Quercus phellos
Willow Oak, Pin or Peach Oak

Mature Height: 70-130'     Longevity: 250 years

 Quercus phellos leaf. Quercus phellos art.
   

4-8 Water Range
Soil moisture tolerated by tree

6-8 Temperature Range
Hardiness Zones in which tree naturally occurs.

DEFENSE     Soil Moisture Key
4: No drought tolerance discussed in literature. References indicate presence in uplands rare & when present poorly formed.

8: "Mid" flood tolerance cited. Tree does not tolerate prolonged flooding in growing season as root submergence kills tree. However can tolerate long duration of flooding during cold season.

DEFENSE (from Distribution Maps)
National Audubon Society (NAS) Map: (NORTH) Solid Z6. (SOUTH) Solid Z8.

Peterson Field Guide (PFG) Map: Same as NAS.


   

8   Sun Strength

4   Shade Strength

DEFENSE
Growth Rate:
Succession:
Soil Range:
Salt Tol.:
Allelopath:
Avg Height:
Max Height:

Click here for Key
7.3 = Rapid- very rapid
0 = Not prominent pioneer
-.1 = 2 Major
+.2 = Moderate
0 = No
+.1 = 85'
+.1 = 130'

DEFENSE
Shade Tol.:
Succession:
Soil Range:
Salt Tol.:
Allelopath:
Avg Height:
Longevity:

Click here for Key
3.7 =intolerant -moderate
0 = Sub-climax
-.1 = 2 Major
+.2 = Moderate
0 = No
+.1 = 85'
0 = 250 yrs

TOTAL SCORE (7.6): NRCS Plant database 20 yr height is exceptional - warrants initial rating greater than "7". Rapid growing tree that is not found on wide range of soil types. Most often found in wet areas.

TOTAL SCORE (3.9): Can persist under canopy for up to 30 years but does not grow well under canopy & needs to be released. Longevity based on FSA report of 200 yr average age. Other references reported long lifespan.


   

2   Fire Strength

3   Wind Strength

DEFENSE
Base Score: none-low (Big Tree) = 2-3
Fire Effects (FEIS) database indicates tree is sensitive to fire. Morphology of thin bark & shallow roots not good for resisting fire. Tree also most common in areas not frequented by fire. Assign lowest big tree value.
Final Value = 2

DEFENSE
Base Score: ???
Very little data. Will assign a lower value because of shallow root system & rather large size of tree. Univ. Florida indicates good wind performance.
Final Value = 3