Electronic Flora of South Australia
Electronic Flora of South Australia
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Electronic Flora of South Australia species Fact Sheet

Haloragis odontocarpa

Citation: F. Muell., Fragm. Phyt. Aust. 1:108 (1859).

Synonymy: Not Applicable

Common name: Mulga spinach, mulga cabbage, mulga nettle, toothed raspwort.

Annual herb 10-100 cm tall; tap root present; stems smooth, pilose with soft transparent 6-8-celled hairs 0.4-1 mm long on younger parts, glabrous below; leaves alternate (lowermost sometimes subopposite), on petioles to 20 mm long, ovate, 45-60 (rarely 80) mm long, 7-25 mm wide, with 10-15 (sometimes to 30) prominent blunt teeth, pilose on both surfaces.

Inflorescence composed of 3-7- (rarely to 15-) flowered dichasia; bracts green, linear, 3-6.5 mm long, 0.8-2 mm wide, entire or serrate; bracteoles brown, membranous, linear, 0.6-0.7 mm long; flowers 4-merous, on pedicels 0.2-0.5 mm long; sepals deltoid, 0.6-1 mm long; petals yellow-green, 2-2.6 mm long; stamens 8; anthers linear-oblong, 1.8-2.2 mm long; styles 4, reddish, 0.3-0.4 mm long; ovary ovoid, 0.4-0.5 mm long, weakly 4-angled, densely pilose.

Fruits 1-3 (sometimes 5) per axil, on pedicels to 2 mm long, 4-winged or -ribbed, variously ornamented, 4-locular.

Published illustration: Orchard (in press) Fl. Aust. 18.

Distribution:  Found throughout semi-arid mainland Australia.

Conservation status: native

Flowering time: No flowering time is available

SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia

Biology: No text

Taxonomic notes: The fruits are very variable in ornamentation even within a single population, although uniform on each plant. This variation can be broadly categorised as 4 forms:

Key to Infraspecific taxa:
1. Fruit 4-angled or -ribbed longitudinally between the sepals, not winged
2. Body of the fruit with tooth-like appendages 1-1.5 mm long projecting below the sepals
forma odontocarpa 10a.
2. Body of the fruit smooth or rugose below the sepals
forma rugosa 10d.
1. Fruit 4-winged longitudinally between the sepals
3. Wings entire, oblong
forma pterocarpa 10c.
3. Wings constricted in the centre
forma octoforma 10b.

Author: Not yet available

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