WILD FLOWERS OF THE BRITISH ISLES 
the terminal lobe the largest (lyrate), sometimes hairy, and the upper leaves narrowly lance-shaped, 
entire, clasping the stem with rounded, projecting lobes. The whole plant has a bluish bloom 
(glaucous). This species is the parent of our cultivated Turnip. \Plate 13. 
Very common. Cultivated and waste ground. May — August. Annual or biennial. 
Isle of Man Cabbage. Dwarf Wallflower-Cabbage. (Brassiea monensis, Huds.) 
— Flowers bright lemon-yellow, veined, rather large, f inch across. Pod about 2 inches long, 
with a long thick beak which usually contains 1-3 seeds. [As described in the genus Cabbage, 
&c. (Brassiea)]. Stems 6-12 inches high, the leaves all deeply divided to the mid-rib almost into 
separate leaflets, the lobes of the root (radical) leaves being short and broad, and those of the 
stem very narrow (linear). 
Rare, local. Sandy sea-shores on the west coast. June — August. Biennial. 
Jersey Cabbage. (Brassiea Cheiranthus, Vill.) — A similar species, but taller and 
more hairy. 
Very rare. On sandy sea-shores in the Channel Isles and Cornwall. June — August. Biennial. 
Black Mustard. (Brassiea Sinapioides, Roth.) — Flowers inch across, yellow, with 
spreading sepals. Pods § inch long, erect, pressed to the stalk, 4-sided, the beak short and 
pointed. [As described in the genus Cabbage, Mustard, &c. (Brassiea).] Stem 1-3 feet high, 
hairy, branched ; the lower leaves large, rough, lobed to the midrib, the terminal lobe being the 
largest (lyrately pinnatifid) and the upper stalked, narrowly lance-shaped, entire, and without 
hairs. The whole plant is of a dark green. This plant is cultivated for its seeds, which yield our 
table mustard. 
Fairly common. Waste and cultivated ground. June — August. Annual. 
Hoary Mustard. (Brassiea adpressa, Boiss.) — A very similar species to the Black 
Mustard (Brassiea Sinapioides), but having shorter pods and less deeply lobed leaves. 
Rare. Sandy sea-shores in the Channel Isles. July — August. Biennial. 
Wild Mustard, Charlock. (Brassiea Sinapistrum, Boiss.)— Flowers £-£ inch across, 
bright lemon-yellow. [As described in the genus Cabbage, Mustard, &c. (Brassiea).] Pods 1-2 
inches long, ascending, constricted, angular, beaked, more than one-third of the length being 
occupied by the beak, which often contains one seed at the base. Stem 1-2 feet high, with a few 
stiff hairs, branched ; the leaves rough with short hairs, oval or oblong, the lower ones lobed 
towards the mid-rib, with the terminal lobe the largest (lyrately pinnatifid) and the upper stalked, 
oval, and toothed. \Plate 13. 
Very common. Waste and cultivated ground. May — August. Annual. 
White Mustard. (Brassiea alba, Boiss.)— A similar plant, with the flowers \ inch 
across, yellow, the pods spreading, hairy, f-i inch long, more than half being occupied by a 
stout flattened beak, often curved, and the leaves all stalked and deeply lobed to the midrib 
(pinnatifid). This is the mustard of cultivation, seedlings being eaten as salad with Common 
Cress (Lepidium sativum). 
Common. Waste ground. June — July. Annual. 
ROCKET. (DIPLOTAXIS, DC.)— A very similar genus to the last, and frequently united with 
it, differing in the pods being flatter and in the seeds being in 2 rows in both cells. 
Wall Rocket. (Diplotaxis tenuifolia, DC.)— Flowers 3 inch across, lemon-yellow, 
sweet-scented, in a short cluster which lengthens in fruit. Pods i-i£ inches long, narrow, erect, 
flattened, tipped by the round style ^ inch long. Stems 1-3 feet high, tender, leafy ; all the 
