16 CRUCIFERZ. 
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Erysimum repandum, L. The Treacle Mustard. A native of Europt: 
North Africa, and part of Asia. A larger and stouter, more branche 
plant, with longer beaked pods. Suppression is possible on cultivated 
ground by similar treatment to that of charlock, but spraying is of little or 
no use. The prevention of seeding and the destruction of seedlings 76 
imperative. Older plants should be pulled up, piled and burnt before 
flowering. Unlike the charlock, this plant is especially dangerous 4s a 
weed on permanent pastures, spreading into pasture land and over al 
waste and uncultivated places. 
Proclaimed for the Shire of Wimmera. ; 
Nasturtium officinale, Scop. Water Cress. A native of Europe, Asia, 
and Africa introduced about sixty years ago, and common in many streams 
and water-courses, which it tends to choke up, especially if the bottom 1s 
muddy and the stream not too rapid. The plant has a considerable food 
value as a green salad, and is of especial use for correcting the effects of 
too meaty a diet. It is a perennial, freely rooting at the joints. 
Lepidium Draba, L. Hoary Cress. A native of Europe, Asia, and 
Africa. This weed, like so many others, was introduced from Europe 
with impure agricultural seed, and also with ballast and fodder, and 1s 
especially troublesome in lucerne paddocks. It is a perennial with deeply 
penetrating roots, pieces of which will continue to grow. It has clusters 
of small whitish flowers and small short flattened pods with one seed in 
each cell. It is a prolific seed-bearer, and altogether is a difficult plant to 
eradicate. It would be a great nuisance in orchards. Summer fallowing, 
deep ploughing, and frequent stirring, followed by root crops, will large! 
suppress it, but cutting or hoeing, unless often repeated, is of little value, 
since the roots contain much stored food, penetrate deeply, and quick: 
form new shoots. 
Fortunately, so far, it is not abundant outside of the places to which 
it has been introduced, mainly with impure seed, but it appears to be 
spreading. 
L. sativum, L., is the garden Cress, and the native Z. ruderale, L., is 
common on roadsides and waste places. JZ. campestre, Ait., the Pepper 
Wort, has not as yet spread to any extent, and being an annual or biennial 
is not so much to be dreaded as Z. Draba. 
Senebiera Coronopus, Poir., a native of Europe, Asia, and Africa, and 
SS. didyma, Pers., a native of America, Swine’s Cress, are introduced 
weeds, but are practically of no importance. The latter has been reported 
as poisonous to stock, but on quite false grounds, although its fodder value 
is sere S. Coronopus has been used as a salad cress, but is of little 
value. 
Sisymbrium officinale, Scop. Hedge Mustard. This is a native of 
Europe, probably introduced from Tasmania, and now fairly common 
and widely spread, especially in waste places and by roadsides. It is a 
rather small annual without any specially objectionable qualities, and 
though of no use’ and a freely seeding plant, is easily kept under. SS. 
Columna, a large biennial plant with much longer spreading pods, has ap- 
peared around Dimboola as an introduced weed, and is likely to become 
troublesome if neglected. 
Raphanus Raphanistrum, L. The Wild Radish or Jointed Charlock 
(distinguished by its jointed pod). A native of Europe, Asia, and Africa. 
Tt does not appear to be common as yet, although capable of becoming a 
troublesome agricultural weed, and during 1908 it was spread far and wide 
with imported lucerne seed. It is similar to charlock in its general 
