Ontario-Lawn-Weed-Identification

7/27/2019 Ontario-Lawn-Weed-Identification

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Common Ontario Lawn Weeds

Black Medic

Dark green with spreading square stems and three leaflets

– often confused with clover but black medic does not

have a white V mark in the center of each leaflet. Bright

yellow flowers cluster.

Buckhorn Plantain

It has long narrow leaves with prominent parallel veins

running the length of the leaf.

Canada Thistle

Forms dense patches. eaves are smooth! green on the

upper side of the leaf and on the bottom of the leaf it has

spiny margins. Flowers are lavender.

Clover

"lover is recogni#able by its dark green color of its three

leaflets with a white V mark in the center of each leaflet.

$he flowers can be white or pinkish in color.

Common Mallow

%allow sends out stems that trail along the ground like

&round Ivy. eaves are kidney shaped and are found on

long stems.

Crabgrass

$here are two types of crabgrass' arge and (mooth. Both

types are yellow green in colour and have wide leaf blades

that taper to a point at the end. "rabgrass produces purpleseed heads when the plant matures.

(ource' )rofessional awn "are *ssociation of +ntario

http',,www.plcao.on.ca,customer$ips-weeds.html



Dandelion

Identifiable by its agged leaves and large yellow blossoms

which mature into white puffballs full of seeds.

Ground Iv

$he leaves appear opposite each other on square shaped

stems. * distinguishing feature of this weed is that when

you crush its stem or leaves it has a very strong mint/like

odor. Flowers are purplish blue and are trumpet shaped.

!notweed

(tems form from a thin! tough! wiry! deep penetrating

taproot. $iny white flowers are not noticeable and are

found between the leaf and stem. 0notweed prefers

compacted soil 1e.g. on football fields2.

O"alis

It has 3 pale green leaflets that are heart shaped and

similar to clover. Flowers are small and have 4 yellow

petals. *s the flowers mature a cucumber shaped seedpod

forms. 5hen the seedpod is completely dry! the slightest

touch will cause the seeds to be scattered over several feet.

Plantain #$ t%es&

eaves are large! rounded! dull green and are from 36 to

76 in length. (eeds are compressed along more than half

the length of 46 to 896 stalks. $here are two types of

plantain' 82 :ugel;s )lantain which has a purplish color to

the stems and the leaves are green! <2 "ommon )lantain

has a short pale green stem and the leaves are covered

with short! rough hairs.

Purslane

$he sprawling stems are thick! round! fleshy and are

reddish brown in color. eaves are bright green! wedge

shaped! rubbery and thick. )urslane has tiny yellow flower

with 4 petals.



'uackgrass

$he leaf blade is broader! grows faster! taller and is a

lighter green in colour than the rest of your lawn.

=uackgrass can give your lawn an uneven appearance. It

produces seed heads from >une to (eptember.

(%eedwell

$here are many types of (peedwell that can grow in your

lawn. (ome are annual that reproduce from seed and

others are perennial that can reproduce by seed! rhi#omes

or creeping stems. $he perennial plants are generally more

difficult to control.

(%otted (%urge

eaves vary in color from a reddish green to a dark green

but usually have a purplish brown ?splotch6 near the

middle of the leaf. Flowers are tiny! pinkish white and are

hard to see. +ne way to identify spotted spurge is by

breaking the stems or branches and a milk like liquid

comes out.

)iolets

$here are two types of violets commonly found on lawns'

field violets and sweet violets. $heir heart shaped leaves

and their white! yellow or purple flowers distinguish them.

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Ontario-Lawn-Weed-Identification