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Published In: Conspectus Plantarum circa Charcoviam et in Ucrania sponte cresentium et vulgo cultarum 8. 1859. (Consp. Pl. Charc.) Name publication detail

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
Flower/Fruit: Fl. Per.: March-May.
Type: Type: Described from Asia.
Distribution: Distribution: Probably wild in C. Asia (Asiatic origin) ; cultivated extensively and introduced in most parts of the world. Often found as an escape from cultivation.
Comment/Acknowledgements: Some authors recognize three varieties, glabrous, sparsely hispid, and hispid (Blatter in J. Bombay Nat. Hist. Soc., 34 (3) : 299, 1930) which are of doubtful taxonomic value, as it is impossible to draw a definite line between these indumen¬tum characters and their constancy. Much honey is collected by insects from its flowers and seeds are oil producing (both fatty oil and volatile “mustard” oil.
Photo: Brassica juncea (L.) Czern. (Photo)
Map Location: B-7 Hazara, Kaghan, Inayat 19204 (K) ; B-8 Kashmir, Islamabad, Fuller 883 (K) ; Dangian, Sultan & Qaiser 9257 (KUH) ; C-7 Rawalpindi, Aitchison 320 (K) ; without locality, Royle s.n. (K) ; Edgeworth s.n. (K) ; Rawalpindi, R. R. Stewart 19369 (RAW) ; D-4 Quetta, Duthie 8595 (BM) ; D-8 Lahore, Thomson s.n. (K) ; F-5 Khair¬pur, Setharja, plants c. 8 ft. tall, cult., fls. yellow, 13.1.56,Jafri 1195 (KUH); F-4 Dadu, Manchhar lake, cult., 22.1.69, Faruqi & Sultan 300 (KUH) ; G-4 Karachi, PCSIR, garden, cult., 24.2.71. Sultanul Abedin 5757 (KUH).


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Erect annual, 30-90 (-200) cm tall, branched, + sparsely hairy below, glabrous above, with simple hairs. Lower leaves distinctly stalked, lyrate-pinnati¬fid, 2-3-jugate; margin irregularly and coarsely dentate; middle leaves ± simple, oblong-ovate, dentate; upper leaves oblong-linear, acute, narrowed at the base into a short stalk, entire or subentire. Racemes 20-40-flowered, lax, increasing up to 30 cm in fruit. Flowers c. 7 mm across, golden yellow; pedicel 5-8 mm long, increasing up to 15 mm in fruit, glabrous, ascending. Sepals 4-6 mm long, 1-1.5 mm broad, oblong, subequal, apex rounded or obtuse, yellowish, glabrous. Petals 6-9 mm long, 2.5-3 mm broad, obovate, clawed, apex rounded. Stamens 4-6:5-8 mm long; anthers about 2 mm long, obtuse with apex often curved. Siliquae 25-50 mm long, 2-3 mm broad, linear, subtetragonous, suberect, + torulose, narrowed into a 5-10 mm long seedless beak, glabrous; valve with a prominent mid-rib, yello¬wish; style 1.5-2.5 mm long with a short stigma; septum white, membranous. Seeds 10-20 in each locule, c. 1 mm in diam., globose, reddish-brown.
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