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Native and Non-native Plant Seedlings of Northern Arizona Erin R. Thurston Ecological Restoration Institute
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Page 1: Native and Non-native Plant Seedlings of Northern Arizonaopenknowledge.nau.edu/2513/1/Thurston_E_2005_SeedlingGuide.pdf · Poaceae Bromus tectorum cotyledon Characteristics: Blades:

Native and Non-nativePlant Seedlings ofNorthern Arizona

Erin R. Thurston

Ecological Restoration Institute

Page 2: Native and Non-native Plant Seedlings of Northern Arizonaopenknowledge.nau.edu/2513/1/Thurston_E_2005_SeedlingGuide.pdf · Poaceae Bromus tectorum cotyledon Characteristics: Blades:

Contents

Introduction, methods 2About the author, acknowledgements,

contact information 3Grasses

Poaceae 4Forbs

Asteraceae 10Fabaceae 11Rosaceae 13Scrophulariaceae 13

ShrubsAnacardiaceae 15Ephedraceae 15Rhamnaceae 16

Glossary 17Appendix A: Species planted but not included

due to growing difficutly 18Appendix B: Species recommended

but not included 18

Page 3: Native and Non-native Plant Seedlings of Northern Arizonaopenknowledge.nau.edu/2513/1/Thurston_E_2005_SeedlingGuide.pdf · Poaceae Bromus tectorum cotyledon Characteristics: Blades:

IntroductionSouthwestern ponderosa pine forests support a wide

diversity of understory vegetation, including grasses, forbs,shrubs, and cacti. Plant identification is important in moni-toring following a disturbance event or in conducting ecolog-ical restoration. The purpose of this photographic guide isto assist ecologists and land managers in seedling identifica-tion and restoration monitoring.

MethodsI performed surveys with botanists employed with the

Ecological Restoration Institute (ERI) in order to determinethe range of species common to the greater Flagstaff area toinclude in the field guide. I then obtained seeds for theselected species from botanists employed with the ERI andfrom seed outlets in the Flagstaff area. I performed the nec-essary pre-germination treatments for each species, thengerminated the seeds by placing them on wet filter paper inpetri dishes. I also germinated seeds by planting them inpotting soil in seed flats. I manually watered the petri dish-es and kept the seed flats in a Northern Arizona Universitygreenhouse where they were watered by a timed sprinklersystem. When the seedlings began to grow, I photographi-cally documented each species, focusing on distinctive char-acteristics. I photographed the species with a Leica micro-scope fitted with an Optronics MagnaFire Sp camera, ModelS99805, located in the ERI ecology lab. I also measuredcharacteristics of each species, such as stem size and leafsize, and pressed samples of each stage.

The guide is organized in three sections--grasses,forbs, and shrubs. Each section is organized alphabeticallyby species. Two photographs of each plant species accompa-ny descriptions of the species at different developmentalstages (Note: certain species only have one photograph dueto complications in the growing process).

This is the 1st edition of this guide, and will hopefullyserve as a template for further editions. 2

Page 4: Native and Non-native Plant Seedlings of Northern Arizonaopenknowledge.nau.edu/2513/1/Thurston_E_2005_SeedlingGuide.pdf · Poaceae Bromus tectorum cotyledon Characteristics: Blades:

AuthorErin R. Thurston is an Undergraduate Research

Assistant with the Ecological Restoration Institute (ERI) andis pursuing a Bachelor of Science degree in EnvironmentalScience at Northern Arizona University. The creation of thisidentification guide was part of her undergraduate researchwork with the ERI.

AcknowledgementsThis project was funded through a Hooper UndergraduateResearch Award and the Ecological Restoration Institute ofNorthern Arizona University. Special thanks to Robin Long,Luke Brandy, Steve Buckley, Mike Stoddard, and ChrisMcGlone.

ContactEcological Restoration InstitutePO Box 15017 Flagstaff, AZ 86011(928) 523-7182www.eri.nau.edu

Copyright © 2005 Erin R. Thurston, Ecological Restoration Institute3

Page 5: Native and Non-native Plant Seedlings of Northern Arizonaopenknowledge.nau.edu/2513/1/Thurston_E_2005_SeedlingGuide.pdf · Poaceae Bromus tectorum cotyledon Characteristics: Blades:

Grasses- Poaceae

Aristida purpureaPurple threeawn

Characteristics: Blades: narrow, flat blades, 5-7 cm tall@ 1st true leaf, 1 mm wide Culm: 8 mm between glume and 1sttrue leaf Other: awns on glume

Blepharoneuron tricholepisPine dropseed

Characteristics: Blades: curled tips; 1.5 cm @ 1st trueleaf, 1 mm wide; 2-3 cm tall @ 2nd true leaf, 1 mm wide Culm:3 mm between glume and 1st & 2nd true leaf

4

cotyledon 1st true leaf

cotyledon 1st true leaf

Page 6: Native and Non-native Plant Seedlings of Northern Arizonaopenknowledge.nau.edu/2513/1/Thurston_E_2005_SeedlingGuide.pdf · Poaceae Bromus tectorum cotyledon Characteristics: Blades:

Poaceae

Bouteloua curtipendula

cotyledon

Characteristics: Blades: curled tips, flat blades; 4.5 cmtall @ 1st true leaf, 1 mm wide, ciliate margin Culm: 1 cmbetween glume and 1st true leaf

Bouteloua gracilisBlue grama

Characteristics: Blades: curled tips, flat blades; 3 cm tall@ 1st true leaf, 1 mm wide Culm: 1 cm between glume and 1sttrue leaf

1st true leaf

5

cotyledon 1st true leaf

Sideoats grama

Page 7: Native and Non-native Plant Seedlings of Northern Arizonaopenknowledge.nau.edu/2513/1/Thurston_E_2005_SeedlingGuide.pdf · Poaceae Bromus tectorum cotyledon Characteristics: Blades:

Poaceae

Bromus tectorum

cotyledon

Characteristics: Blades: "corkscrews," but more pubes-cent than Elymus--over whole blade; 4.5 cm tall @ 1st true leaf, 1mm wide Culm: 1 cm between glume and 1st true leaf Other:awn on glume; late summer/ early fall germination

Elymus elymoidesSquirreltail

Characteristics: Blades: "corkscrews," may be pubescentalong bottom midvein, flat blade; 6-15 cm tall @ 1st true leaf, 1.5mm wide; prominent veins Culm: reddish, 1-2 cm betweenglume and 1st true leaf

1st true leaf

6

cotyledon 1st true leaf

Cheatgrass

Page 8: Native and Non-native Plant Seedlings of Northern Arizonaopenknowledge.nau.edu/2513/1/Thurston_E_2005_SeedlingGuide.pdf · Poaceae Bromus tectorum cotyledon Characteristics: Blades:

Poaceae

Festuca arizonica

cotyledon

Characteristics: Blades: rolled, "hair-like" blade; narrow,straight up & down; 5.5-8.5 cm tall @ 1st true leaf, 0.5 mm wideCulm: 1.2 cm between glume and 1st true leaf

Koeleria macranthaPrairie Junegrass

Characteristics: Blades: 2.5 cm tall @ 1st true leaf, 0.5mm wide; 3 cm tall @ 2nd true leaf, <1 mm wide; narrow, flatblades; short compared to Elymus & more blue-green Culm: 3mm between glume and 1st true leaf

2nd true leaf

7

cotyledon 2nd true leaf

Arizona fescue

Page 9: Native and Non-native Plant Seedlings of Northern Arizonaopenknowledge.nau.edu/2513/1/Thurston_E_2005_SeedlingGuide.pdf · Poaceae Bromus tectorum cotyledon Characteristics: Blades:

Poaceae

Muhlenbergia montana

cotyledon w/ligule

Characteristics: Blades: 2.5-3 cm tall @ 1st true leaf, 1mm wide Culm: 5 mm between glume and 1st true leafOther: look for prominent ligule by 1st true leaf

Poa fendlerianaMuttongrass

Characteristics: Blades: curled tips; 4 cm tall @ 1st trueleaf, 0.5 mm wide; 6 cm tall @ 2nd true leaf, 2 mm wide Culm:0.5 cm between glume and 1st true leaf Other: look for “RRtracks” (2 median lines) by 2nd true leaf

8

cotyledon 2nd true leaf

Mountain muhly

1st true leaf

Page 10: Native and Non-native Plant Seedlings of Northern Arizonaopenknowledge.nau.edu/2513/1/Thurston_E_2005_SeedlingGuide.pdf · Poaceae Bromus tectorum cotyledon Characteristics: Blades:

Poaceae

Sporobolus cryptandrus

cotyledon

Characteristics: Blades: “strap-shaped” leaves; 1 cm @1st true leaf, 1 mm wide Culm: 2 mm between glume and 1sttrue leaf

1st true leaf

9

Sand dropseed

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Forbs- Asteraceae

Centaurea diffusa

cotyledons

Characteristics: Cotyledons: petioled; 4-7 mm long, 3-4mm wide True leaves: opposite simple leaves, “strap-shaped”;toothed margins; pubescent; 1 cm long, 4 mm wide Stem: 5-10mm @ cotyledons; 10 mm @ 1st true leaf

Packera multilobataLobeleaf groundsel

1st true leaf

10

cotyledons 1st true leaf

Diffuse knapweed

Characteristics: Cotyledons: petioled; round; 5 mmlong, 4 mm wide True leaves: single, simple, alternatelytoothed; 2 mm long, 1.5 mm wide Stem: variable; 3-15 mm @cotyledons; 3-15 mm @ 1st true leaves Other: may have purpleon bottom of leaves

Page 12: Native and Non-native Plant Seedlings of Northern Arizonaopenknowledge.nau.edu/2513/1/Thurston_E_2005_SeedlingGuide.pdf · Poaceae Bromus tectorum cotyledon Characteristics: Blades:

AsteraceaeSenecio eremophilus

cotyledons

Characteristics: Cotyledons: petioled; 5 mm long, 4 mmwide True leaves: single, simple; 8 mm long, 6 mm wide;alternately toothed; may be purple underneath; petiole ciliateStem: may be purple; 10 mm @ cotyledon & 1st true leaves

Lupinus argenteusSilver lupine

Characteristics: Cotyledons: fleshy, round, w/distinctpetiole; 5 mm long, 9 mm wide True leaves: single palmatelycompound leaf w/5 oblanceolate leaflets, each 2-4 mm long, 1mm wide; pubescent Stem: 1 cm @ cotyledons; 1-3 cm @ 1sttrue leaves

2nd true leaf

11cotyledons 1st true leaf

Desert ragwort

Fabaceae

Page 13: Native and Non-native Plant Seedlings of Northern Arizonaopenknowledge.nau.edu/2513/1/Thurston_E_2005_SeedlingGuide.pdf · Poaceae Bromus tectorum cotyledon Characteristics: Blades:

Fabaceae

Oxytropis lambertii

cotyledons

Characteristics: Cotyledons: sessile, fleshy, oval; 8 mmlong, 3-5 mm wide True leaves: many, linear, ciliate; 5 mmlong, 1-2 mm wide Stem: 1-1.5 cm @ cotyledons; 1-2 cm @ 1sttrue leaves

Vicia americanaAmerican vetch

Characteristics: Cotyledons: sessile; 2 mm long, 1 mmwide True leaves: single compound leaf, split all the way tomidvein; petioled, linear; 3-5 mm long, 1-2 mm wide Stem: 10mm @ cotyledon; 10-15 mm @ 1st true leaves

true leaves

12

cotyledons 1st true leaf

Lambert’s locoweed

Page 14: Native and Non-native Plant Seedlings of Northern Arizonaopenknowledge.nau.edu/2513/1/Thurston_E_2005_SeedlingGuide.pdf · Poaceae Bromus tectorum cotyledon Characteristics: Blades:

RosaceaePotentilla crinita

cotyledons

Characteristics: Cotyledons: round, petioled; 2 mmlong, 2 mm wide True leaves: single simple leaf; three lobes;ciliate; 2-3 mm long Stem: irregular stem; 3-10 mm @ cotyle-don; 10 mm @ 1st true leaf

Linaria dalmaticaDalmatian toadflax

Characteristics: Cotyledons: sessile, pointed tip; 2 mmlong, 1 mm wide Stem: can be purple; 10-20 mm @ cotyledon

13cotyledons

Bearded cinquefoil

Scrophulariaceae

1st true leaf

Page 15: Native and Non-native Plant Seedlings of Northern Arizonaopenknowledge.nau.edu/2513/1/Thurston_E_2005_SeedlingGuide.pdf · Poaceae Bromus tectorum cotyledon Characteristics: Blades:

Scrophulariaceae

Verbascum thapsus

cotyledons

Characteristics: Cotyledons: sessile, ciliate, rounded tip;1 mm long, 1 mm wide Stem: 5 mm @ cotyledons

14

Common mullein

Page 16: Native and Non-native Plant Seedlings of Northern Arizonaopenknowledge.nau.edu/2513/1/Thurston_E_2005_SeedlingGuide.pdf · Poaceae Bromus tectorum cotyledon Characteristics: Blades:

Shrubs- AnacardiaceaeRhus trilobata

cotyledons

Characteristics: Cotyledons: sessile to subsessile, oval; 7mm long, 4 mm wide; pink tint underneath; petioles < 1 mmlong True leaves: single, compound, leaflets ternate w/3lobes per leaflet, 1.5-2 cm long, 1 cm wide Stem: 1-1.5 cm @cotyledons, 1.5-2.5 cm @ 1st true leaf; pink tint

Ephedra viridisMormon tea

Characteristics: Cotyledons: none (gymnosperm); 2leaves initially emerge from seed, much like cotyledons Trueleaves: resemble pine needles; round; 1-2 cm long, 1-2 mm indiameter Stem: 5 mm

1st true leaf

15true leaves w/seed true leaves

Skunkbush sumac

Ephedraceae

Page 17: Native and Non-native Plant Seedlings of Northern Arizonaopenknowledge.nau.edu/2513/1/Thurston_E_2005_SeedlingGuide.pdf · Poaceae Bromus tectorum cotyledon Characteristics: Blades:

Rhamnaceae

Ceanothus fendleri

cotyledons

Characteristics: Cotyledons: fleshy, round, sessile; 5 mmlong, 3 mm wide Stem: 9-25 mm @ cotyledons Other: ciliateroots

16

Fendler’s ceanothus

Page 18: Native and Non-native Plant Seedlings of Northern Arizonaopenknowledge.nau.edu/2513/1/Thurston_E_2005_SeedlingGuide.pdf · Poaceae Bromus tectorum cotyledon Characteristics: Blades:

Glossary

Awn- A needle-like extension of the grass floret.Bract- A modified leaf at the base of a flower or flower clus-ter. It may resemble a normal leaf, be reduced and scale-likein appearance, or large and brilliantly colored.Ciliate- Fringed with hairs on the edge.Cotyledon- The first leaf, pair or whorl of leaves to showafter germinating; a seed leaf.Culm- The jointed stalk or stem of grasses, usually hollowexcept at the nodes.Floret- A small flower, usually one of a dense cluster.Glume- The bracteal covering of the flowers or seeds ofgrain and grasses.Ligule- The projecting, usually tongue-like, membranousend of the lining of the leaf sheath, seen at the base of theleaf, between it and the stalk.Node- Points on a stem from which leaves, shoots, or flow-ers grow.Petiole- The stalk of a leaf.Pubescent- Fuzzy, covered with down or hairs.Sessile- Leaves and other plant parts that have no stalk, butinstead grow directly from the stem of the plant.Simple leaf- This is a leaf that consists of a single blade,unlike a compound leaf, which has two or more. Ternate- Arranged in three's; especially said of a leaf withthree leaflets, or of leaves whorled in three's.

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Page 19: Native and Non-native Plant Seedlings of Northern Arizonaopenknowledge.nau.edu/2513/1/Thurston_E_2005_SeedlingGuide.pdf · Poaceae Bromus tectorum cotyledon Characteristics: Blades:

Appendix A: Species planted but not included dueto growing difficulty

Family Genus Species

Asteraceae Solidago velutinaChenopodiaceae Atriplex canescensPoaceae Achnatherum hymenoidesRosaceae Amelanchier utahensisRosaceae Rosa woodsii

Appendix B: Species recommended but not included

Family Genus Species

Apiaceae Lomatium foeniculaceumApiaceae Pseudocymopterus montanusAsteraceae Achillea millefoliumAsteraceae Agoseris glaucaAsteraceae Antennaria parvifoliaAsteraceae Artemisia carruthiiAsteraceae Artemisia dracunculusAsteraceae Artemisia ludovicianaAsteraceae Bahia dissectaAsteraceae Brickellia grandifloraAsteraceae Cirsium vulgareAsteraceae Cirsium wheeleriAsteraceae Conyza canadensisAsteraceae Coreopsis tinctoriaAsteraceae Ericameria nauseosaAsteraceae Erigeron colomexicanusAsteraceae Erigeron divergensAsteraceae Erigeron flagellarisAsteraceae Erigeron formosissimusAsteraceae Erigeron neomexicanus

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Page 20: Native and Non-native Plant Seedlings of Northern Arizonaopenknowledge.nau.edu/2513/1/Thurston_E_2005_SeedlingGuide.pdf · Poaceae Bromus tectorum cotyledon Characteristics: Blades:

Family Genus Species

Asteraceae Erigeron speciosusAsteraceae Gnaphalium exilifoliumAsteraceae Helianthella quinquenervisAsteraceae Heliomeris multifloraAsteraceae Heterotheca villosaAsteraceae Hieracium fendleriAsteraceae Hymenoxys bigeloviiAsteraceae Hymenoxys richardsoniiAsteraceae Lactuca serriolaAsteraceae Laennecia schiedeanaAsteraceae Machaeranthera canescensAsteraceae Pseudognaphalium macouniiAsteraceae Pyrrocoma croceaAsteraceae Senecio actinellaAsteraceae Senecio wootoniiAsteraceae Symphyotrichum falcatumAsteraceae Taraxacum officinaleAsteraceae Tragopogon dubiusBoraginaceae Lappula occidentalisBoraginaceae Lithospermum multiflorumBrassicaceae Arabis fendleriBrassicaceae Thlaspi montanumCaprifoliaceae Symphoricarpos oreophilusCaryophyllaceae Arenaria fendleriCaryophyllaceae Arenaria lanuginosa

ssp. saxosaChenopodiaceae Chenopodium albumChenopodiaceae Chenopodium graveolensChenopodiaceae Chenopodium leptophyllumConvolvulaceae Convolvulus arvensisFabaceae Astragalus castaneiformisFabaceae Astragalus humistratusFabaceae Lathyrus lanszwertii

var. leucanthusFabaceae Lupinus kingii

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Page 21: Native and Non-native Plant Seedlings of Northern Arizonaopenknowledge.nau.edu/2513/1/Thurston_E_2005_SeedlingGuide.pdf · Poaceae Bromus tectorum cotyledon Characteristics: Blades:

Family Genus Species

Fabaceae Melilotus officinalisFabaceae Phaseolus angustissimusFabaceae Thermopsis montana

var. montanaFumariaceae Corydalis aureaGeraniaceae Geranium caespitosumLamiaceae Marrubium vulgareLinaceae Linum lewisiiMalvaceae Malva neglectaMalvaceae Sphaeralcea parvifloraNyctaginaceae Mirabilis decipiensNyctaginaceae Mirabilis linearisOnagraceae Epilobium brachycarpumOnagraceae Gayophytum diffusumOnagraceae Oenothera caespitosaPoaceae Bromus ciliatusPoaceae Bromus inermisPoaceae Elymus trachycaulus

ssp. trachycaulusPoaceae Hordeum jubatumPoaceae Muhlenbergia rigensPoaceae Muhlenbergia wrightiiPoaceae Panicum bulbosumPoaceae Piptochaetium pringleiPoaceae Poa pratensisPoaceae Schizachyrium scopariumPoaceae Sporobolus interruptusPolemoniaceae Ipomopsis aggregataPolemoniaceae Phlox gracilisPolygonaceae Eriogonum alatumPolygonaceae Eriogonum cernuumPolygonaceae Eriogonum racemosumPolygonaceae Polygonum douglasiiPolygonaceae Rumex crispusPortulacaceae Portulaca oleracea 20

Page 22: Native and Non-native Plant Seedlings of Northern Arizonaopenknowledge.nau.edu/2513/1/Thurston_E_2005_SeedlingGuide.pdf · Poaceae Bromus tectorum cotyledon Characteristics: Blades:

Family Genus Species

Primulaceae Androsace septentrionalisRanunculaceae Thalictrum fendleriRosaceae Potentilla hippianaRosaceae Potentilla subviscosaRubiaceae Houstonia wrightiiScrophulariaceae Castilleja linariifoliaScrophulariaceae Mimulus rubellusScrophulariaceae Orthocarpus luteusScrophulariaceae Penstemon barbatusScrophulariaceae Penstemon linarioidesSolanaceae Nicotiana attenuata

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