Rhynchospora harveyi
Rhynchospora careyana
Harvey's beaksedge
broadfruit horned beaksedge
erect to excurved, leafy, obscurely trigonous, slender.
stiffly erect, leafy, triangular, multiribbed.
spreading to ascending, shorter than culm, crowded toward culm base;
blades linear, proximally flat, 1–3 mm wide, gradually involute, apically trigonous, subulate.
ascending, overtopped by inflorescence;
principal leaves flat proximally, 3–12 mm wide, apex attenuate, trigonous.
spikelet clusters 1–4, dense to open, mostly irregularly turbinate;
peduncles ascending, branches spreading to erect, ultimate branches with many spikelets; leafy bracts setaceoustipped, usually exceeding all clusters, or at least all but the distal.
terminal and axillary from distal culm nodes, mostly diffuse clusters of corymbs;
clusters mostly loose;
bracteal leaves usually exceeded by inflorescences.
light redbrown or brown, broadly ellipsoid to lanceoloid, 3–4 mm, apex acute to acuminate;
fertile scales ovate to obovate or suborbiculate, 2–3.5 mm apex acute to rounded or emarginate, midrib included or exserted as mucro.
red-brown or orangish tint, lanceoloid, 13–18 mm, apex acuminate;
fertile scales lance-ovate, 10–13 mm, apex acute to acuminate, midrib short-excurrent, minutely scabrous.
perianth bristles mostly 6, rarely reaching fruit midbody, antrorsely barbellate.
longer perianth bristles extending from near tubercle base to 3 mm beyond, antrorsely barbellate.
mostly 1 per spikelet, 2–2.5 mm, body dark brown, obovoid to subglobose, tumid or lenticular, 1.5–1.7 mm, transversely finely rugose to nearly level, intervals with very small, pitlike alveoli.
1–2 per spikelet, 15–24 mm;
body pyriform-obovoid, compressed, 4–5 × 2.8–3.5 mm, margins thick;
surfaces concave, finely transversely striate, minutely cancellate;
tubercle abruptly subulate, 2-grooved, 11–20 mm.
Rhynchospora harveyi
Rhynchospora careyana
Varieties 2 (2 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Rhynchospora careyana forms clones as extensive as those of R. tracyi and R. inundata and is often found over acres of pond shallows and wet savanna, often sharing the habitat with R. traceyi. A most interesting and distinctive field feature for R. careyana is the orange tint of its spikelets.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Fruit body broadly obovoid to suborbicular, medially with mostly isodiametric tiny alveoli or pits, or minutely raised reticulate in an almost honeycomb pattern of alveolae, or simply evenly finely cancellate; ultimate spikelet complexes with clusters on stiffish branchlets, usually dense and exceeded at least by subulate tips of subtending leafy bract and bractlets. | var. harveyi |
1. Fruit body obovoid, lenticular, medially with oblong or roundish pitlike alveoli, intervals between contiguous transverse rows forming shallow, broad, pale, smooth ridges; ultimate spikelet clusters more sparse, on more slender, lax, erect to excurved branches and exceeding subtending bracts and bractlets. | var. culixa |
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