Rapistrum rugosum
Citation:
All., Fl. Ped. 1:257 (1785).
Synonymy: Myagrum rugosum L., Sp. Pl. 640 (1753).
Common name: Short-fruited wild turnip, turnip weed, wild turnip, giant mustard.
Description:
Annual or biennial herbs, branched, erect, 15-60 (rarely to 90) cm tall, hispid, glaucous; lower leaves lyrate-pinnatifid, with irregular to coarse dentate margins, to 25 cm long, petiolate; cauline leaves reducing.
Sepals 2.5-3 mm long; petals 5-10 mm long, yellow, dark-veined.
Silicula 5-10 mm long, indehiscent, articulating between the segments; lower segment cylindrical, 2.3-3.3 mm long, c. 1.3 mm wide; upper segment 3-6 mm long, 3-4 mm wide, rugose, ribbed; beak narrow, conical, 1-3 mm long; seeds dimorphic; upper seed ovoid, c. 2 mm long; lower seed small, aborted or absent.
| Rapistrum rugosum
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Image source: fig 220a in Jessop J.P. & Toelken H.R. (Ed.) 1986. Flora of South Australia (4th edn).
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Published illustration:
Orchard, (1946) d. Dept Agric. S. Aust. 50:179; Hewson (1982) Fl. Aust. 8:fig. 47F-G; Cunningham et al. (1982) Plants of western New South Wales, p. 330.
Distribution:
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The plant is a troublesome weed of agriculture and roadsides.
Qld; N.S.W.; Vic.; Tas. native to the Mediterranean.
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Conservation status:
naturalised
Flowering time: Sept. — Dec.
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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
Author:
Not yet available
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