Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
CaliforniaPhenologyProject: speciesprofilefor CatclawAcacia (Acaciagreggii) CPPsite(s)wherethisspeciesismonitored:JoshuaTreeNa+onalPark Whatdoesthisspecieslooklike? Thisdeciduousshruborsmalltreehascurvedthornsonitsstems. Thegrey-greenleavesaremadeupofmanysmallleaflets.The flowersarearrangedininflorescencesmadeupofmanysmall lightyellowflowers.Inflorescencestendtobelongerthanthe leavesandclusteredwithleavesonshort-shoots.Thefruitisa brownpodbetween5and15cen+meterslong.Itcanbecurved, twisted,orflatinshape,narrowingbetweentheseeds. Whenmonitoringthisspecies,usetheUSA-NPNsemideciduoustreesandshrubsdatasheet. Photocredit:StanShebs Speciesfacts! • TheCPPfourleKercodeforthisspeciesisACGR. • Thisspeciesgotitscommonnamefromhookedthornsthatare thesizeandshapeofacatsclawandtendtohookunsuspec+ng wanderers. • Theseedsrequirescarifica+ontogerminate.ThisoPenoccurs whenseedstravelacrossalandscapeduetoflashflooding. • Thisspecieshasextrafloralnectariesthatprovideafoodand watersourceforants. • Na+veamericansavoidedmaturefruitofthisspeciesbecausethe +ssuecontainsapoten+allypoisonouscompoundcalledprunasin. However,theyoungunripefruitwaseatenandthestemswere usedformakingtools. Photocredit:StanShebs Whereisthisspeciesfound? • • • Foundateleva+onsbetween100and1400meters. Occursalongflatsandwashes FoundindesertregionsfromCaliforniatoTexasandintoMexico. Photocredit:StanShebs Formoreinforma+onaboutphenologyandtheCaliforniaPhenologyProject(CPP),pleasevisit theCPPwebsite(www.usanpn.org/cpp)andtheUSA-NPNwebsite(www.usanpn.org) Version3,May2016 CaliforniaPhenologyProject: speciesprofilefor CatclawAcacia (Acaciagreggii) Youngleaves Leaves Youngleavesare generallythinner andlightercolored thanmatureleaves. AnthonyMendoza Flowersorflower buds Whenmonitoring flowerorflowerbud abundanceforthis species,counteach inflorescenceasa singleflowering structure!For example,ifthereare twoinflorescences AnthonyMendoza withmanyflowersor budseach,then ACGRflowersandflowerbuds abundanceshouldbe growoninflorescencestalks. recordedas<3. Beforetheflowersopentheyare stalkswithmanysmallbudson them(~2-3”long) Fruits JohnAlcock Thefruitisapod thatchangesfrom greentotan,redbrownorbrownand splitsopentoexpose theseeds.Donot includeemptypods thathavealready droppedalloftheir seeds. Note:fruitphenophasesarenested;ifyourecordY for“ripefruits”youshouldalsorecordYto“fruits” Openflowers Youcanseethepollenproducinganthers emergingfromthe flowerinthephototo [email protected]@onof openflowersshouldbe recordedatthescaleof individualflowers,not inflorescences(i.e. esDmatetheproporDon AnthonyMendoza ofindividualflowers thatareopen)! Note:flowerphenophasesare nested;ifyourecordYfor“open flowers”youshouldalsorecordY to“flowersandflowerbuds” Ripefruits Afruitisconsidered ripewhenithasturned tan,red-brownor brown.Donotinclude emptypodsthathave alreadydroppedallof theirseeds. Phenophasesnotpictured:Recentfruitorseeddrop Version3,May2016