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Araceae (Acoraceae)

Acorus

Acorus calamus (Sweetflag)

Specimen	Rhizome	Foliage	Spike

Cyperaceae

Carex

Carex albursina (White Bear Sedge)

Plant	Base	Flowering Plant
Sterile Shoot	Spike

Carex annectens (Yellow-Fruited Sedge)

Spikes	Spikes	Inflorescence	Perigynium (Dorsal)
Achene & Perigynium	Fruits, Perigynia, & Bracts		Perigynium (Ventral)

Carex appalachia (Appalachian Sedge)

Foliage	Culm	Spike	Infl

Carex arctata (Drooping Wood Sedge)

Speciman	Base	Inflorescence	Perigynia

Carex bebbii (Bebb's Sedge)

(No Photo Available)

Carex blanda (Woodland Sedge)

Base	Leaves	Lower Spk	Infl	Upper Spks

Carex bromoides (Bromelike Sedge)

Inflorescence	Spikes	Spike	Perigynia & Bract

Carex communis (Fibrous-root Sedge)

Plant	Base		Terminal	Spike
Base	Plant	Spikes	Spikes	Perigynia

Carex comosa (Bristly Sedge)

In Marsh	Perigynia on Spike	Perigynia with Bract	Plant
Achene and Perigynia		Pistillate Spike	Inflorescense

Carex crinita (Fringed Sedge)

Inflorescence	Pistillate Spikes	Inflorescence	Plant

Carex cristatella (Crested Sedge)

Perigynium Beak	Fruits	Infl	Spikes
Spikes	Base of Spike	Spikes

Carex gracillima (Graceful Sedge)

Spikes	Base	Inflorescence	Pistillate Spike	Pistillate Spike
Plant	Inflorescence	Terminal Spike	Terminal Spike	Perigynia

Carex granularis (Meadow Sedge)

Spikes	Spikes	Spikes	Spikes and Bract	Spikes

Carex laxiculmis (Spreading Sedge)

Plant	Terminal Spikes	Base	Spike	Spikes
Culms	Terminal Spikes	Basal Spike		Culm

Carex laxiflora (Loose-Flowered Sedge)

Plant	Inflorescence		Spike
Foliage	Foliage	Spike	Perigynia	Spikes

Carex lupulina (Hop Sedge)

Spikes	Plant	Spikes
Spikes	Spike	Perigynia

Carex lurida (Sallow Sedge)

Pistillate Spikes	Pistillate Spike	Perigynia w/ Bract	Achene w/ Perigynia

Carex normalis (Greater Straw Sedge)

Specimen	Inflorescence

Carex pallescens (Pale Sedge)

Spikes	Spike	Plant	Base of Plant

Carex pedunculata (Long-stalked Sedge)

Specimen	Culms	Spikes

Carex plantaginea (Plantain-Leaved Sedge)

Culm	Whole Plant, Spring	Culm	Summer	Plant	Base

Carex projecta (Necklace Sedge)

Inflorescence	Mature	Maturing	Leaf Sheath
Spikes	Fruits	Spike	Leaf Sheath

Carex radiata (Stellate Sedge)

Plant	Inflorescence	Spike

Carex retrorsa (Retrorse Sedge)

Specimen	Inflorescence	Spike

Carex rosea (Star-Shaped Sedge)

Specimen	Inflorescence	Spikes

Carex scoparia (Pointed Broom Sedge)

Spike	Spike	Spikelet	Perigynia

Carex stipata (Awl-Fruited Sedge)

Spike	Spike	Spike
Plant		Spike

Carex swanii (Small Downy Green Sedge)

Perigynia		Spikes	Terminal
Pistillate	Perigynia	Detail	Terminal

Carex tribuloides (Blunt Broom Sedge)

Spikes	Sheath	Sheath

Carex vulpinoidea (Fox Sedge)

Specimen	Inflorescence	Spikes	Perigynia

Cyperus

Cyperus bipartitus (Slender Flatsedge)

Plant	Infl	Inflorescence	Spikes

Cyperus esculentus (Yellow Nutsedge)

Plant	Spiles	Sikes	Roots with Tuber	Tuber	Young Tubers

Cyperus strigosus (False Nutsedge)

Plants	Inflorescence	Inflorescence	Spikes

Dulichium

Dulichium arundinaceum (Three-Way Sedge)

Spikes	Infl	Infl	Spikes	Male Phase	Female Phase	Sheath

Eleocharis

Eleocharis acicularis (Slender Spikerush)

Plants	Spikes	Colony in Lawn	Close Up

Eleocharis obtusa (Blunt Spikerush)

Plant	Spikes	Base	Close Up	Spike	Achenes

Eleocharis palustris (Creeping Spikerush)

Plants	Spikes	Base	Close Up	Base	Plants in Field

Schoenoplectus

Schoenoplectus tabernaemontani (Scirpus tabernaemontani) (Soft-Stem Bulrush)

In Pond	Edge of Pond	Inflorescence	Inflorescence	Spike	Achene

Scirpus

Scirpus atrovirens (Woolgrass Bulrush)

Plant	Inflorescence	Spikes

Scirpus cyperinus (Cottongrass Bulrush)

Inflorescence	Inflorescence	Spikes	Fruits & Scales

Scirpus pendulus (Pendulous Bulrush)

Inflorescence	Spikes	Fruits & Scale

Juncaceae

Juncus

Juncus alpinoarticulatus ssp. americanus (Alpine Rush)

In Field	Inflorescence	Sheath

Juncus bufonius (Toad Rush)

In Field	Plant	Inflorescence	Spikes

Juncus dudleyi (Dudley's Rush)

Infl	Base	Auricles	Fruits	Auricles

Juncus effusus var. solutus (Smooth Rush)

Inflorescence	Detail

Juncus nodosus (Knotted Rush)

Specimen	Inflorescense

Juncus tenuis (Slender Yard-Rush)

Plant	Base	Fruit	Auricles
Flowers	Flowers	Flower	Sheath

Luzula

Luzula multiflora (L. campestris var. multiflora) (Common Woodrush)

Inflorescence	Spike	Capsules	Stem	Base

Poaceae

Agrostis

Agrostis gigantea (Black Bentgrass, Redtop)

Branching Pattern	Inflorescence
Spikelets	Spikelet	Fruiting

Agrostis stolonifera (Creeping Bentgrass)

Turf	Mature Inflorescence	Fruiting Culms	Young Infl	Branch	Spikelet
Close Up	Inflorescence Tip	Spikelet	Node

Anthoxanthum

Anthoxanthum odoratum (Sweet Vernal Grass)

Spike	Spikes	Flowering	Close Up	Spikelets

Arrhenatherum

Arrhenatherum elatius (Tall Oatgrass)

Specimen	Spiklets

Bromus

Bromus commutatus (Hairy Brome)

Spikelet

Bromus inermis (Smooth Brome)

Inflorescence	Spiklet	Lemma	Sheath
Branch	Floret	Glumes	Ligules

Cinna

Cinna arundinacea (Stout Woodreed)

Inflorescence	Leaves	Infl

Dactylis

Dactylis glomerata (Orchard Grass)

Flowering	Branch of Inflorescence	Spikelet

Danthonia

Danthonia compressa (Northern Oatgrass)

Inflorescence	Spiklets	Spiklet	Fruiting

Danthonia spicata (Poverty Oatgrass)

Specimen	Spikelets	Spikelet	Lemma Teeth

Dichanthelium

Dichanthelium acuminatum (Hairy Panic Grass)

Inflorescence	Spiklets	Secondary Panicle	Ligule	Basal Leaves

Digitaria

Digitaria ischaemum (Smooth Crabgrass)

Plant	Base	Foliage	Rachis	Spike
Plant	Floret	Inflorescence	Spike	Spike

Echinochloa

Echinochloa crus-galli (Barnyard Grass)

Spikes	Spike	Spikelets	Spikelet

Echinochloa muricata (Rough Barnyard Grass; Cockspur Grass)

Inflorescence	Branch		Spiklet - Dorsal
Spiklets	Sheath	Sheath	Spiklet - Ventral

Echinochloa walteri (Walter's Barnyard Grass; Water-Millet)

Fruiting	Inflorescense	Leaf Sheath
Spiklets	Spiklet	Fruiting	Leaf Sheath

Elymus

Elymus repens (Elytrigia repens) (Creeping Wild-Rye; Quack-Grass)

Detail	Spikelet	Spike

Elymus virginicus (Virginia Wild-Rye)

Head	Spikelets	Sheath

Eragrostis

Eragrostis minor (Lovegrass)

Spikelet	Detail	Inflorescence

Festuca

Festuca rubra (Red Fescue)

Inflorescence	Spikelet	Base

Festuca trachyphylla (Sheep Fescue; Hard Fescue)

Spiklets	Spikelet	Branch		Mature
Close	Spiklet	Spiklet	Infl	Node

Glyceria

Glyceria grandis (American Mannagrass)

Specimen	Infl.	Spiklets

Glyceria melicaria (Slender Manna Grass)

Specimen	Spikelets

Glyceria striata (Fowl Mannagrass)

Mature Spikelets	Close Up	Spikelet
Fruit (Caryopsis)	Inflorescence	Sterile Shoot

Holcus

Holcus lanatus (Velvet Grass)

Spikelets	Inflorescence	Sheath	Spike	Floret

Leersia

Leersia oryzoides (Rice Cutgrass)

Inflorescence	Spiklets	Spikelets	Node

Leersia virginica (Whitegrass)

Infl	Branch	Spiklets	Inflorescence	Inflorescence

Lolium

Lolium perenne (Perennial Ryegrass)

Specimen	Spikelets

Muhlenbergia

Muhlenbergia frondosa (Wirestem Muhly)

Specimen	Inflorescence

Panicum

Panicum capillare (Old Witch Panicgrass; Common Wiregrass)

In Field	Inflorescence Branch	Inflorescence	Node
Base	Node	Spikelets	Leaf Sheath
Spikelet	Leaf Sheath	Spikelets

Panicum dichotomiflorum (Fall Panicgrass)

In Field		Leaf Sheath	Leaf Sheath	Spikelets
Base	Infl	Node	Spikelet	Spikelets

Phalaris

Phalaris arundinacea (Reed Canary-Grass)

Inflorescence	Mature	Mature Floret	Plants in Field	Foliage

Phleum

Phleum pratense (Timothy)

Detail	Spike	Bulb	Spikelet
Spike			Spikelet w/ Fruit

Phragmites

Phragmites australis (Common Reed)

Colony			Inflorescence - Detail
Shoots	Leaf	Leaf	Infl	Spiklets

Poa

Poa alsodes (Woodland Bluegrass)

Specimen	Inflorescense	Spiklets

Poa annua (Annual Bluegrass)

Specimen	Plant	Spikelets

Poa compressa (Canada Bluegrass)

Spikelet	Spikelet	Inflorescence Branch	Inflorescence Branch	Inflorescence

Poa pratensis (Kentucky Bluegrass)

Inflorescence	Infl	Spiklet	Lemmas

Poa saltuensis (Oldpasture Bluegrass)

Specimen	Inflorescence	Spikelets

Poa trivialis (Rough Bluegrass)

Spikelet	In Field

Schedonorus

Schedonorus pratensis (Lolium pratense) (Meadow Fescue)

Specimen	Inflorescence	Spikelets	Ligule

Setaria

Setaria faberi (Giant Foxtail)

Plant	Spike	Base of Spike	Spikelets

Setaria pumila (Yellow Foxtail)

Spike	Spike	Base of Spike	Spikelets

Setaria viridis (Green Foxtail)

Plant	Spike	Base of Spike	Spiklets

Torreyochloa

Torreyochloa pallida (Pale False Mannagrass)

Inflorescence	Spikes	Spikelet	Florets	Inflorescences

Sparganiaceae

Sparganium

Sparganium americanum (Bur-Reed)

Plants	Infl	Pistillate Head

Sparganium eurycarpum (Bur-Reed)

Staminate Heads	Staminate Heads	Developing Fruits
Pistillate Head	Pistillate Head	Pistillate Head	Inflorescence

Typhaceae

Typha

Species	Germinating Seeds	Spring	Marsh - Early Spring	Marsh - Early Summer

Typha angustifolia (Narrow-Leaf Cat-Tail)

Inflorescence	Plants	Young Inflorescence
Female Spike Surface		Magnified

Typha x glauca (Cat-Tail)

Inflorescence		Female Spike Surface
Young Inflorescence	Plants	Magnified

Typha latifolia (Broad-Leaf Cat-Tail)

Inflorescence	Young Infl.	Plant
Female Spike Surface	Magnified