Seeds of South Australia
Trachymene ceratocarpa (Umbelliferae)
Creeping Carrot
List of species for Trachymene
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Herbarium regions:
North Western, Lake Eyre, Nullarbor, Gairdner-Torrens, Eyre Peninsula
NRM regions:
Alinytjara Wilurara, Eyre Peninsula, South Australian Arid Lands
IBRA regions
Talia (EYB04)Eyre Yorke Block
 Rare   (IUCN: RA d(ii))   [edge of range]
Eyre Mallee (EYB05) 
 Rare   (IUCN: RA d(ii))   [edge of range]
Gawler Volcanics (GAW02)Gawler
 Rare   (IUCN: RA d(ii))   [edge of range]
Gawler Lakes (GAW03) 
 Rare   (IUCN: RA d(ii))   [edge of range]
Kingoonya (GAW05) 
 Least Concern
Maralinga (GVD03)Great Victoria Desert
 Least Concern   [red dunes, comes up after fire]
Yellabinna (GVD06) 
 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 Trachymene]
Name derivation:
Trachymene from the Greek 'trakhys' meaning rough and 'mene' meaning moon; alluding to the appearance of the fruit. Ceratocarpa from the Greek 'keras' meaning horn and 'karpos' meaning fruit; referring to the horn-like fruit
Found scattered in the western part of South Australia, growing on red or yellow soils in sand dunes. Also found in Western Australia, Northern Territory and New South Wales.
Native. Common in South Australia. Rare in the Northern Territory. Common in the other states.
Plant description:

Decumbent to erect annual herb to 15 cm high, stems glabrous or rarely with scattered hairs. Basal leaves circular-cordate, to 21 mm long, palmately divided into 3 obovate-cuneate lobed segments, sometimes further divided into 2 or 3 secondary lobes with petiole to 40 mm long. Stem leaves smaller, less divided, glabrous or with a few scattered hairs. Inflorescence in group of 3–5 on pedicels very short. Flowers blue or white. Sepals absent. Petals ovate, imbricate, not inflexed at apex.

Fruit laterally compressed, circular, 3–4 mm long, 6-ribbed on each side; apical appendage 3–5 mm long, horizontally spreading.

Seed type:
Seeds stored:
LocationNo. of seeds
(weight grams)
of plants
Collection number
Collection location
% ViabilityStorage
BGA3100 (11.01 g)3018-Sep-2009TST763
BGA4300 (8.37 g)30+16-Sep-2009TST743
Eyre Peninsula
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.