Chasmanthium sessiliflorum (TVA, White's Creek Small Wild Area, Plants)

Chasmanthium sessiliflorum

Physical description ⁶

Perennials, Terrestrial, not aquatic, Rhizomes present, Rhizome short and compact, stems close, Basal sheaths fibrous, old leaves persistent at base of plant, Stems nodes swollen or brittle, Stems erect or ascending, Stems caespitose, tufted, or clustered, Stems terete, round in cross section, or polygonal, Stem nodes bearded or hairy, Stem internodes hollow, Stems with inflorescence less than 1 m tall, Stems with inflorescence 1-2 m tall, Stems, culms, or scapes exceeding basal leaves, Leaves mostly basal, below middle of stem, Leaves conspicuously 2-ranked, distichous, Leaves sheathing at base, Leaf sheath mostly open, or loose, Leaf sheath hairy, hispid or prickly, Leaf sheath hairy at summit, throat, or collar, Leaf sheath and blade differentiated, Leaf blades linear, Leaf blades 2-10 mm wide, Leaf bl ades 1-2 cm wide, Leaf blades mostly flat, Leaf blades mostly glabrous, Leaf blades more or less hairy, Ligule present, Ligule an unfringed eciliate membrane, Ligule a fringed, ciliate, or lobed membrane, Inflorescence terminal, Inflorescence an open panicle, openly paniculate, branches spreading, Inflorescence a contracted panicle, narrowly paniculate, branches appressed or ascending, Inflorescence solitary, with 1 spike, fascicle, glomerule, head, or cluster per stem or culm, Inflorescence branches more than 10 to numerous, Flowers bisexual, Spikelets pedicellate, Spikelets laterally compressed, Spikelet 3-10 mm wide, Spikelets with 2 florets, Spikelets with 3-7 florets, Spikelets solitary at rachis nodes, Spikelets all alike and fertille, Spikelets bisexual, Spikelets disarticulating above the glumes, glumes persistent, Spikelets disarticulating beneath or between the florets, Rachilla or pedicel glabrous, Glumes present, empty bracts, Glumes 2 clearly present, Glumes eq ual or subequal, Glumes equal to or longer than adjacent lemma, Glumes 1 nerved, Lemmas thin, chartaceous, hyaline, cartilaginous, or membranous, Lemma similar in texture to glumes, Lemma 8-15 nerved, Lemma glabrous, Lemma apex acute or acuminate, Lemma awnless, Lemma arcuate, Palea present, well developed, Palea about equal to lemma, Palea 2 nerved or 2 keeled, Stamens 1, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis.

Sources and Credits

(c) Mary Keim, some rights reserved (CC BY-NC-SA), http://farm4.static.flickr.com/3142/5850915080_3b396470e9.jpg
(c) "<a href=""http://www.pwrc.usgs.gov/WLI/"">USDA NRCS Wetland Science Institute</a>.", some rights reserved (CC BY-NC-SA), https://plants.usda.gov/gallery/large/chse2_002_lhp.jpg
(c) "<a href=""http://www.wli.nrcs.usda.gov"">NRCS National Wetland Team, Fort Worth, TX</a>.", some rights reserved (CC BY-NC-SA), https://plants.usda.gov/gallery/large/chse2_004_lvd.jpg
(c) licensed media from USDA PLANTS images without owner, some rights reserved (CC BY-NC-SA), http://plants.usda.gov/java/largeImage?imageID=unse2_001_avd.tif
(c) Smithsonian Institution, National Museum of Natural History, Department of Botany, some rights reserved (CC BY-NC-SA), https://collections.nmnh.si.edu/services/media.php?env=botany&irn=10401408
(c) Dr. David Bogler, some rights reserved (CC BY-NC-SA), http://eol.org/data_objects/6658206

More Info

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