Flashcards
Agron 217 Exam 3
Cards in this deck (100)
- 1—Asiatic Dayflower
(Annual)
Key ID: glossy leaves with parallel veins
Sheath wraps around the stem - 2—Yellow Nutsedge
(Perennial)
Key ID: Triangular stem, leaves at 120 degrees, glossy grass-like leaves
- 3—Wild Garlic
(Perennial)
Key ID: Round hollow leaves, aerial bulblets, garlic/oniony smell
- 4—Giant Foxtail
(Annual)
Family: Poaceae
Key ID: Hairy ligule, dense hairs on upper leaf surface
- 5—Yellow Foxtail
(Annual)
Family: Poaceae
Key ID: Hairy ligule, long hairs at base of leaf blade, then hairless
- 6—Green Foxtail
(Annual)
Family: Poaceae
Key ID: Hairy ligule, no hair on the upper leaf, the margin of the leaf has hairs
- 7—Woolly Cupgrass
(Annual)
Family: Poaceae
Key ID: First leaf parallel to soil, obtuse angle of leaves, one margin on the leaf rippled
- 8—Witchgrass
(Annual)
Family: Poaceae
Key ID: Leef sheath covered in dense stiff hairs, hairy on leaves both sides, broom head
- 9—Fall Panicum
(Annual)
Family: Poaceae
Key ID: Hairy ligule, glabrous leaf sheath, and blade, swollen nodes, light-colored midrib compared to green foxtail
- 10—Shattercane
(Annual)
Family: Poaceae
Key ID: Membranous ligule, leaf sheaths waxy, looks like corn
- 11—Barnyardgrass
(Annual)
Family: Poaceae
Key ID: Lack of ligule, hairless stem and sheath
- 12—Large Crabgrass
(Annual)
Family: Poaceae
Key ID: Membranous ligule, stiff hairs on blade and sheath
- 13—Goosegrass
(Annual)
Family: Poaceae
Key ID: Membranous ligule, flat stem, tillers are parallel to soil, white/silver at center
- 14—Downy Brome
(Annual)
Family: Poaceae
Key ID: Dense soft hair on leaf and stem, fused sheath (no overlap), twisted leaves
- 15—Longspine Sandbur
(Annual)
Family: Poaceae
Key ID: Leaves folded makes flat stem, hairy ligule
- 16—Annual Bluegrass
(Annual/Perennial)
Family: Poaceae
Key ID: Membranous ligule, leaf tips like a boat, light green, GH had crinkle
- 17—Foxtail Barley
(Perennial)
Family: Poaceae
Key ID: short membranous ligule, smooth sheaths and blades, bunch grass
- 18—Quackgrass
(Perennial)
Family: Poaceae
Key ID: Clasping auricles, membranous ligule, long internodes
- 19—Reed Canarygrass
(Perennial)
Family: Poaceae
Key ID: Tall stems, transparent ligule, rough leaf edges can cut, hairless
- 20—Nimblewill
(Perennial)
Family: Poaceae
Key ID: Short very narrow leaves, membranous ligules, distinct patches in lawns
- 21—Poison Hemlock
(Biennial)
Family: Apiaceae
Key ID: Hairless stem with purple spots, waxy bloom, dark green, compund leaf triangular
- 22—Wild Carrot
(Biennial)
Family: Apiaceae
Key ID: Leaves pinnate, lacy, stems hollow and hairy ribbed, single pruple flower in umbel, birds nest
- 23—WIld Parsnip
(Biennial)
Family: Apiaceae
Key ID: egg shaped leaflets, toothed margins, stem hollow and grooved, yellow umbel
- 24—Common Milkweed
(Perennial)
Family: Apocynaceae
Key ID: Erect stem, oblong leaves, milky sap, looks misty
- 25—Hemp Dogbane
(Perennial)
Family: Apocynaceae
Key ID: Opposite leaves, long stem, upper stem branched, ovate leaves 2"-3"
- 26—Poison Ivy
(Perennial)
Key ID: Leaves with three leaflets, irregular lobes, aerial roots
- 27—Common Lambsquarters
(Annual)
Family: Amaranthaceae
Key ID: Grayish leaves, irregular toothed leaves, white meely young leaves
- 28—Russian Thistle
(Annual)
Family: Amaranthaceae
Key ID: Bushy, needle-like leaves, ball-shaped when mature, "tumbleweed."
- 29—Kochia
(Annual)
Family: Amaranthaceae
Key ID: Alternate leaves hairy, often three prominent midveins, stems are round and redish
- 30—Waterhemp
(Annual)
Family: Amaranthaceae
Key ID: Hairless stems, glossy leaves, egg shaped coyledons
- 31—Palmer Amaranth
(Annual)
Family: Amaranthaceae
Key ID: Flatter leaves, long petioles, few or no hairs, more V-shaped
- 32—Redroot Pigweed
(Annual)
Family: Amaranthaceae
Key ID: Hairy stems, egg shaped leaves and red underside, wavy leaf margins, notched first leaf
- 33—Scouring Rush
(Perennial)
Key ID: segmented stems, pull apart at nodes, nodes have a gray band
- 34—Field Horsetail
(Perennial)
Key ID: Wiry, segmented stem, whorled branched modified leaves
- 35—Smilax
(Perennial)
Key ID: Parallel leaf veins, woody vine, spikey
- 36—Japanese Stiltgrass
(Annual)
Family: Poaceae
Key ID: Wide leaf comapred to grasses, lance shaped leaves, silver midvein
- 37—Honeyvine Milkweed
(Perennial)
Family: Apocynaceae
Key ID: Oppositely arranged leaves, white veins, heart shaped leaves
- 38—Giant Ragweed
(Annual)
Family: Asteraceae
Key ID: Deeply lobed and opposite leaves, rough stems and leaves, oval cotyledons
- 39—Common Burdock
(Biennial)
Family: Asteraceae
Key ID: rough leaves, wavy leaf edges, wooly underside
- 40—Musk Thistle
(Biennial)
Family: Asteraceae
Key ID: silver leaf margins look frosted, flower has bracts forming spikey wings, few haris
- 41—Bull Thistle
(Biennial)
Family: Asteraceae
Key ID: Lobes are narrow and tipped with a spine, hairy on both leaf sides, vase looking flower
- 42—Canada Thistle
(Perennial)
Family: Asteraceae
Key ID: Variable lobes, small flower head like bull thistle, patchy, looks slightly shiny
- 43—Horseweed/Marestail
(Annual)
Family: Asteraceae
Key ID: Hairy, linear leaves, lower leaves are toothed, pubescent stem
- 44—Prickly Lettuce
(Annual)
Family: Asteraceae
Key ID: Basal rosette, stiff bristles under midrib, milky sap in leaves and stem
- 45—Common Dandelion
(Perennial)
Family: Asteraceae
Key ID: Deeply toothed leaves, milky sap, yellow flowers, reddish midrib
- 46—Common Cocklebur
(Annual)
Family: Asteraceae
Key ID: Rough stem with dark spots, triangular leaves with irregular margins
- 47—Common Sunflower
(Annual)
Family: Asteraceae
Key ID: Rough stems and leaves, heart shaped leaves, long petioles
- 48—Hairy Galinsoga
(Annual)
Family: Asteraceae
Key ID: Branched with hairy stems and leaves, white ray flowers with gaps in between
- 49—Common Ragweed
(Annual)
Family: Asteraceae
Key ID: hairy stems and leaves, finely divided leaves,
- 50—Spiny Sowthistle
(Annual)
Family: Asteraceae
Key ID: glossy leaves, spiny rouded auricles, yellow flower (similar to dandelion)
- 51—Hedge Mustard
(Annual)
Family: Brassicaceae
Key ID: Hairy deeply lobed leaves, hairy stem, terminal yellow flowers
- 52—Field Pennycress
(Annual)
Family: Brassicaceae
Key ID: light green smooth leaves, slightly toothed margins, crush leaves for a garlicy odor, circular winged fruit
- 53—Garlic Mustard
(Biennial)
Family: Brassicaceae
Key ID: deep veins on coarsly teethed leaves, garlicy odor, white flowers
- 54—Shepards Purse
(Annual)
Family: Brassicaceae
Key ID: heart shaped/triangular fruit pods, deeply lobed leaves, four white petals for flowers
- 55—Common Chickweed
(Annual)
Key ID: opposite pointed leaves, easily crushed (frail), deeply notched white petals
- 56—Bush Honeysuckle
(Perennial)
Key ID: woody stems, opposite leaves, egg shaped leaves, whiteish pink flowers
- 57—Field Bindweed
(Perennial)
Family: Concolvulaceae
Key ID: twining viney stem, whithout distinct lobe, funnel shaped flowers
- 58—Ivyleaf/
Morningglory
(Annual)
Family: Convolvulacaeae
Key ID: twining vine, three deeply divided lobes on leaves, stems and petioles are hairy
- 59—Hedge Bindweed
(Perennial)
Family: Convolvulaceae
Key ID: base of leaf with distinct lobes, five pointed leaf compared to three on field bindweed
- 60—Dodder
(Annual)
Family: Convolvulaceae
Key ID: parasitic vine lacking chlorophyll, yellow and leafless
- 61—Burcucumber
(Annual)
Key ID: Vine with sticky stem and tendrils, pounted fruit and stiff bristles, shallow lobed leaves
- 62—Common Cutleaf/Teasel
(Perennial)
Key ID: bristly stem, spiny midrib, lancelike laves, dead flowers are spiny
- 63—Leafy Spurge
(Perennial)
Key ID: milky sap, lancelike leaves, erect and branching stems, leaves are alternately arranged
- 64—Prostrate Spruge
(Annual)
Key ID: milky sap, opposite arranged leaves, mat forming, oval shaped leaves with dark spot near center
- 65—Black Medic
(Annual)
Key ID: Trifoliate leaves with small toothed margins, small yellow flowers to black clusters
- 66—Serecea Lespedeza
(Perennial)
Key ID: densly leaved stems, wedge shaped leaves with point at the tip
- 67—Henbit
(Annual)
Family: Lamiaceae
Key ID: opposite sessile leaves, deep lobes and upright stems
- 68—Ground Ivy
(Perennial)
Family: Lamiaceae
Key ID: creeping habit, opposite rounded leaves with rounded teeth, long petioles (creeping charlie)
- 69—Motherwort
(Perennial)
Family: Lamiaceae
Key ID: palmately lobed, deep veins, purple on the flowering stalk
- 70—Velvetleaf
(Annual)
Family: Malvaceae
Key ID: heart shaped leaves, dense soft hairs, butterprint capsules
- 71—Venice Mallow
(Annual)
Family: Malvaceae
Key ID: deeply lobed leaves, whiteish flowers with purple centers
- 72—Common Mallow
(Annual)
Family: Malvaceae
Key ID: rounded leaves with long petioles, scalloped margins
- 73—Carpetweed
(Annual)
Key ID: glaborous stems and leaves, whorled leaf arrangement
- 74—Wild-4-o'clock
(Perennial)
Key ID: opposite smooth leaves and stem, green bract around flower clusters
- 75—Yellow Woodsorrel
(Perennial)
Key ID: light green/purple leaflets, trifoliate
- 76—Buckhorn Plantain
(Perennial)
Family: Plantaginaceae
Key ID: basal rosette of narrow leaves, flower spike on long stalk
- 77—Plantain
(Perennial)
Family: Plantaginaceae
Key ID: rosette of oval leaves with prominent veins
- 78—Pennsylvania Smartweed
(Annual)
Family: Polygonaceae
Key ID: alternate, elliptic leaves, ochrea, ascending growth habit
- 79—Curly Dock
(Perennial)
Family: Polygonaceae
Key ID: rosette of wavy leaves, ochreas, achenes on flower stalk
- 80—Wild Buckwheat
(Annual)
Family: Polygonaceae
Key ID: viney growth habit, alternate lanceolet leaves with ochrea
- 81—Swamp Smartweed
(Perennial)
Family: Polygonaceae
Key ID: creeping rootstalk, long lanceolet leaves with ochrea, pubescent stems and leaves
- 82—Prostrate Knotweed
(Annual)
Family: Polygonaceae
Key ID: alternate elliptic leaves, ochrea, prostrate growth
- 83—Japanese Knotweed
(Perennial)
Family: Polygonaceae
Key ID: dense erect plants, bamboo like stems and egg shaped leaves, ochrea by leaf axil
- 84—Common Purslane
(Annual)
Family: Plantaginaceae
Key ID: succulent stems and leaves, prostrate growth
- 85—Catchweed Bedstraw
(Annual)
Key ID: square stem with bristles, whorled leaves
- 86—Common Mullein
(Biennial)
Key ID: thick, densly hairy and gray green leaves
- 87—Eastern Blacknightshade
(Annual)
Family: Solanaceae
Key ID:
Triangular leaves, nuerous holes, star shaped flowers with berries
- 88—Buffalobur
(Annual)
Family: Salanaceae
Key ID: deeply lobed and wrinkled leaves, spines on veins, yellow flowers
- 89—Jimsonweed
(Annual)
Family: Solanaceae
Key ID: glaborous dark green leaves, dark stem, spikey capsules
- 90—Virginia Creeper
(Perennial)
Key ID: woody vine with five leaflets
- 91—Puncturevine
(Annual)
Key ID: compound leaves with hairy leaflets, mat forming, spikey fruit
- 92—Wild Violet
(Perennial)
Key ID: heart shaped leaves developing from crown
- 93—Purple Loosestrife
(Perennial)
Key ID: sessile lanceolate leaves, opposite or whorled, square stems and purple spikes
- 94—Pirckly Sida
(Annual)
Family: Malvaceae
Key ID: Lanceolate leaves, serrated, two spines on node
- 95—Common Pokeweed
(Perennial)
Key ID: branched lanceolate leaves, wavy margins, white leaves and purple berries
- 96—Common Buckthorn
(Perennial)
Key ID: oval curled leaves, thorn on twig tips and yellow bark
- 97—Multiflora Rose
(Perennial)
Key ID: fringed stipule
- 98—Horsenettle
(Perennial)
Family: Solanaceae
Key ID: Spines on stems and underside of leaves, holes in leaves
- 99—Clammy Ground Cherry
(Perennial)
Family: Solanaceae
Key ID: densly pubescent and ovate leaves
- 100—Stinging Nettle
(Perennial)
Key ID: opposite leaves with coarse teeth, prominent veins, stem four angled, stinging hairs
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- Agriculture Flashcards on Agron 217 Exam 3, created by Rebekah Muench on 30/03/2021.
- Created by
- Rebekah Muench
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- Created by Rebekah Muench · Mar 30, 2021
- Copied by Rebekah Muench · Mar 30, 2021
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