Photographer: Carol Watkins
Alisma subcordatum Raf.
American water-plantain, common water-plantain, southern water-plantain
Alisma: Greek name for a water plant
subcordatum: sub for "below, almost, less so than a similar plant;" cor for "heart;" atus for likeness; hence "almost heart-shaped"
|Plant: ||erect or floating, perennial, semi-aquatic to aquatic, 4"-40" tall|
|Flower: ||white to pink, 3-parted, 1/8" wide, petals only slightly longer than the sepals; inflorescence taller than the leaves and with 4 or more whorls of flowers per stalk; blooms May-Sept.|
|Fruit:||dense ring of dry seeds; seed with 1 groove on the back|
|Leaf:||in basal rosette, with parallel veins, ovate to elliptical, long-stalked, smooth and firm, aquatic or terrestrial|
|Habitat: ||shallow water; in muddy soil|
|Notes: ||very similar to Alisma triviale whose flower is to 1/3" wide|