Lansdown R.V. & Pankhurst T.J., Field Guide to the Identification of Difficult Aquatic Plants of the New Forest

Notes & Purpose	Status	Taxon	English	Classification
For identification	Current	Isoetes echinospora	Spring Quillwort	Plantae: Isoetales: Isoetaceae
For identification	Current	Acorus calamus	Sweet-flag	Plantae: Acorales: Acoraceae
For identification	Current	Acorus gramineus	Slender Sweet-flag	Plantae: Acorales: Acoraceae
For identification	Current	ALISMATACEAE	water-plantains	Plantae: Alismatales
For identification	Current	Lemna	duckweeds	Plantae: Alismatales: Araceae
For identification	Current	Butomus umbellatus	Flowering-rush	Plantae: Alismatales: Butomaceae
For identification	Current	HYDROCHARITACEAE	waterweeds	Plantae: Alismatales
For identification	Current	JUNCAGINACEAE	arrowgrasses	Plantae: Alismatales
For identification	Current	POTAMOGETONACEAE	pondweeds	Plantae: Alismatales
For identification	Current	Zannichellia palustris	Horned Pondweed	Plantae: Alismatales: Potamogetonaceae
For identification	Current	Iris pseudacorus	Yellow Iris, Yellow Flag	Plantae: Asparagales: Iridaceae
For identification	Current	Pontederia cordata	Pickerelweed	Plantae: Commelinales: Pontederiaceae
For identification	Current	Apium	fool’s water-cresses, marshworts & celeries	Plantae: Apiales: Apiaceae
For identification	Current	Berula erecta	Lesser Water-parsnip	Plantae: Apiales: Apiaceae
For identification	Current	Oenanthe	water-dropworts	Plantae: Apiales: Apiaceae
For identification	Current	Hydrocotyle	pennyworts	Plantae: Apiales: Araliaceae
For identification	Current	Bidens	bur-marigolds	Plantae: Asterales: Asteraceae
For identification	Current	Nymphoides peltata	Fringed Water-lily	Plantae: Asterales: Menyanthaceae
For identification	Current	Myosotis	forget-me-nots	Plantae: Boraginaceae
For identification	Current	Cardamine	bitter-cresses	Plantae: Brassicales: Brassicaceae
For identification	Current	Rorippa	yellow-cresses and water-cresses	Plantae: Brassicales: Brassicaceae
For identification	Current	Illecebrum verticillatum	Coral Necklace, Coral-necklace	Plantae: Caryophyllales: Caryophyllaceae
For identification	Current	Stellaria alsine	Bog Stitchwort	Plantae: Caryophyllales: Caryophyllaceae
For identification	Current	Drosera	sundews	Plantae: Caryophyllales: Droseraceae
For identification	Current	Montia fontana	Blinks	Plantae: Caryophyllales: Montiaceae
For identification	Current	Persicaria	knotweeds	Plantae: Caryophyllales: Polygonaceae
For identification	Current	CERATOPHYLLACEAE	hornworts	Plantae: Ceratophyllales
For identification	Current	Anagallis	pimpernels	Plantae: Ericales: Primulaceae
For identification	Current	Hottonia palustris	Water-violet	Plantae: Ericales: Primulaceae
For identification	Current	Cicendia filiformis	Yellow Centaury	Plantae: Gentianales: Gentianaceae
For identification	Current	Galium	bedstraws	Plantae: Gentianales: Rubiaceae
For identification	Current	Callitriche	water-starworts	Plantae: Lamiales: Plantaginaceae
For identification	Current	Littorella uniflora	Shoreweed	Plantae: Lamiales: Plantaginaceae
For identification	Current	Veronica	speedwells	Plantae: Lamiales: Plantaginaceae
For identification	Current	Limosella aquatica	Mudwort	Plantae: Lamiales: Scrophulariaceae
For identification	Current	ELATINACEAE	waterworts	Plantae: Malpighiales
For identification	Current	Lythrum portula	Water-purslane	Plantae: Myrtales: Lythraceae
For identification	Current	Ludwigia palustris	Hampshire Purslane, Hampshire-purslane	Plantae: Myrtales: Onagraceae
For identification	Current	Myosurus minimus	Mousetail	Plantae: Ranunculales: Ranunculaceae
For identification	Current	Ranunculus	buttercups and crowfoots	Plantae: Ranunculales: Ranunculaceae
For identification	Current	Crassula helmsii	New Zealand Pigmyweed	Plantae: Saxifragales: Crassulaceae
For identification	Current	Myriophyllum	water milfoils	Plantae: Saxifragales: Haloragaceae
For identification	Current	CYPERACEAE	cotton-grasses, spike-rushes and sedges	Plantae: Poales
For identification	Current	Juncus	rushes	Plantae: Poales: Juncaceae
For identification	Current	Phragmites australis	Common Reed	Plantae: Poales: Poaceae
For identification	Current	Leersia oryzoides	Cut-grass	Plantae: Poales: Poaceae
For identification	Current	Glyceria	sweet-grasses	Plantae: Poales: Poaceae
For identification	Current	Agrostis stolonifera	Creeping Bent	Plantae: Poales: Poaceae
For identification	Current	Alopecurus geniculatus	Marsh Foxtail	Plantae: Poales: Poaceae
For identification	Current	Catabrosa aquatica	Whorl-grass	Plantae: Poales: Poaceae
For identification	Current	Phalaris arundinacea	Reed Canary-grass	Plantae: Poales: Poaceae
For identification	Current	Sparganium	bur-reeds	Plantae: Poales: Typhaceae
For identification	Current	Typha	bulrushes, reedmaces	Plantae: Poales: Typhaceae
For identification	Current	Nuphar lutea	Yellow Water-lily	Plantae: Nymphaeales: Nymphaeaceae
For identification	Current	Nymphaea alba	White Water-lily	Plantae: Nymphaeales: Nymphaeaceae
For identification	Current	CHARACEAE	stoneworts	Plantae: Charales
For identification	Current	Equisetum	horsetails	Plantae: Equisetales: Equisetaceae
For identification	Current	Pilularia globulifera	Pillwort	Plantae: Salvinales: Marsileaceae
For identification	Current	Azolla filiculoides	Water Fern	Plantae: Salvinales: Salvinaceae

Author	Lansdown R.V. & Pankhurst T.J.
Title	Field Guide to the Identification of Difficult Aquatic Plants of the New Forest
Type	Private publication
How Complete	All the aquatic macrophytes recorded in the New Forest
Illustrations	Line drawings and scanned leaves at the back
Review (by Malcolm Storey)	A field guide to aquatic and some marginal/wet mud plants, including aliens, recorded from the New Forest. The coverage is wide but more detail is given for the "difficult" groups. Although restricted to the New Forest, that area is so rich, that most species found in the south of England are covered. The first part starts with a key to 14 sections based on vegetative characters. A key to genera for each section follows. The second part examines each genus, commencing with the Charophytes, followd by the other genera in alphabetical order. In a few cases there is simply a reference to other literature (especially the Plant Crib, 1998). Otherwise the treatment varies from hints on how to distinguish the plants to a full key to the New Forest species.
Examine	in the Hand ( with x8 or x10 hand lens is also useful)
Specimen Preparation	Fresh or pressed specimens

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