You may also want to check Trees, Shrubs, and Woody Vines of North Carolina
Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Rosids: Fabids: Fagales
WEAKLEY'S FLORA (11/30/12):
Quercus nigra
FAMILY
Fagaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Quercus nigra
FAMILY
Fagaceae
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (1968) 055-03-025:
Quercus nigra
FAMILY
Fagaceae
COMMON NAME:
Water Oak
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USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_quni_001_lvd
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USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide pnd_quni_006_lvd
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JK Marlow jkm0501b_08
January Greenville County SC
Roadside
Some green leaves until midwinter, per Vascular Flora of the Carolinas.
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JK Marlow jkm0501c_15
January Pickens County SC
Roadside
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JK Marlow jkm090119_003
January Greenville County SC
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Gill Newberry gn03_quercus_nigra
March
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Gill Newberry gn03_quercus_nigra2
March
Staminate flowers in clustered drooping catkins, each flower with 3-12 stamens, per Vascular Flora of the Carolinas.
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Gill Newberry gn03_q_migra_female_flowe
March
Pistillate flowers solitary or 2-3 on a short spike, per Vascular Flora of the Carolinas.
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JK Marlow s050503_b
May Greenville County SC
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Richard and Teresa Ware rtw_quercus_nigra_leaves
September
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Paul Thompson pstquercus_nigra
September?
Note tufts of woolly pubescence on leaf undersides in lateral vein axils. — Clemson Extension
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JK Marlow jkm0510c_09
October Greenville County SC
Churchyard or cemetery
Thin acorn cup, covering 1/4 nut; nut mostly 10-14mm long and as wide, per Woody Plants of the Southeastern US: A Winter Guide.
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JK Marlow s041201_b
December Greenville County SC
Churchyard or cemetery
Leaves broadest near tip, tapering to a long narrow base, sometimes lobed, per Native Trees of the Southeast, An Identification Guide.
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JK Marlow s041201_c
December Greenville County SC
Churchyard or cemetery