Which plant type is characterized by having showy flowers, woody stems, and net veination?

The correct answer is identified as a forb. Forbs are flowering plants that are known for their showy flowers and broad leaves. They typically possess a woody or herbaceous stem and exhibit net veination in their leaves, which is a distinctive feature that helps in identifying them. This net-like pattern is due to the presence of a vascular system that includes both primary veins and smaller secondary veins, creating a network that supports the structure and function of the leaf.

In contrast, other plant types such as sedges, grasses, and rushes exhibit different characteristics. Sedges are generally grass-like but are distinguished by their triangular stems and solid inner stalk, while grasses tend to have narrow leaves with parallel vein patterns and hollow stems. Rushes also feature grass-like appearances, but they usually have round stems and may not display the showy flowers typical of forbs.

Thus, the traits of showy flowers, woody stems, and net veination are uniquely characteristic of forbs, making this the appropriate choice for the question.