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Erucastrum arabicum [family BRASSICACEAE]

Date Updated: 19 August 2007

Herbarium
South African National Biodiversity Institute, Compton Herbarium, Cape Town (SAM)
Collection
Flora of Southern Africa
Resource Type
Reference Sources
Entry From
Flora of South Africa, (2003) Author: Dr J.P. Roux
Names
Erucastrum arabicum [family BRASSICACEAE]
Common names
Brassica schimperi Boiss. in Ann. Sci. Nat. Bot. ser. 2, 17 : 86 (1842), nom. illegit. Types as above. B. arabica (Fisch. & Mey.) Fiori in Nuovo G. Bot. ltd. n.s. 19 : 445 (1912). E. arabicum var. schimperi O.E. Schulz, I.e. 97 (1919), nom. illegit. Types as for E. arabicum Fisch. & Mey.
Information
Annual herbs up to 65 cm tall, simple or branched in the upper part. Stems strigose with reflexed hairs, glabrescent. Lower leaves petiolate, lyrate-pinnatipartite, 3-4-jugate with short broad lateral lobes and a ± ovate terminal lobe, margin ± repand-dentate, sparsely hispid. Upper leaves at their base broad or amplexicaul, ovate-elliptic or ovate-lanceolate with 1 or 2 pairs of small triangular lobes or irregularly dentate, sparsely hispid. Racemes lax in fruit, the lower pedicels usually subtended by bracts. Sepals 3-3 • 5 mm long, linear-oblong, glabrous or puberulous. Petals 4-6 mm long, oblanceolate-spathulate to narrowly obovate, long clawed. Siliquae 1-5-4-5 cm long, 1-3-1-5 mm in diameter, linear-oblong, ascending or spreading, on pedicels up to 0-7 (-1) cm long; valves 1-nerved, glabrous or sparsely puberulous, emarginate at the apex; beak 1-3 mm long, conical to stout cylindrical-subulate. Seeds 1-1-5 X 0-8-1-1 mm, compressed, brown, the seed-coat finely reticulate. Fig. 14:5.
Habitat
The flowers are whitish or pale yellow, sometimes faintly tinged with purple, and the flowering time is from January to March. Usually found under trees in shade, often on calcareous soils.
Use
3. Erucastrum arabicum Fisch. & Mey., Animadv.Bot in Index Quint. Sem. Petrop. 35(1839); O.E. Schulz in Pflanzenr. 4, 105,1: 96(1919); Exell in F.Z. 1: 189 (1960). Syn-types: Arabia, Schimper94l and Fischer 189.

Date Updated: 19 August 2007

Herbarium
South African National Biodiversity Institute, Compton Herbarium, Cape Town (SAM)
Collection
Flora of Southern Africa
Resource Type
Reference Sources
Entry From
Flora of South Africa, (2003) Author: Dr J.P. Roux
Names
Erucastrum arabicum [family BRASSICACEAE]
Common names
Brassica schimperi Boiss. in Ann. Sci. Nat. Bot. ser. 2, 17 : 86 (1842), nom. illegit. Types as above. B. arabica (Fisch. & Mey.) Fiori in Nuovo G. Bot. ltd. n.s. 19 : 445 (1912). E. arabicum var. schimperi O.E. Schulz, I.e. 97 (1919), nom. illegit. Types as for E. arabicum Fisch. & Mey.
Information
Annual herbs up to 65 cm tall, simple or branched in the upper part. Stems strigose with reflexed hairs, glabrescent. Lower leaves petiolate, lyrate-pinnatipartite, 3-4-jugate with short broad lateral lobes and a ± ovate terminal lobe, margin ± repand-dentate, sparsely hispid. Upper leaves at their base broad or amplexicaul, ovate-elliptic or ovate-lanceolate with 1 or 2 pairs of small triangular lobes or irregularly dentate, sparsely hispid. Racemes lax in fruit, the lower pedicels usually subtended by bracts. Sepals 3-3 • 5 mm long, linear-oblong, glabrous or puberulous. Petals 4-6 mm long, oblanceolate-spathulate to narrowly obovate, long clawed. Siliquae 1-5-4-5 cm long, 1-3-1-5 mm in diameter, linear-oblong, ascending or spreading, on pedicels up to 0-7 (-1) cm long; valves 1-nerved, glabrous or sparsely puberulous, emarginate at the apex; beak 1-3 mm long, conical to stout cylindrical-subulate. Seeds 1-1-5 X 0-8-1-1 mm, compressed, brown, the seed-coat finely reticulate. Fig. 14:5.
Habitat
The flowers are whitish or pale yellow, sometimes faintly tinged with purple, and the flowering time is from January to March. Usually found under trees in shade, often on calcareous soils.
Use
3. Erucastrum arabicum Fisch. & Mey., Animadv.Bot in Index Quint. Sem. Petrop. 35(1839); O.E. Schulz in Pflanzenr. 4, 105,1: 96(1919); Exell in F.Z. 1: 189 (1960). Syn-types: Arabia, Schimper94l and Fischer 189.
Erucastrum arabicum [family BRASSICACEAE]
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