Difference between revisions of "Scirpus pedicellatus"
Rhodora 2: 16. 1900.
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|name=Scirpus cyperinus var. pedicellatus | |name=Scirpus cyperinus var. pedicellatus | ||
|authority=(Fernald) Schuyler | |authority=(Fernald) Schuyler | ||
+ | |rank=variety | ||
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|hierarchy=Cyperaceae;Scirpus;Scirpus pedicellatus | |hierarchy=Cyperaceae;Scirpus;Scirpus pedicellatus | ||
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name=Scirpus pedicellatus | name=Scirpus pedicellatus | ||
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|authority=Fernald | |authority=Fernald | ||
|rank=species | |rank=species | ||
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|publication year=1900 | |publication year=1900 | ||
|special status= | |special status= | ||
− | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V23/V23_19.xml |
|genus=Scirpus | |genus=Scirpus | ||
|species=Scirpus pedicellatus | |species=Scirpus pedicellatus |
Revision as of 21:05, 16 December 2019
Plants aggregated in dense tussocks; rhizomes branching, short, tough, fibrous. Culms: fertile ones upright or nearly so; nodes without axillary bulblets. Leaves ca. 8 per culm; sheaths of proximal leaves green or brownish; proximal sheaths and blades with septa few to many, consipuous or inconspicuous; blades 42–77 cm × 5–9 mm. Inflorescences terminal; rays ascending, scabrous throughout or main branches smooth proximally, rays rarely with axillary bulblets; bases of involucral bracts green, brown, or blackish, not glutinous. Spikelets in open cymes, central spikelet of each cyme sessile, others usually pedicellate, spikelets ovoid, 3–9 × 2–3 mm; scales usually pale brown, black pigment absent (or sometimes a little beside distal midrib), oblong-elliptic, 1.4–1.8 mm, rounded or weakly mucronate, mucro (if present) to 0.1 mm. Flowers: perianth bristles persistent, 6, slender, contorted, much longer than achene, smooth, projecting beyond scales, mature inflorescence appearing woolly; styles 3-fid. Achenes whitish, elliptic or obovate in outline, plumply trigonous or plano-convex, 0.7–0.9 0.4–0.5 mm. 2n = 68.
Phenology: Fruiting summer (mid or late Jul).
Habitat: Usually in lowland marshes in stream valleys, edges of bogs, boggy meadows, and wet sandy shorelines
Elevation: 0–500 m
Distribution
![V23 19-distribution-map.jpg](/w/images/5/54/V23_19-distribution-map.jpg)
N.B., N.S., Ont., Que., Conn., Ill., Ind., Iowa, Maine, Mass., Mich., Minn., Mo., N.H., N.J., N.Y., Ohio, Pa., R.I., Vt., Wis.
Discussion
Scirpus pedicellatus often hybridizes with S. cyperinus and forms hybrid swarms.
Selected References
None.