Like all other seagrasses, Johnson’s seagrass is clonal, which refers to plants that have many semi-independent units (ramets) acting together as a single organism. It is a perennial plant species that shows some decline in winter. Identifying characteristics of Johnson's seagrass include smooth margins, spatulate leaves in pairs 1 to 2 inches (2.5 to 5 cm) long, a creeping rhizome (a ...more ↓
Like all other seagrasses, Johnson’s seagrass is clonal, which refers to plants that have many semi-independent units (ramets) acting together as a single organism. It is a perennial plant species that shows some decline in winter. Identifying characteristics of Johnson's seagrass include smooth margins, spatulate leaves in pairs 1 to 2 inches (2.5 to 5 cm) long, a creeping rhizome (a horizontal subterranean plant stem like the runners on a Strawberry plant) with stalks attached to the leaves, sessile (attached to their bases) female flowers, and longnecked fruits. The male flowers are unknown. Outstanding differences between Johnson's seagrass and other similar species are its distinct asexual reproduction, and leaf shape and form.
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