A) Sharp thorns B) Opposite leaf arrangement C) Alternate leaf arrangement D) Smooth bark
A) Oval B) Needle-like C) Compound D) Heart-shaped
A) Opposite B) Whorled C) Basal D) Alternate
A) Black B) Yellow C) Green D) Red
A) Many B) 2 C) 1 D) 4
A) Green and peeling B) Dark gray with lenticels C) Smooth and white D) Covered in thorns
A) Salix alba B) Rhamnus cathartica C) Fraxinus americana D) Acer negundo
A) Lack of teeth B) Deep lobes C) Spiny edges D) Prominent teeth
A) Alternate B) Whorled C) Opposite D) Basal
A) Green B) Dark purple to black C) Yellow D) Red
A) Rhamnus cathartica B) Quercus alba C) Frangula alnus D) Acer platanoides
A) Bright green B) Rough and deeply furrowed C) Grayish-brown with prominent lenticels D) Smooth and white
A) Flooding B) Shade C) Full sun D) Dry soil
A) Deserts B) Alpine meadows C) Old growth forests D) Disturbed areas
A) Prevents soil erosion B) Provides habitat for endangered species C) Outcompetes native vegetation D) Enhances biodiversity
A) Invasive B) Endangered C) Native D) Beneficial
A) Planting more buckthorn B) Watering regularly C) Cutting and herbicide application D) Fertilizing heavily
A) Requires specific soil conditions B) Susceptible to many diseases C) Prolific seed production D) Slow growth rate
A) Alternate leaf arrangement on glossy buckthorn B) Thorny branches on glossy buckthorn C) Black berries in the fall D) Opposite leaf arrangement on common buckthorn
A) By leaf shape B) By bark color C) They are indistinguishable D) By examining flower structures
A) Rocky soil B) Saturated soil C) Well-drained soil D) Highly acidic soil
A) Multi-stemmed shrub or small tree B) Vine C) Ground cover D) Single, straight trunk
A) Oak B) Dogwood C) Birch D) Pine
A) Summer B) Fall C) Winter D) Spring
A) Support for climbing vines B) Protection from insects C) Water storage D) Gas exchange
A) Summer B) Late fall or winter C) Any time D) Spring
A) Poisonous B) Beautiful C) Strong D) Purgative
A) Large, showy flowers B) Small, greenish-yellow C) Bright red flowers D) Fragrant white flowers
A) To improve the buckthorn's health B) To promote native plant growth C) To increase soil erosion D) To provide food for invasive species
A) Norway maple B) Japanese barberry C) Serviceberry D) Burning bush |