Shoreline plants found primarily along the edge of
Alligator Weed (Alternanthera philoxeroides)
Alligator Weed: Alligator weed is a perennial plant native to South America and often forms very dense stands or mats that make shoreline access difficult. Aquatic stems are hollow and can be single or branched. Leaves are opposite, long, elliptical or lance-shaped up to 3/4 inch wide and 5 inches long with a prominent midrib. Often roots develop at leaf nodes. Soft, whitish hairs are found in the leaf axis. Single flowers are small (about 1/2 inch in diameter) white, fragrant clusters of 6 to 10 florets, borne on long branches (to 3 inches). The flowers resemble those of white clover. A single seed develops within the fruit.
TEXAS RESIDENTS: THIS PLANT IS NOT NATIVE TO NORTH AMERICA AND IT IS ILLEGAL TO POSSESS OR TRANSPORT THIS SPECIES IN TEXAS. PLEASE REPORT SIGHTINGS OF THIS PLANT TO THE TEXAS PARK AND WILDLIFE DEPARTMENT.
Arrowhead (Sagittaria spp.)
Arrowhead: There are many species of Sagittaria but all are perennial plants that have arrowhead-shaped leaves.
Bulrush (Scirpus spp.)
Bulrush: There are several species of bulrushes. Bulrushes are perennial grass-like plants and can grow to 10 feet tall in shallow water or in moist soils. Soft-stem bulrush can grow to 10 feet and grows in dense colonies from rhizomes. Soft-stem bulrush has
Cattails (Typha spp.)
Cattails: Cattails have flat to slightly rounded leaves that twist slightly over their length and can grow to 5 or 10 feet in height. Flowers form a dense dark brown,
Maidencane: Maidencane is part of a family of perennial grasses that are common but somewhat hard to tell apart. Maidencane can grow up to 8 feet tall and often forms dense colonies. It has long, narrowly tapered leaves(up to 12 inches long and 1 inch wide) with rough upper surfaces and margins. Flowers are on a long narrow spike (up to 12 inches long). Maidencane forms extensive rhizomes by which it spreads rapidly.
Pickerelweed (Pontederia cordata)
Pickerelweed: Pickerelweed is a perennial plant that can grow up to 3 1/2 feet tall. Leaves are shiny green, heart-to-lance shaped(up to 7 inches long) singly attached to a long petiole which
Red Ludwigia (Ludwigia repens)
Red Ludwigia: A classic aquarium plant, grows along the margins of freshwater bodies of water (ditches, rivers, lakes, and ponds). A very polymorphic species in that it readily crosses over with other species of its genus. Similar to Water Primrose.
Smartweed or Water Pepper (Plygonum hydropiperoides)
Smartweed: Smartweed (or Water Pepper) is a perennial plant that forms dense colonies in shallow water or moist soils and can grow to 3 feet tall. Stems are jointed or have swollen leaf nodes that are surrounded by a tubular sheath. Roots can develop from the leaf nodes. Leaves are alternate, lance-shaped up to 4 inches long but usually less than 1/2 inch wide. Flowers are on spikes at the end of stems (often numerous spikes on the same plant). Flowers begin as greenish then turn whitish or light pink in color as they mature. Fruits are flat, triangular (1/8 inch), dark brown to black.
Water Pennywort (Hydrocotyle spp.)
Water Primrose (Ludwigia spp.)
Water Primrose: Water primrose is a perennial plant that stands erect along the shoreline but also forms long runners (up to 16 feet) that creep across wet soil or float out across the water surface. These runners form roots at their nodes. Leaves range from lance-shaped or willow-like (2 to inches long by 1/2 to 1 inch wide) on the erect stems to round or oval 91 to 2 inches in diameter on the floating stems. Leaves can be green to reddish depending on the species. The single flowers are yellow with 4 or 5 petals depending on the species. Flowers vary in size from 1 inch to 2 inches in diameter.