Tilia heterophylla: Difference between revisions
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#REDIRECT [[Tilia caroliniana]] |
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{{Taxobox |
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| color = lightgreen |
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| name = ''Tilia heterophylla'' |
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| regnum = [[Plant]]ae |
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| divisio = [[Flowering plant|Magnoliophyta]] |
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| classis = [[Magnoliopsida]] |
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| ordo = [[Malvales]] |
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| familia = [[Malvaceae]] |
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| genus = ''[[Tilia]]'' |
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| species = '''''T. heterophylla''''' |
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| binomial = ''Tilia heterophylla'' |
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| binomial_authority = [[Étienne Pierre Ventenat|Vent.]] |
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}} |
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{{R with history}} |
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'''''Tilia heterophylla''''' ('''White Basswood'''), is a species of ''[[Tilia]]'' native to [[mesic forest]]s in eastern [[North America]] from central [[New York]] south to northernmost [[Florida]] and west to [[Missouri]]; it is commonest in the [[Appalachian Mountains]].<ref name=usfs>U.S. Forest Service Silvics Manual: [http://na.fs.fed.us/pubs/silvics_manual/volume_2/tilia/heterophylla.htm ''Tilia heterophylla'']</ref> |
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{{R from alternative scientific name|plant}} |
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The main distinguishing characteristic from other North American ''Tilia'' species is the presence of dense felt (tomentum) of white hairs on the underside of the leaves. It is widely considered to be a [[variety (botany)|variety]] of ''[[Tilia americana]]'', as ''Tilia americana'' var. ''heterophylla'' (Vent.) Loudon,<ref name=hardin>Hardin, J. W. (1990). Variation patterns and recognition of varieties of Tilia americana s.l. ''Syst. Bot''. 15: 33-48.</ref><ref name=grin>Germplasm Resources Information Network: [http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?411224 ''Tilia americana'' var. ''heterophylla'']</ref> though some others place it in a separate section of the genus, more related to other ''Tilia'' species with white tomentum on the undersides of the leaves from [[Europe]] and [[Asia]], such as ''[[Tilia tomentosa]]''.<ref name=rushforth>Rushforth, K. (1999). ''Trees of Britain and Europe''. Collins ISBN 0-00-220013-9.</ref> The problem of its placement in the genus is complicated by extensive natural [[hybrid]]ization with ''Tilia americana''.<ref name=usfs/> |
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==Description== |
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It is a medium-sized to large [[deciduous]] [[tree]] growing to 27 m tall with a trunk up to 90 cm diameter. The [[leaf|leaves]] are large, very unequal at the base, 7–19 cm long and 6–14 cm broad, with a finely toothed margin; they are light green and smooth above, silvery downy beneath. The [[flower]]s are produced in clusters of 10–24 together; they are larger than those of ''T. americana''. The [[fruit]] is spherical, 13 mm diameter, downy, the fruit bract pointed at the base.<ref name=usfs/> |
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The tree is not generally known, but Professor Charles Sargent, in ''The Silva of North America'', says of it: "Few North American trees surpass it in beauty of foliage; and the contrast made by the snowy whiteness of the under surface of its ample leaves as they flutter on their slender stems, with the dark green of the Hemlocks and Laurels on the banks of rapid mountain streams produces one of the most beautiful effects which can be seen in the splendid forests which clothe the valleys of the southern Appalachian Mountains."<ref name=Keeler>{{cite book | last =Keeler | first =Harriet L. | title =Our Native Trees and How to Identify Them | publisher =Charles Scriber's Sons | date =1900 | location =New York | pages =24-31 }}</ref> |
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==Uses== |
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The young leaves are edible, and can be made into a mild-flavored tea.<ref name=pfaf>Plants For A Future: [http://www.pfaf.org/database/plants.php?Tilia+heterophylla ''Tilia heterophylla'']</ref> |
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==References== |
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{{reflist}} |
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[[Category:Malvaceae]] |
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[[es:Tilia_heterophylla]] |
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Latest revision as of 04:43, 10 November 2017
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