Why are monocots typically more successful as weedsSolutiong
Why are monocots typically more successful as weeds?
Solution
grasses and sedges are 2 main groups in monocots weeds
Cyperaceae (sedges):
b)a.Leaves lack ligules and auricles.
b.Leaf sheaths are continuous around the stem.
c.Stem in several species is triangular in cross section with solid internodes.
c)d .Flowers in spikelets with glumes not petals.
d)e.wind pollinated,
e)f. fruit a nut, which is often triangular.
Poaceae [Gramineae] (grasses). :
a)The largest, most important and widespread family of flowering plants and many important weeds.
b)they are herbs with hollow cylindrical stems.
c)Leaves alternate with a pronounced sheath around the stem.
d)withligules in many species.
e)Flowers in spikelets with two sterile bracts (glumes) at the base,
f)plus abaxial and adaxial bracts (lemmas and paleas) on each fertile floret.
g)There are no petals.
h) pollination is by wind.
i)The seed is a caryopsis enclosed in a series of bracts.
Because above characteristics , they are successful as weeds
