The genus Hamamelis is composed of six species native to North America [3] and temperate east Asia [3]. The word hamamelis is the classical Greek name of Mesipilus germanica L., medlar, or perhaps Sorbus domestica L., servicetree, words meaning together (in a time sense) and apple, which suggests flowers blooming at the same time.
Other Common Names: common witch hazel, snapping hazel, southern witch hazel, spotted alder, winter bloom.
Distribution: North America, from Nova Scotia, New Brunswick, Maine and Quebec, west to Ontario, Michigan and Minnesota, south to Iowa, Arkansas, Oklahoma and Texas, and east to Florida.
The Tree: Witch hazel is a fall-to-winter flowering tree or shrub. It has a thin, scaly, light- brown bark and small branches that grow in a zigzag manner. The flowers are bisexual with prominent, yellow, ribbon-like petals. The fruits are small, paired and horned. The tree attains heights of 30 ft (9 m) and diameters of 1 ft (0.3 m). Witch hazel grows at forest edges and along streams as an understory species. It grows best in deep, rich soils.
General Wood Characteristics: The sapwood of witch hazel is light brown, with a pinkish hue, while the heartwood is dark brown. The wood has medium luster and no odor or taste. It has medium density, fine texture, and straight grain.
Weighta |
|
|
|
Moisture content |
Specific gravity |
Weight |
|
lb/ft3 |
kg/m3 |
||
Green 12% Ovendry |
0.56 |
59 |
945 689 NA |
aReference (59). |
|
|
|
Mechanical propertiesa
Property |
Green |
Dry |
|
|
MOE |
1.11 × 106 lbf/in2 |
7.653 GPa |
1.46 × 106 lbf/in2 |
10.067 GPa |
MOR |
8.30 × 103 lbf/in2 |
57.229 MPa |
15.2 × 103 lbf/in2 |
104.804 MPa |
C| | |
3.40 × 103 lbf/in2 |
23.443 MPa |
6.74 × 103 lbf/in2 |
46.472 MPa |
C ⊥ |
0.62 × 103 lbf/in2 |
4.275 MPa |
1.37 × 103 lbf/in2 |
9.446 MPa |
WML |
19.5 in-lbf/in3 |
134.453 kJ/m3 |
21.0 in-lbf/in3 |
144.795 kJ/m3 |
Hardness |
980 lbf |
4,359.04 N |
1,530 lbf |
6,805.44 N |
Shear| | |
1.12 × 103 lbf/in2 |
7.722 MPa |
NA |
NA |
aReference (59).
Drying and shrinkagea
Percentage of shrinkage (green to final moisture content)
Type of shrinkage 0% MC 6% MC 20% MC
Tangential NA NA NA
Radial NA NA NA
Volumetric 18.8 NA NA
aReference (59).
Working Properties: Rather easily worked. Durability: Nonresistant to heartwood decay. Preservation: No information available at this time.
Uses: Branches for divining rods, oil from leaves; twigs and bark used for liniments and medicines.
Toxicity: No information available at this time. Additional Reading: 29, 55, 68, 74.
The genus Ilex contains over 350 species native to North America [26], Europe [1], tropical
Africa [1], and Australia [1], with the rest in China and Brazil. The word ilex is the classical
Latin name of Quercus ilex L., holly oak, of Europe, which has holly-like leaves.
Holly: Ilex spp. Aquifoliaceae
Ilex ambigua Carolina holly, large-leaf holly, mountain holly, mountain privet,
mountain winterberry, myrtle holly, sand holly
Ilex amelanchier sarvis holly, serviceberry holly
Ilex aquifolium European holly (introduced in colonies)
Ilex cassine Alabama dahoon, cassena-bush, cassena holly, christmasberry, da
hoon, dahoon holly, Florida holly, hendersonwood, yaupon
Ilex coriacea bay gallbush, large gallberry, sweet gallberry
Ilex decidua bearberry, curtis possumhaw, deciduous holly, meadow holly, pos
sumhaw, privet, swamp holly, winterberry
Ilex krugiana krug holly, southern holly, tawnyberry holly
Ilex laevigata smooth winterberry
Ilex longipes chapman holly, Georgia holly
Ilex montana mountain holly, mountain winterberry
Ilex myrtifolia dahoon, myrtle dahoon, myrtle holly
Ilex opaca* American holly, christmas holly, evergreen holly, holly, prickly
holly, white holly, yule holly Ilex opaca American holly (typical)
var. opaca
Ilex opaca dune holly, hummock holly, scrub holly
var. arenicola
Ilex verticillata black alder, common winterberry, winterberry
Ilex vomitoria Appalachian tea, bassena, Carolina tea, cassena, cassena-bush, cassine,
cassioberry, christmas berry, deerberry, emetic holly, evergreen cassena, evergreen holly, true cassena, yaupon, yopon
*commercial species
The following description is for American holly.
Distribution: North America, from Massachusetts, Connecticut and New York, southwest to Pennsylvania, West Virginia, Ohio, Kentucky, Missouri and Oklahoma, south to Texas and east to Florida.
The Tree: Hollies have spiny evergreen leaves and red berries on the female trees. Holly is found in lower areas of deep, rich, moist soils in association with magnolia, oaks, sweet gum, maples, and hackberry. It reaches a height of 50 ft (15 m) with a 2 ft (0.6 m) diameter. The bark is thick and relatively smooth with rough wart-like processes.
General Wood Characteristics: The sapwood of holly is white and the heartwood is an ivory white with a bluish cast or streaks. The wood has no characteristic odor or taste. It is heavy, hard, close-grained and tough, with a low luster like ivory.
Weighta |
|
|
|
Moisture content |
Specific gravity |
Weight |
|
lb/ft3 |
kg/m3 |
||
Green 12% Ovendry |
0.50 |
57 |
913 641 NA |
aReference (59). |
|
|
|
Mechanical propertiesa
Property |
Green |
|
Dry |
|
MOE |
0.90 x 106 lbf/in2 |
6.205 GPa |
1.11 x 106 lbf/in2 |
7.653 GPa |
MOR |
6.50 x 103 lbf/in2 |
44.818 MPa |
10.3 x 103 lbf/in2 |
71.019 MPa |
C| | |
2.64 x 103 lbf/in2 |
18.203 MPa |
5.54 x 103 lbf/in2 |
38.198 MPa |
C ⊥ |
0.61 x 103 lbf/in2 |
4.206 MPa |
1.13 x 103 lbf/in2 |
7.791 MPa |
WML |
10.8 in-lbf/in3 |
74.466 kJ/m3 |
10.7 in-lbf/in3 |
73.777 kJ/m3 |
Hardness |
790 lbf |
3,513.92 N |
1,020 lbf |
4,536.96 N |
Shear| | |
1.13 x 103 lbf/in2 |
7.791 MPa |
1.71 x 103 lbf/in2 |
11.790 MPa |
aReference (59). |
|
|
|
|
Drying and shrinkagea,b
Type of shrinkage |
Percentage of shrinkage |
||
0% MC |
6% MC |
20% MC |
|
Tangential |
9.9 |
7.9 |
3.3 |
Radial |
4.8 |
3.8 |
1.6 |
Volumetric |
16.9 |
13.5 |
5.6 |
aHolly generally discolors when seasoned slowly. It is best cut in winter and dried quickly. It may warp and cup during kiln drying.
bReferences: 0% MC, (98); 6% and 20% MC, (90).
Kiln drying schedulea |
|
|
|
|
|
Condition |
4/4, 5/4, 6/4 |
8/4 |
10/4 |
12/4 |
16/4 |
Standard |
T6-D4 |
T4-C3 |
NA |
NA |
NA |
aReferences (6, 86). |
|
|
|
|
|
Working Properties: Holly is difficult to work, but takes a high polish. It glues and screws well, but drilling should be done slowly. The wood takes a stain well and can be ebonized.
Durability: Holly is susceptible to fungal attack. Preservation: No information available at this time.
Uses: Furniture (inlay), keys for musical instruments (ebonized), scientific instruments, fixtures, brush backs, carvings, scrollwork, engravings, handles, turnery and novelties.
Toxicity: No information available at this time.
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