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