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Haloragis odontocarpa
Citation:
F. Muell., Fragm. Phyt. Aust. 1:108 (1859).
Synonymy: Not Applicable Common name: Mulga spinach, mulga cabbage, mulga nettle, toothed raspwort.
Description:
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.
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Distribution:
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Found throughout semi-arid mainland Australia.
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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
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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:
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1. Fruit 4-angled or -ribbed longitudinally between the sepals, not winged |
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2. Body of the fruit with tooth-like appendages 1-1.5 mm long projecting below the sepals |
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forma odontocarpa 10a. |
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2. Body of the fruit smooth or rugose below the sepals |
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forma rugosa 10d. |
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1. Fruit 4-winged longitudinally between the sepals |
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forma pterocarpa 10c. |
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3. Wings constricted in the centre |
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forma octoforma 10b. |
Author:
Not yet available
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