a rose is a rose is a rose
DESCRIPTION
A rose is a rose is a rose. Or is it?. Black Hawthorne. Washington Native Plant. Crataegus douglasii. Crataegus douglasii var douglasii. Crataegus douglasii var suksdorfii. Crataegus suksdorfii. General Characteristics. Deciduous shrub, 12-30 feet, white flower Thorns from ½” – 1” - PowerPoint PPT PresentationTRANSCRIPT
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2/9/2014 Black Hawthorne... or not? 1
A rose is a rose is a rose
Or is it?
Creative Commons 4.0 International License.
2/9/2014 Black Hawthorne... or not? 2
Black Hawthorne
• Crataegus douglasii• Crataegus douglasii var douglasii
• Crataegus douglasii var suksdorfii• Crataegus suksdorfii
• Washington Native Plant
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General Characteristics• Deciduous shrub, 12-30 feet, white flower
• Thorns from ½” – 1”
• Prefers moist, acidic soil
• Tolerates most light conditions
• Attracts large number of bees
• Attracts 1 butterfly and 1 moth species
• Small, purple fruit – not very tasty
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2/9/2014 Black Hawthorne... or not? 4
Photo: Walter Siegmund
Photo: Terry Glase
Photo: Tai Sommers
Photo: Wikipedia user Kymi
Photo: Public Domain
Black Hawthorn
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2/9/2014 Black Hawthorne... or not? 5
DifferencesAttribute C. douglasii C. suksdorfii
# of Stamens 10 20
Young branch color Dark reddish brown Grayish brown
Location Throughout the west.
Most common in the West cascades
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Crataegus douglasii var douglasii
Note: C. douglasii var douglasii has 10 stamens Photo: Paul Slichter
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2/9/2014 Black Hawthorne... or not? 7
Crataegus douglasii var suksdorfii
Note: C. douglasii var suksdorfii has 20 stamensPhoto: Paul Slichter