Ridged Water-milfoil
Myriophyllum porcatum
Brittle sparsely-branching aquatic plant to 40m cm in lenth growing in open water. Flowers are sessile, occur in sparsely branched or simple spikes, and are located in leaf axils, with male flowers arranged higher on spike, the female flowers below. Fruit is cylindrical and ribbed. Separate male and female flowers in a spike, male flowers towards the top.
| Details | |
|---|---|
| Flora Type | Herbs |
| Distinctive Features | Leaves take two forms. Submerged leaves are feathey and dark green in whorls of 4_5. Emergent leaves are waxy bluish-green, have 2_6 lobes at base, and occur in whorls of 3_5. |
| Biology | Annual aquatic in shallow ephemeral wetlands. Little is known of its ecology. Seed may persist when the wetland dries out, germinating once the wetland refills. |
| Native Status | Native |