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27 Cards in this Set
- Front
- Back
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Native Weeds |
Plants that have historic organs in the area and we're not introduced by humans |
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Introduced plants |
Came from other parts of the country or world through activities of humans |
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How weeds spread |
People, Wind, Water, mammals, birds and humans |
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Seeds that evolve to travel |
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Grass seedling have only one leaf when they emerge from the ground, therefore they are called. |
Monocotyledons |
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What plant is this |
Broadleaf |
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Herbaceous Broadleaf |
Plants die back to the ground each winter |
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Broadleaf seedlings have two cotyledons (first leaves) and therefore are called...? |
Dicotyledons |
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Sedges are? |
Perennial plants with trianglar, joints stems and narrow, Grassley leaves |
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Rushes are monocotyledonous |
grasslike plants that are common in marshy or wet areas |
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Woody plants |
Form wood and do not die during the winter. Brush, shrubs and trees |
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Summer Annuals |
Green and yellow foxtail Puncturevine Russian thistle Crabgrass Kochia Common lambsquarters |
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Winter Annuals |
Tumble mustard Downy brome Shepherdspurse |
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Life cycle of annuals |
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Annuals |
Complete there life cycle in less than 1 calender year |
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Summer Annuals |
Plants germinate in spring or summer |
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Winter Annuals |
Plants germinate in the late summer to early winter |
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Common biennieals |
Tansy ragwort Common mullein Common Burdock bull thistle poison hemlock |
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Biennials |
Plants complete their life cycle within 2 years |
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Perennials |
Live more than 2 years and some may live indefinitely. Persistent roots |
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Simple perennials |
Propagate and spread primarily by seed |
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Creeping perennials |
Reproduce primarily by vegetative propagation creeping Roots creeping stolons or creeping rhizomes |
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Common perennials |
Simple Common dandelion Curly dock Buckhorn plantain Broadleaf plantain Dalmatian toadflax Pokeweed Creeping Leafy spurge Field bindweed Canada Thistle Bermudagrass Johnsongrass Quackgrass Yellow nutsedge |
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Rhizome or creeping roots |
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Stolon |
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What plant is this? |
Canada thistle is a creeping perennial reproduce by seeds and horizontal routes that may exceed as long as 12 feet |
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What plant is this? |
Dalmatian toadflax Grows from a single a stem branching above the middle of the plant |
