Betula nigra L., Sp. Pl. 982 1753. (syn: Betula americana Buc’hoz [Invalid]; Betula lanulosa Michx.; Betula nigra var. parvifolia Regel; Betula nigra pendula Paul, nom. nud.; Betula rubra F.Michx.; Betula rupestris Raf.);
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C. & E. U.S.A. as per WCSP;
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District of Columbia; Florida; Georgia; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maryland; Masachusettes; Minnesota; Mississippi; Missouri; New Jersey; New York; North Carolina; Ohio; Oklahoma; Pennsylvania; South Carolina; Tennessee; Texas; Virginia; West Virginia; Wisconsin as per Catalogue of Life;
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Tree for ID : Atlanta, Georgia : 18JAN19 : AK-36 : 3 posts by 2 authors. Attachments (3)
Small tree seen in Atlanta.
Could be River Birch?


Very good images. Yes, I believe you are correct. Betula nigra aka River Birch.


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Betula kenaica from California-GS03052023: 7 high res. images.
Betula kenaica W H Evans

Syn:  Bpapyrifera Marshall var. kenaica (W. H. Evans) A. Henry
Though treated as synonym of B. papyrifera by major databases, is treated as distinct species by Flora of North America. It differs from B. papyrifera Marshall in often pinkish to grayish white bark, smaller leaves 4-5 cm long (5-9 cm in B. papyrifera), less pointed leaf tip and more or less regularly serrate leaves. 
Photographed from Fremont, California.

I think looks different to me as per images at
https://commons.wikimedia.org/wiki/Category:Betula_kenaica
https://en.wikipedia.org/wiki/Betula_kenaica
https://myplantin.com/plant/5092
https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:32197-2
Can it be B.nigra as per
https://www.eattheweeds.com/tag/betula-kenaica/
https://en.wikipedia.org/wiki/Betula_nigra
https://hort.extension.wisc.edu/articles/river-birch-betula-nigra/


You are correct once again, thanks a lot.


Mostly 7-8 pairs of veins, erect cones, though leaves are smaller, I take it as B. nigra.