Plants of
South Australia
Acrotriche halmaturina
Epacridaceae
Kangaroo Island Ground-berry
Display all 12 images
Regional Species Conservation Assessments per IBRA subregion.
Least concern
Near threatened
Rare
Vulnerable
Endangered
Critically endangered
Extinct
Data deficient
Adelaide
Arkaroola
Ceduna
Coober Pedy
Hawker
Innamincka
Marla
Marree
Mount Gambier
Oodnadatta
Renmark
Wudinna
Keith
Yunta
Enlarge Map
Copy Map
Copy Map
Display IBRA region text

Etymology

Acrotriche from the Greek 'akron' meaning summit and 'thrix' meaning hair, alluding to the tuft of hairs at the tip of the corolla lobes. Halmaturina is derived from Halmaturus, a generic name once applied to kangaroos, from the Greek 'halme' meaning a 'leap or bound', commonly used for species from Kangaroo Island.

Distribution and status

Endemic to South Australia and found only on lateritic soil on the western side of Kangaroo Island. Native. Uncommon in South Australia.
Herbarium region: Kangaroo Island
NRM region: Kangaroo Island
AVH map: SA distribution map (external link)

Plant description

Small shrub to 30 cm high, with the stems below the ground surface. Young branches red-brown and older stems grey. Leaves ovate to ovate-lanceolate to 12mm long and 4mm wide with a pointed tip and an obtuse base, upper surface scabrous to hispid, lower surface glaucous with white scale-like hairs between the veins and sparsely hairy. Flowers in small clusters at the base of the plant, appearing between August and September. Fruits are fleshy dark-red, sparsely hairy, globular fruit to 4.5 mm diameter. Seeds are woody, pale-brown, globular to 4 mm long and 4 mm wide. Seed embryo type is linear underdeveloped.

Seed collection and propagation

Collect seeds between October and December. Lift branches carefully to locate the fruits at the base of the plant. Fruit may sometime by buried just below the ground. Collect berries that are ripe, dark-red flesh with a hard seed inside. Place the berries in a bucket of water and rub the flesh off with your hands. Drain the water and wash again if required to remove all the flesh. Then spread the wet seeds on some paper towel and leave to dry. 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 can be average to high for this species. This species is generally difficult to germinate, it has morpho-physiological dormancy and complex germination requirements.

Seeds stored:
  Hide
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA31814-Dec-2006Gosse Road
Kangaroo Island
1-Jan-2012N/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.