Terminology Used in the Plant Lecture0.pdf Notes

Terminology Used in - NativeRegion .Plants ,exotic,orhybrid.,native .Exotic America. genera.The"x" USDAHardinessZone (USDA)

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: TerminologyUsedinthePlantLectureNotes NativeRegion: Thegeographicallocationwherenaturalpopulationsofthisspeciesareknowntogrow.Plants aresometimesclassifiedasnative,exotic,orhybrid.Asstandardizedforthiscourse,native indicatestheplantisfoundinnaturalpopulationsgrowinginEasternNorthAmerica.Exotic indicatesplantsintroducedtoEasternNorthAmericafromregionsoutsideofEasternNorth America.Hybridindicatestheplantistheresultofacrossbetweentwodifferentspeciesor genera.The"x"usedinscientificnamessimplyindicatesthattheplantisofhybridorigin. USDAHardinessZone: ThisreferstotheUnitedStatesDepartmentofAgriculture(USDA)HardinessZonesestablishedby theU.S.NationalArboretumdescribingtheaveragecoldesttemperatureinwinter.Thenumbers providedintheplantdescriptionsofthispacketidentifytheNorthernmostzoneinwhichthe plantwillgrowwithoutregularwinterdamage.ClickherefortheUSDAHardinessZonemap. Function: Providedareexamplesofcommonlandscapeusagesoftheseplants.Thislistisnotinclusiveof allpossiblefunctionsanduses. HeightandSpread: Thesizeslistedherearetobeconsideredlooseapproximationsofeachplant'smatureand functionalsize.Maturesizeslistedaretypicalheightandspreadrangesattainedat developmentalmaturity,atwhichtimegrowthrateslowsconsiderablyinmostcases.Thesize attainedbyplantsgrowinginespeciallygoodorpoorconditionsmayvaryaccordingly. Variationinplantgenotypes,aswouldoccurforexampleinseedpropagatedstock,orin cultivars,mayalsoinfluencefunctionalsizes. GrowthRate: Fastgrowingplantsmaywellexceedonefootofnewshootlengthperyear,whereasslow growingplantsperhapsaslittleoneinchperyear. Texture: Referstothevisibleappearance,ratherthanphysicalfeeling.Largerleavedplantsappearto haveamorecoarsetexture. Form: Providedisashortdescriptionofthegeneralshapeandgrowthhabitofatypicalmature specimen.Asforsize,theformandgrowthhabitcanbeinfluencedbygenotypeand environment. ForemostLandscapeInterestsbySeasons: Describedarethemajorseasonsofinterestwiththeassociatedestheticfeature.Themost distinctivetraitsareusuallycolorfulflowers,foliage,fruits,andstems,andassuch,theseare emphasizedinthiscategory.Itshouldalsobeconsideredhowever,thatplantsoftenpossess interestingformsandtextures,andnumerousothersubtlevisualcharactersthatinfluenceplant aestheticappealinvariousseasons. SiteRequirementsandSpecialFeatures: Providesthebasicenvironmentalneedsandpreferencesoftheplant,suchlightandsoil moisturerequirements.Specialmanagementsuggestionsanduniquefactsabouttheplantmay alsoappearhere. Light: Theoptimumexposuretosolarradiationforeachplantisoftenpresentedaseitherfullsun(more than6hoursdirectsunlight),partialshade(2to6hoursofdirectsunlight),orshade(lessthan2 hoursofdirectsunlight).Shadedoesnotmeancompletedarkness,butinstead,completeto nearlycompletescreeningfromdirectsunlight. SoilMoisture: Thisdescriptionshouldbethoughtofasarangeofsoilmoistureconditionsinwhichtheplant growswell.Importantly,theterm"wetsoil"whenusedheredoesnotmeanstandingwater (unlessindicated),butinsteadaverymoistsoilapproachingwatersaturation. Limitations: Looselydefined,plantsgenerallyhaveoneormorelimitationsorweaknessesasitrelatesto usageinthelandscape.Presentedareimportantlimitationsthatshouldbeconsideredduring theplantselectionprocess. ImportantVariants: Thissectioncitesimportantorvaluablegenotypes(usuallycultivarsorvarieties)ofspecial noteworthiness.Inmanycases,additionalusefulvariantsareavailableintheindustrythanlisted here. KeyRecognitionFeatures: Checkhereforshortdescriptionsofdistinguishingmorphologythatmayhelpyoudelineatethis speciesfromanother. ...
View Full Document

This note was uploaded on 02/23/2012 for the course HORT 217 taught by Professor Staff during the Fall '08 term at Purdue University-West Lafayette.

Ask a homework question - tutors are online