Vegetation Management and Maintenance Plan - Watsonville ...
Vegetation Management and Maintenance Plan - Watsonville ...
Vegetation Management and Maintenance Plan - Watsonville ...
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WILD MUSTARD<br />
Brassica ssp.<br />
DISTINCTIVE FEATURES Wild mustards grow as annual or biennial<br />
herbs. The lower leaves are deeply lobed; the upper leaves are<br />
toothed, often on short stalks. <strong>Plan</strong>ts typically grow 1- 3 feet tall.<br />
BLOOMS Yellow, in terminal clusters; flowers are 4-petaled,<br />
February - May.<br />
PREFERRED HABITAT Bare ground, road/trail edges <strong>and</strong> previously<br />
disturbed areas. Spreads rapidly from seed.<br />
ITALIAN THISTLE<br />
C. pycnocephalus<br />
SLENDER-FLOWERED THISTLE<br />
C. tenuiflorus<br />
DISTINCTIVE FEATURES These thistles have winged stems, are<br />
very spiny, <strong>and</strong> have many-branched stems. They grow as annual or<br />
biennial herbs from a basal rosette of spiny leaves. The leaves are<br />
deeply lobed; the undersides are slightly to very woolly. <strong>Plan</strong>ts typically<br />
grow 1- 4 feet tall (Italian thistles can reach 6.5 feet). Rosette is<br />
evident in fall <strong>and</strong> spring, distinguished by thorny patch with leaves<br />
that have a white midrib (center rib).<br />
BLOOMS Pink to purple in cylindrical heads, with either single or<br />
multiple flowers, May - August.<br />
PREFERRED HABITAT Bare ground, road/trail edges <strong>and</strong> previously<br />
disturbed areas. Often spreads rapidly <strong>and</strong> forms dense st<strong>and</strong>s<br />
by chemically inhibiting the growth of other plants (allelopathy).
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