FIRE EFFECTS
SPECIES: Crataegus douglasii | Douglas Hawthorn 



IMMEDIATE FIRE EFFECT ON PLANT : 
Both high- and low-severity fires will consume the aboveground parts of
Douglas hawthorn.


DISCUSSION AND QUALIFICATION OF FIRE EFFECT : 
The structural configuration of Douglas hawthorn limbs makes it highly
flammable due to the sheltering of dry grasses and twigs.  These fuels
may create a "ladder" for fire to be carried up to the crown, destroying
the entire thicket.


PLANT RESPONSE TO FIRE : 
The range of Douglas hawthorn is limited by fire.  Removal of the plant
may require years of growth for full reestablishment.  Frequent fires
may confine Douglas hawthorn plants to dense thickets [11].


DISCUSSION AND QUALIFICATION OF PLANT RESPONSE : 
Daubenmire [11] hypothesized that the expanded range of Douglas hawthorn
stands in eastern Washington was the result of improved agricultural
cropping practices which exclude stubble burning.  Douglas hawthorn
thickets have redeveloped from stump sprouts as the number and size of
fires have decreased [11,26].


FIRE MANAGEMENT CONSIDERATIONS : 
NO-ENTRY

Related categories for Species: Crataegus douglasii | Douglas Hawthorn