Kyllinga pumila

Michaux

Fl. Bor.-Amer. 1: 28. 1803.

Common names: Annual greenhead sedge
Illustrated
Synonyms: Cyperus densicaespitosus Mattfeld & Kükenthal Cyperus tenuifolius (Steudel) Dandy Kyllinga tenuifolia Steudel
Treatment appears in FNA Volume 23. Treatment on page 194. Mentioned on page 192, 193.

Herbs, annual, cespitose, not rhizomatous. Culms (5–) 15–30 (–55) cm, smooth. Leaves flat to V-shaped, 4–20 (–30) cm × 1.5–3 (–3.6) mm. Inflorescences: spikes 1–3, pale greenish, (3–) 5–8 (–11) × 5–7 mm; bracts (3–) 4 (–5), horizontal to ascending at 30°, flat, (1–) 3–10 (–22) cm × 1–2.5 (–3) mm. Spikelets 50–150, lanceolate to ovatelanceolate, (1.9–) 2.4–2.8 (–3.8) × 0.6–0.9 mm; floral scales pale brownish to transparent, midvein not winged, laterally 2–3 (–4) -veined, ovate, (1.8–) 2.2–3.1 (–3.4) × 1–1.7 mm; stamens 2; anthers elliptic, (0.2–) 0.3–0.4 mm; style 0.5–0.8 mm; stigmas 0.5–0.9 mm. Achenes light-brown, stipitate, oblong, 1–1.2 (–1.4) × 0.5–0.6 (–0.7) mm, base cuneate to rounded, stipe to 0.1 mm, apex subtruncate, apiculate, finely papillose.


Phenology: Fruiting summer.
Habitat: Damp grasslands, shorelines, ditches, lawns, gardens
Elevation: 0–200 m

Distribution

V23 340-distribution-map.jpg

Ala., Ark., Del., Fla., Ga., Ill., Ind., Kans., Ky., La., Md., Miss., Mo., N.J., N.Y., N.C., Ohio, Okla., Pa., S.C., Tenn., Tex., Va., W.Va., Mexico, West Indies, Central America, South America, Africa

Discussion

Selected References

None.

Lower Taxa

None.

"shortened" is not a number.

... more about "Kyllinga pumila"
0.12 cm1.2 mm <br />0.0012 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
light-brown +
0.1 cm1 mm <br />0.001 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
0.5mm;0.6mm +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
apiculate +  and subtruncate +
papillose +
Gordon C. Tucker +
Michaux +
persistent +
cuneate +  and rounded +
v--shaped +  and flat +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
10 cm100 mm <br />0.1 m <br /> (22 cm220 mm <br />0.22 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
3 cm30 mm <br />0.03 m <br /> (10 cm100 mm <br />0.1 m <br />) +
horizontal +  and ascending +
0.1 cm1 mm <br />0.001 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
parallel +  and divergent +
terete +, rolled +  and plicate +
Annual greenhead sedge +
trigonous +
15 cm150 mm <br />0.15 m <br /> (30 cm300 mm <br />0.3 m <br />) +
Ala. +, Ark. +, Del. +, Fla. +, Ga. +, Ill. +, Ind. +, Kans. +, Ky. +, La. +, Md. +, Miss. +, Mo. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, Pa. +, S.C. +, Tenn. +, Tex. +, Va. +, W.Va. +, Mexico +, West Indies +, Central America +, South America +  and Africa +
0–200 m +
pale brownish +  and transparent +
hypogynous +  and subtending +
biconvex +  and trigonous +
Damp grasslands, shorelines, ditches, lawns, gardens +
erect +  and spreading +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
20 cm200 mm <br />0.2 m <br /> (30 cm300 mm <br />0.3 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.36 cm3.6 mm <br />0.0036 m <br />) +
4 cm40 mm <br />0.04 m <br /> (?) +  and 20 cm200 mm <br />0.2 m <br /> (?) +
flat +  and v-shaped +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
2-3(-4)-veined +  and not winged +
0.31 cm3.1 mm <br />0.0031 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.31 cm3.1 mm <br />0.0031 m <br />) +
1mm;1.7mm +
with (1-)3-6(-30) bristles and/or scales +
Fruiting summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
Fl. Bor.-Amer. +
adventitious +
basal +  and proximal +
2-keeled +
cylindric +
Illustrated +
0.8 cm8 mm <br />0.008 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
pale greenish +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
cylindric;ovoid +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.38 cm3.8 mm <br />0.0038 m <br />) +
0.24 cm2.4 mm <br />0.0024 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
distinguished +
50 +  and 150 +
lanceolate;ovatelanceolate +
0.6mm;0.9mm +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
0 cm0 mm <br />0 m <br /> (?) +  and 0.01 cm0.1 mm <br />1.0e-4 m <br /> (?) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
Cyperus densicaespitosus +, Cyperus tenuifolius +  and Kyllinga tenuifolia +
Kyllinga pumila +
Kyllinga +
species +
herb +  and cespitose +