In Maryland, specific species in a location can be narrowed by regions and climate. Regional divisions include: coastal, piedmont, and mountain. These can be further influenced by differentiating conditions that affect plant growth, such as solar exposure, and water availablity.
Grasses native to Maryland include: Broomsedge (Andropogon virginicus), Gama grass (Tripsacum dactyloides), Little bluestem (Schizachyrium scoparium).
Bay grasses native to Maryland include: Wild celery (Vallisneria americana), Redhead grass (Potamogeton perfoliatus), and Water stargrass (Heteranthera dubia).
Herbs native to Maryland include: Maryland golden aster (Chrysopsis mariana), Narrow-leaf sunflower (Helianthus angustifolius), and the State flower, Black-eyed Susan (Rudbeckia hirta).
Shrubs native to Maryland include: Blue-ridge blueberry (Vaccinium pallidum), Bunchberry (Cornus canadensis), and Wintergreen (Gaultheria procumbens).
Perhaps the most adaptive form of plant, vines and groundcovers are plants that exand beyond their primary stem, yet do not adhere to the definition of shrub or tree. These species primarily expand horizontally, so as to aquire sun or water beyond their initial growth, though some possess climing stems used to expand horizontally. One example of this classification is poison ivy, which can grow as a low groundcover, or as a climing vine, depending on its surroundings.
Groundcovers native to Maryland include: American bittersweet (Celastrus scandens), Crossvine (Bignonia capreolata), Trumpet creeper (Campsis radicans).
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