Difference between revisions of "Rhynchospora torreyana"
Ann. Lyceum Nat. Hist. New York 3: 197. 1835.
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|place=3: 197. 1835 | |place=3: 197. 1835 | ||
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+ | |special_status={{Treatment/ID/Special_status | ||
+ | |code=F | ||
+ | |label=Illustrated | ||
+ | }}{{Treatment/ID/Special_status | ||
+ | |code=E | ||
+ | |label=Endemic | ||
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|basionyms= | |basionyms= | ||
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|name=Phaeocephalum torreyanum | |name=Phaeocephalum torreyanum | ||
|authority=(A. Gray) House | |authority=(A. Gray) House | ||
+ | |rank=species | ||
}} | }} | ||
|hierarchy=Cyperaceae;Rhynchospora;Rhynchospora torreyana | |hierarchy=Cyperaceae;Rhynchospora;Rhynchospora torreyana | ||
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name=Rhynchospora torreyana | name=Rhynchospora torreyana | ||
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|authority=A. Gray | |authority=A. Gray | ||
|rank=species | |rank=species | ||
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|publication title=Ann. Lyceum Nat. Hist. New York | |publication title=Ann. Lyceum Nat. Hist. New York | ||
|publication year=1835 | |publication year=1835 | ||
− | |special status= | + | |special status=Illustrated;Endemic |
− | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V23/V23_393.xml |
|genus=Rhynchospora | |genus=Rhynchospora | ||
|species=Rhynchospora torreyana | |species=Rhynchospora torreyana |
Latest revision as of 20:40, 5 November 2020
Plants perennial, cespitose, 50–100 cm; rhizomes absent. Culms ascending-excurved, leafy, ± terete, slender. Leaves ascending, overtopped by culm; blades narrowly linear, proximally flat, 2–3 mm wide, apex trigonous, tapering. Inflorescences: spikelet clusters (1–)2–3, widely spaced, open to dense, broadly to narrowly turbinate, branches ascending to slightly spreading, capillary; leafy bracts setaceous-tipped, overtopping all but distal clusters. Spikelets light red-brown, ovoid, 3.5–5 mm, apex acuminate; fertile scales ovate, 2.5–3.5 mm, apex acute, midrib excurrent as cusp or mucro. Flowers: perianth bristles 6, reaching at most 2/3 length of fruit body, antrorsely barbellate. Fruits 1–4(–5) per spikelet, 2 mm; body brown, strongly compressed, obovoid-ellipsoid, 1.4–1.6 × 1–1.2 mm, margins flowing to tubercle; surfaces finely transversely rugose, intervals with narrow vertical alveolae; tubercle flat, low-triangular, 0.2–0.3(–0.5) mm.
Phenology: Fruiting summer–fall.
Habitat: Sands and peats of low meadows, savannas, flatwoods, pond shores, ditch banks
Elevation: 0–200 m
Distribution
Ala., Conn., Del., Fla., Ga., Md., Mass., N.J., N.Y., N.C., R.I., S.C., Va.
Discussion
Selected References
None.