PCA Weeds Actual Exam | High-Yield Questions &
Answers, Identification | Frequently Most Tested
Questions | 100% Accurate ,Expert Guarantee
Pass | Well Verified and Updated |Latest Exam
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Cotyledons
ANSWER:
first leaf or first pair of leaves produced by the embryo of a seed plant
First true leaf
ANSWER:
first leaves to emerge after cotyledons
Collar
ANSWER:
Region in grasses at the junction of the sheath and blade, often lighter colored
than surrounding tissue
Leaf blade
ANSWER:
flattened part of leaf
Node
ANSWER:
Meristematic point on a stem where one or more leaves arise
Internode
ANSWER:
Segment of plant between nodes
Leaf sheath
,ANSWER:
Basal portion of a leaf, wrapped around the stem above a node. Almost
exclusively monocots
Petiole
ANSWER:
The stalk of a leaf, which joins the leaf to a node of the stem.
Auricle
ANSWER:
Small lobe or ear-shaped appendage found at the base of the leaf blade of
grasses. Aids in seedling identification
Ligule
ANSWER:
A membranous or hairy structure on the inside of a leaf at the junction of the leaf
blade and sheath
Awn
ANSWER:
A bristlelike appendage in grasses, usually a continuation of the mid-vein of the
bracts surrounding the flower
Hypocotyl
ANSWER:
The stem derived from the portion of the embryo located between the
cotyledons and the radicle
Inflorescence
ANSWER:
cluster of flowers
Coleoptile
ANSWER:
,The covering of the young shoot of the embryo of a grass seed.
Tuber
ANSWER:
a swollen underground stem
Rhizome
ANSWER:
a horizontal, underground stem that produces new leaves, shoots, and roots
Stolon
ANSWER:
a horizontal branch from the base of plant that produces new plants from buds
at its tips
Bulbs
ANSWER:
the round parts of some plants that are underground
Recognize the key features used to identify grass seedlings
ANSWER:
Leaf blade, collar, ligule, sheath
Recognize the key features used to identify broadleaf seedlings
ANSWER:
Roots, leaf arrangement, leaf blade, leaf veins, cotyledons, true leaves
What weeds are poisonous to animals?
ANSWER:
Jimsonweed, Nightshades, Common groundsel, coast fiddleneck, yellow
starthistle
Identify types of vegetative propagules.
ANSWER:
Runners, suckers, stolons, buds, rhizomes, bulbs
, List of unique seed or vegetative growth structures that plants have which aid in
dispersal
ANSWER:
Plants with burs or spiked seeds that catch in animal fur, plants that disperse
their seed with tumbling plant parts, plants with seed that are pappus-bearing
for dispersal by wind,
plants which spread with vegetative propagules
plants that produce prolific small seed
Examples of plants with burs or spiked seeds that catch in animal fur
ANSWER:
Filaree, puncturevine, wild oat, foxtail barley, hare barley
Examples of plants that disperse their seed with tumbling plant parts
ANSWER:
Russian thistle
Examples of plants with seed that are pappus-bearing for dispersal by wind
ANSWER:
Hairy fleabane, common groundsel, cattails
Examples of plants which spread with vegetative propagules
ANSWER:
Johnsongrass, yellow nutsedge, field bindweed
Examples of plants that produce prolific small seed
ANSWER:
Purslane, pigweed, smallflower umbrella sedge
List information that should be recorded when monitoring for weeds.
ANSWER:
What weeds are present, where weeds are present, weather conditions, stage
of weed growth
List resources to assist in weed identification
ANSWER:
Answers, Identification | Frequently Most Tested
Questions | 100% Accurate ,Expert Guarantee
Pass | Well Verified and Updated |Latest Exam
and Brand new Version !!!!
Cotyledons
ANSWER:
first leaf or first pair of leaves produced by the embryo of a seed plant
First true leaf
ANSWER:
first leaves to emerge after cotyledons
Collar
ANSWER:
Region in grasses at the junction of the sheath and blade, often lighter colored
than surrounding tissue
Leaf blade
ANSWER:
flattened part of leaf
Node
ANSWER:
Meristematic point on a stem where one or more leaves arise
Internode
ANSWER:
Segment of plant between nodes
Leaf sheath
,ANSWER:
Basal portion of a leaf, wrapped around the stem above a node. Almost
exclusively monocots
Petiole
ANSWER:
The stalk of a leaf, which joins the leaf to a node of the stem.
Auricle
ANSWER:
Small lobe or ear-shaped appendage found at the base of the leaf blade of
grasses. Aids in seedling identification
Ligule
ANSWER:
A membranous or hairy structure on the inside of a leaf at the junction of the leaf
blade and sheath
Awn
ANSWER:
A bristlelike appendage in grasses, usually a continuation of the mid-vein of the
bracts surrounding the flower
Hypocotyl
ANSWER:
The stem derived from the portion of the embryo located between the
cotyledons and the radicle
Inflorescence
ANSWER:
cluster of flowers
Coleoptile
ANSWER:
,The covering of the young shoot of the embryo of a grass seed.
Tuber
ANSWER:
a swollen underground stem
Rhizome
ANSWER:
a horizontal, underground stem that produces new leaves, shoots, and roots
Stolon
ANSWER:
a horizontal branch from the base of plant that produces new plants from buds
at its tips
Bulbs
ANSWER:
the round parts of some plants that are underground
Recognize the key features used to identify grass seedlings
ANSWER:
Leaf blade, collar, ligule, sheath
Recognize the key features used to identify broadleaf seedlings
ANSWER:
Roots, leaf arrangement, leaf blade, leaf veins, cotyledons, true leaves
What weeds are poisonous to animals?
ANSWER:
Jimsonweed, Nightshades, Common groundsel, coast fiddleneck, yellow
starthistle
Identify types of vegetative propagules.
ANSWER:
Runners, suckers, stolons, buds, rhizomes, bulbs
, List of unique seed or vegetative growth structures that plants have which aid in
dispersal
ANSWER:
Plants with burs or spiked seeds that catch in animal fur, plants that disperse
their seed with tumbling plant parts, plants with seed that are pappus-bearing
for dispersal by wind,
plants which spread with vegetative propagules
plants that produce prolific small seed
Examples of plants with burs or spiked seeds that catch in animal fur
ANSWER:
Filaree, puncturevine, wild oat, foxtail barley, hare barley
Examples of plants that disperse their seed with tumbling plant parts
ANSWER:
Russian thistle
Examples of plants with seed that are pappus-bearing for dispersal by wind
ANSWER:
Hairy fleabane, common groundsel, cattails
Examples of plants which spread with vegetative propagules
ANSWER:
Johnsongrass, yellow nutsedge, field bindweed
Examples of plants that produce prolific small seed
ANSWER:
Purslane, pigweed, smallflower umbrella sedge
List information that should be recorded when monitoring for weeds.
ANSWER:
What weeds are present, where weeds are present, weather conditions, stage
of weed growth
List resources to assist in weed identification
ANSWER:
