학명 : Schizachyrium scoparium (Michx.) Nash
분류 : Poaceae/ Panicoideae /Adropogoneae/ Schizachyrium
영어 이름으로 볼때 초체가 푸른빛을 띠는 것으로 보인다
사진 : 2022.03.03 푸른수목원
설명 1
Little Bluestem
Ornamental grasses have become very popular over the last several years. Little bluestem, Schizachyrium scoparium, is a North American prairie native found throughout the 48 contiguous states, except for the far western, coastal areas. As its name suggests, this perennial has silvery-blue stems (particularly at the base) and leaves, making it an attractive addition to the landscape. This warm-season, clumping grass performs well in most areas of the country, in zones 2 or 3-10.
Once established it is a drought-resistant, easy-care addition to the home landscape. This plant, like many other prairie grasses, has an extensive, deep root system, allowing it to do well on poor sites, such as the dry, upland sites and along hillsides and ridges where it is typically found growing naturally.
It is also useful for erosion control and provides food and wildlife habitat for songbirds, upland gamebirds, and small mammals. However, it is also readily grazed by deer.
Little bluestem clumps grow 1-2 feet high, until late summer when the stems elongate into flowering stems which may reach 5 feet. It has coarse stems and basal leaves. It is slow to emerge in the spring but continues to grow through the summer until the first killing frost. The new shoots are very flat and bluish. The leaves are soft-looking, narrow, and smooth, except at the base next to the sheath where they are often covered with hair. The foliage can be various shades of blue and green, and even with pinkish purple striations, depending on the selection or cultivar. The plants have an upright form but with their open to spreading habit and fine texture, they are susceptible to lodging (falling over at the base).
The stems are eventually topped in late summer or early fall by 3″ long, fluffy inflorescences that range in color from blue to silvery gold or white. The flowers are scattered in a single cluster, with long hairs creating a white, feathery appearance to the seedheads. The fluffy plumes look great backlit or as part of a cut arrangement. Frost turns the plants a reddish or coppery color that remains through the winter. If the plants are allowed to remain standing through the winter, they provide shape, texture, and color into the winter months.
Use little bluestem as an accent in the border, or in drifts in natural settings, prairies, or wildscapes that blend into the surrounding woods, pasture or other natural areas at the edge of the home landscape. Pair it with a dark-leaved Heuchera, such as ‘Purple Petticoats’, for contrast in both color and texture, or play up the purple highlights in the fall by placing it with a clump of autumn crocus (Colchicum) or pink -flowering chrysanthemum or aster. Combine it with perennials including tall sedums like ‘Autumn Joy’, yarrow, rudbeckias, purple or yellow coneflower (Echinacea purpurea and E. paradoxa, respectively), goldenrod and other prairie natives or wildflowers. It makes stunning displays when massed on a large scale, undulating in the breeze. It is a great transition plant between the garden and a natural field or meadow.
https://hort.extension.wisc.edu/articles/little-bluestem-schizachyrium-scoparium/
설명 2
Leaf blade width : 1.5–9 mm
Inflorescence branches : the flowers are attached to branches rather than to the main axis of the inflorescence
there are no branch points between the base of the inflorescence axis and the flowers, or they are not obvious
Spikelet length : 3–11 mm
Glume relative length : one or both glumes are as long or longer than all of the florets : there is one floret per spikelet
Lemma awn length : 0–17 mm
Leaf ligule length : 0.5–2 mm
https://gobotany.nativeplanttrust.org/species/schizachyrium/scoparium/
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https://gobotany.nativeplanttrust.org/species/schizachyrium/scoparium/