Plant List 4a (spruces) Flashcards
What is the spruce genus?
Picea
How to identify trees in the Picea genus? (2)
- tall, symmetrical, conical trees
- common landscape plants esp. in large scale landscape plantings
- not suitable for hot, dry, polluted conditions
- whorled branches
- spirally arranged leaves, usually 4 angled
What is the binomial name of white spruce?
Picea glauca
Picea glauca has a ____ _______ crown
cone-shaped
Needles of this spruce have a white waxy coating
Picea glauca, white spruce
What is are 2 ways to identify Norway spruce?
- Primary branches upturned, secondary branches pendulous
- 6” long cones
What is the binomial name of Bird’s Nest Spruce?
Picea abies ‘Nidiformis’
What is the binomial name of Serbian Spruce?
Picea omorika
How to identify serbian spruce?
- narrow pyramid shape
- flattened bright green needles with silvery undersides
- violet-purple cones, yellowish brown up to 2 1/2 inches long (small)
What’s the scientific name of Colorado spruce?
Picea pungens
How to ID Colorado Spruce?
- gray green to blue green needles
- stiff needles, pointy
- 4 angled, more crowded above the branch
Which is taller? Thompsen Blue Spruce or Colorado Spruce
Colorado Spruce. Thompsen Blue is a lot smaller.
What is the binomial name of Thompsen Blue Spruce?
Picea pungens ‘Thompsenii’
What is the binomial name of the Colorado Blue Spruce?
Picea pungens var. glauca
Colorado Blue spruce has ___, ____ branching all the way to the ground.
rigid, tiered
All the spruces except one on list 4a prefer full sun. Which spruce does not and what is its light requirement?
Picea omorika, Serbian spruce - full sun-part shade
