Sium

• water parsnip

  Stout white-flowered perennial found wild in shallow fresh water; northern United...

• greater water parsnip

  Large stout white-flowered perennial found wild in shallow fresh water; E...

• skirret

  An Asiatic herb cultivated in Europe for its sweet edible tuberous root.

Genus Veronica

• brooklime

  Plant of western North America and northeastern Asia having prostrate stems with dense...

• brooklime

  European plant having low-lying stems with blue flowers; sparsely naturalized in North...

Ranunculus

• lesser spearwort

  Semiaquatic Eurasian perennial crowfoot with leaves shaped like spears; naturalized...

• greater spearwort

  Semiaquatic European crowfoot with leaves shaped like spears.

Also contains

• sedge

  Grasslike or rushlike plant growing in wet places having solid stems, narrow grasslike leaves...

• rush

  Grasslike plants growing in wet places and having cylindrical often hollow stems.

• calamus

  Perennial marsh plant having swordlike leaves and aromatic roots.

• cattail

  Tall erect herbs with sword-shaped leaves; cosmopolitan in fresh and salt marshes.

• sabbatia

  Any of various plants of the genus Sabbatia having usually pink cymose flowers; occur from...

• water plantain

  Marsh plant having clusters of small white or pinkish flowers and broad pointed or...

• parnassia

  Any of various usually evergreen bog plants of the genus Parnassia having broad smooth...

• yellow-eyed grass

  Any of several rushlike plants, especially of the pine barrens of southern United...

• marsh elder

  Any of various coarse shrubby plants of the genus Iva with small greenish flowers; common...

• skunk cabbage

  Deciduous perennial low-growing fetid swamp plant of eastern North America having...

• kingcup

  Swamp plant of Europe and North America having bright yellow flowers resembling butterc...

• arrow grass

  Tufted perennial found in shallow water or marshland; sometimes poisons livestock.

• shellflower

  Showy perennial of marshlands of eastern and central North America having waxy lanceolate...

• water dragon

  North American herbaceous perennial of wet places having slender curled racemes of...

• wild calla

  Plant of wetlands and bogs of temperate regions having small greenish flowers partly...

• skunk cabbage

  Clump-forming deciduous perennial swamp plant of western North America similar to...