Echinodorus cordifolius (Linnaeus) Grisebach
Alismataceae (Water Plantain) Family
Plant is an upright aquatic with rhizomes from which new growth emerges. Preferred habitat is quiet waters, ditches, pond and lake margins, brackish pools. Distribution is throughout the Escambia region.
Leaves are large; spatula-shape on stalks arising from nodes; parallel veins; numerous glands; no teeth and no lobes and blunt-tipped. Leaf base is nearly heart-shaped.
Flowers are whorls; white; stalked; 3-petal flowers with yellow discs; bisexual in nature and symmetrical in form.
Flowers occur in the summer. Fruit is a bur.
These plants are confusing at best. Often there is a tendency to include them with Arrowhead (Sagittaria) as there are many similarities; sprouting from rhizomes and corms; the broad heart-shaped leaves and three-petal flowers. The primary difference is that Arrowhead sends up a long flowering stem; the male flowers being at the top with female below. Bur-Head will recede to its rhizome during drought periods and remain dormant for several weeks until the next rainfall has replenished its pool. The plant sends out a rope-like stolon and the flower head cluster develops at the stolon node.