Seeds of South Australia
Eucalyptus baxteri (Myrtaceae)
Brown Stringybark
List of species for Eucalyptus
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Seed collecting:
January to December
Herbarium regions:
Murray, Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Kangaroo Island, South Australian Murray-Darling Basin, South East
IBRA regions
Mount Gambier (SVP02)Southern Volcanic Plain
 Least Concern
Bridgewater (NCP01)Naracoorte Coastal Plain
 Least Concern   [hybridises with E arenacea in the north]
Glenelg Plain (NCP02) 
 Least Concern
Lucindale (NCP03) 
 Least Concern
Kangaroo Island (KAN01)Kanmantoo
 Least Concern   [widespread and stable]
Fleurieu (KAN02) 
 Least Concern   [climate change a threat]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Least Concern   [climate change a threat]
Murray Mallee (MDD02)Murray Darling Depression
 Rare   (IUCN: RA d(i,ii))   [lack of suitable habitat; edge of range; should be more records; vulnerable to nutrient runoffs; no reg. occurring; in roadside remnants]
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 Eucalyptus]
Name derivation:
Eucalyptus from the Greek 'eu' meaning well and 'calyptos' meaning covered; alluding to the cap or lid which covers the stamens in the bud. Baxteri named after William Baxter (1787-1836), an English gardener who collected in Australia on behalf of English nurserymen and private individuals, including the type specimen for this species in 1828. 
Distribution:
Found on Kangaroo Island, Mount Lofty Ranges and the South-eat in South Australia, growing on well-drained, sandy to gravelly soil of low fertility, in heathy scrub or woodland. Also found in New South Wales and Victoria.
Status:
Native. Common in South Australia. Uncommon in New South Wales. Common in Victoria.
Plant description:
Single-stemmed tree to 30 m high or multi-stemmed to 6 m high with rough, persistent, fibrous bark, brown weathering to grey throughout except the very smallest branches, becoming strongly ridged and furrowed on old trees, shedding to reveal a dark rich-brown furrowed layer below. Juvenile leaves elliptic to lanceolate, rough from numerous short branched hairs. Adult leaves to 8 cm long and 5 cm wide, very oblique, lanceolate to almost ovate, dark, glossy, green, leathery. Flowers in groups of 7-15 in leaf axils, lacking individual stalks. Buds to 10 mm long and 6 mm wide, ovoid, bud-cap cone-shaped to flattened, warty, shorter than the base. Inflorescences axillary clusters with 7-15 white flowers. Flowering between December and February.
Fruit type:
Woody round fruit to 12 mm long and 18 mm wide, stalk-less, disc broad, ascending, valves 3 or 4 slightly above the rim.
Seed type:
Dark brown to black irregularly pyramidal seed to 4 mm long and 2 mm wide, with angled sides and covered in fine wrinkles.
Embryo type:
Folded.
Seed collecting:
Collect mature fruits that are dark and hard (difficult to break with a finger nail), with the valves un-open any time of year.
Seed cleaning:
Leave the fruits in a breathable container in a dry room for one to two weeks. This allows the valves on the fruit to open and release the seeds. Separate the seeds by placing all the materials into a bucket and shaking it to dislodge the seeds. Pass the material through a sieve to separate the unwanted material. The finer material will contain both seeds (soft) and frass (hard) usually distinguishable from each other but can be very similar in shape and colour. With finer sieves, the seeds can be separated from the frass but this is not essential for storage or propagation. 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 one collection, the seed viability was average, at 65%.
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
4950 (31.25 g)
4950 (31.25 g)
40-5019-Oct-2005DJD150
Southern Lofty
8-Aug-200665%-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.