(i,ii,iii); D)   (Probable Decline)
Glenelg Plain (NCP02) 
 Vulnerable   (IUCN: VU D2)
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Endangered   (IUCN: EN B2ab(i,ii,iii))   (Probable Decline)   [known in Mt Bold & Wottons Scrub; weeds a threat]
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 Oreomyrrhis]
Name derivation:
Oreomyrrhis from the Greek 'oreos' meaning mountain and 'myrrhis' the fragrant European herb known botanically as Myrrhis odorata, and in England as sweet ciceley or myrrh; alluding to the genus habitat and similarity to the genus Myrrhis. Eriopoda from the Greek 'erion' meaning wool and 'podos' meaning foot or woolly stalk; alluding to the species woolly flower stalk.
Distribution:
Found only in two areas in South Australia, the southern Mount Lofty Ranges and the lower South-east, growing in grassland, open heath and woodland communities. Also found in New South Wales, Victoria and Tasmania.
Status:
Native. Endangered in South Australia. This endangered herb is only known from two locations in the Adelaide & Mount Lofty Ranges region. The SA Seed Bank collected more than 10,000 seeds for a population in the Kangarilla area with the support of the AMLR NRM.
Plant description:
An erect perennial herb that dies off and re-shoots each year. Leaves are basal and are deeply lobed, similar to carrot leaves. Flowers are small and white in a cluster at the end of a long stalk. Flowering between September and November.
Fruit type:
Large brown seed-head at the terminal of stems with numerous seeds.
Seed type:
Dark brown cylindrical seeds to 6 mm long and 1 mm wide, with a number of ridges across its coat. One end is narrower than the other a bit like a bottle.
Embryo type:
Linear under-developed.
Seed collecting:
Pick mature seeds off the seed-heads, usually these are dark brown and will come off easily.
Seed cleaning:
Minimal cleaning required if only the seeds are collected from the seed-heads. 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:
From six collections, the seed viability were high, ranging from 90% to 100%.
Seed germination:
Seeds are non-dormant, viable seed should germinate readily.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
1536+1600 (3.84+4.02 g)
3790 (9.45 g)
>10026-Jan-2005DJD 101
Southern Lofty
28-Mar-200695%-18°C
BGA1420 (2.56 g)30-405-Dec-2006DJD714
South Eastern
1-Aug-2007100%+5°C, -18°C
BGA420 (1.03 g)100+1-Dec-2006DJD604
Southern Lofty
1-Aug-2007100%-18°C
BGA3560 (8.21 g)70+5-Dec-2006DJD712
South Eastern
1-Aug-2007100%+5°C, -18°C
BGA28500 (55.45 g)50+4-Dec-2007TST243
Southern Lofty
19-Sep-2008100%+5°C, -18°C
BGA5500 (9.61 g)50+9-Feb-2010Thomas Gully
Southern Lofty
Jun-201090%-18°C
Thomas Gully1-Jan-2012+5°C, -18°C
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.
Germination table:
DateResultT0T50Pre-treatment | Germination medium | Incubator: Photoperiod / Thermoperiod
Feb-09100%21 d21 d
1% agar with 100 mg/L potassium nitrate;
Incubated under spring/autumn conditions
Feb-09100%21 d28 d
1% agar;
Incubated under spring/autumn conditions
Jun-1797%2121
1% agar;
Incubated under winter conditions
Feb-1094%13 d21 d
1% agar;
Incubated under spring/autumn conditions
Jul-1793%2121
1% agar;
Incubated under spring/autumn conditions
Feb-1086%13 d21 d
1% agar with 250 mg/L gibberellic acid (pH 6.5);
Incubated under spring/autumn conditions
Jun-0584%20 d30 d
filter paper over moist sponge;
Incubated under winter conditions
Result: Maximum percentage of germination observed.
T0: Number of days before first germinant observed.
T50: Number of days to achieve 50% germination.
Pre-treatment: The initial treatment that the seeds received prior to placement on germination media.
Germination medium: The substrate that seeds were placed on for the duration of the germination experiment.
Incubator conditions:
Photoperiod: The duration of light exposure that the seeds were subject to during a 24 hour period.
Thermoperiod: The constant or diurnal temperatures that seeds were subject to during a 24 hour period.
Winter conditions: 15°C 20 h (3am→11pm); 5°C 4 h (11pm→3am) / 10 h light (8am→6pm); 14 h dark (6pm→8am)
Spring/Autumn conditions: 22°C 12 h (8am→8pm); 10°C 12 h (8pm→8am) / 12 h light (8am→8pm); 12 h dark (8pm→8am)
Summer conditions: 30°C 14 h (6am→8pm); 15°C 10 h (8pm→6am) / 14 h light (6am→8pm); 10 h dark (8pm→6am)