Myriophyllum alterniflorum

Myriophyllum aquaticum

Myriophyllum crispatum

Myriophyllum heterophyllum

Myriophyllum "brasiliensis" trade name

Myriophyllum simulans

Myriophyllum spicatum

Myriophyllum tuberculatum

Myriophyllum verticillatum

leaves in whorls of 3-4(-5) leaves in whorls of (4-)5-6 leaves in whorls of 4-5 leaves in whorls of 4-5 leaves in whorls of 4-5 leaves in whorls of 4 leaves in whorls of 4-5(-6) leaves in whorls of 5 leaves in (pseudo)whorls of 4-5(-6)
emergent leaves minute emergent leaves pinnate, glaucous emergent leaves pinnate, rigid emergent leaves non-pinnate, toothed emergent leaves pinnate, stem red emergent leaves non-pinnate, margin entire emergent leaves minute emergent leaves pinnate emergent leaves pinnate
internodes same length as leaves internodes half of length of leaves internodes same length to 1/4 of length of leaves internodes 1/4 of length of leaves internodes 1/2 to 1/4 of length of leaves internodes 1/2 to 1/4 of length of leaves internodes same length as leaves internodes 1/4 of length of leaves internodes 1/2 of length of leaves