Rhynchospora fernaldii

Gale

Rhodora 46: 182, plate 825, figs. 3A, B. 1944.

IllustratedEndemic
Synonyms: Rhynchospora fascicularis var. fernaldii (Gale) Kükenthal
Treatment appears in FNA Volume 23. Treatment on page 235. Mentioned on page 206.
Please click on the illustration for a higher resolution version.
Illustrator:

Copyright:

Plants perennial, cespitose, 15–50 cm; rhizomes absent. Culms erect or ascending, slender, leafy proximal to middle, somewhat stiff. Leaves overtopped by culm; blades ascending, ± filiform, proximally flat or slightly concave, to 1 mm wide, apex narrowing, trigonous, abruptly blunt. Inflorescences: spikelet clusters 1–2, if 2 then close together, dense, broadly turbinate to hemispheric or even globose; primary leafy bract setaceous, exceeding clusters. Spikelets redbrown, ovoid, 2–2.5 (–4) mm, apex acute; fertile scales broadly ovate, 1.5–1.9 (–2) mm, apex acute to acuminate, midrib excurrent as awn to 0.5 mm. Flowers: bristles 6, some reaching to apex of fruit body. Fruits 2–3 per spikelet, 1–1.2 (–1.4) mm; body dull dark-brown with paler brown center, lenticular, broadly obovoid to broadly ellipsoid, 1 × 0.8 mm, margins narrow, flowing to tubercle; tubercle nearly equilaterally triangular, 0.2–0.3 mm.


Phenology: Fruiting summer–fall.
Habitat: Sands and peats of low clearings in flatwoods, savannas, and bog edges
Elevation: 0–100 m

Discussion

Selected References

None.

Lower Taxa

None.

"wider" is not a number.

... more about "Rhynchospora fernaldii"
narrowing +
Robert Kral +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
shortened +
2-lobed +  and lunate +
scabridulous +  and scabrid +
concave +, flat +  and filiform +
0mm;1mm +
dark-brown +
1 cm10 mm <br />0.01 m <br /> (?) +
warty +, papillate +, alveolate +  and pitted +
broadly obovoid +  and broadly ellipsoid +
0.8 cm8 mm <br />0.008 m <br /> (?) +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
parallel +  and divergent +
terete +, rolled +  and plicate +
paler brown +
ascending +  and erect +
proximal +  and middle +
trigonous +
slender +
Ala. +, Fla. +, Ga. +  and Miss. +
0–100 m +
distalmost +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
biconvex +  and trigonous +
Sands and peats of low clearings in flatwoods, savannas, and bog edges +
racemose +, corymbose +  and paniculate +
erect +, rarely +  and spreading +
3-ranked +  and polystichous +
cauline +  and basal +
keeled;terete;keeled;terete +
revolute +  and involute +
decurrent +
plumed +  and barbed +
deciduous +  and persistent +
shorter or longer +
of 2-12(-20) bristles +
Fruiting summer–fall. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
adventitious +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
basal +  and proximal +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
cylindric +
Illustrated +  and Endemic +
close +  and cluster +
ovoid;globose;broadly turbinate;hemispheric +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
2 (?) +  and 3 (?) +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
cleft +, 2-fid +  and undivided +
Rhynchospora fascicularis var. fernaldii +
Rhynchospora fernaldii +
Rhynchospora +
species +
sulcate +  and 2-edged +
triangular +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
plant +  and cespitose +