Rhynchospora torreyana

A. Gray

Ann. Lyceum Nat. Hist. New York 3: 197. 1835.

IllustratedEndemic
Synonyms: Phaeocephalum torreyanum (A. Gray) House
Treatment appears in FNA Volume 23. Treatment on page 224. Mentioned on page 204.
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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

V23 393-distribution-map.jpg

Ala., Conn., Del., Fla., Ga., Md., Mass., N.J., N.Y., N.C., R.I., S.C., Va.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Rhynchospora torreyana"
Robert Kral +
A. Gray +
Ala. +, Conn. +, Del. +, Fla. +, Ga. +, Md. +, Mass. +, N.J. +, N.Y. +, N.C. +, R.I. +, S.C. +  and Va. +
0–200 m +
Sands and peats of low meadows, savannas, flatwoods, pond shores, ditch banks +
Fruiting summer–fall. +
Ann. Lyceum Nat. Hist. New York +
Illustrated +  and Endemic +
Phaeocephalum torreyanum +
Rhynchospora torreyana +
Rhynchospora +
species +