Cymophyllus

Mackenzie in N. L. Britton and A. Brown

in N. L. Britton and A. Brown, Ill. Fl. N. U.S. ed. 2, 1: 441. 1913.

Etymology: Greek kyma, wave, and phyll, leaf, in reference to the undulate-margined leaves
Treatment appears in FNA Volume 23. Treatment on page 573. Mentioned on page 3, 5, 255, 257.

Herbs, perennial, cespitose, evergreen. Culms compressed or terete. Leaves basal, bladeless; proximal sheaths 4–6, whitish to straw colored, disintegrating at maturity, distal 1 (–2, rarely), blade flat, formed from open, elongated sheath, without ligule or evident midvein, usually 2–5 cm wide. Inflorescences terminal, single spike; bracts spirally arranged, each subtending flower, scalelike. Spikelets 1-flowered; scales 0–1. Flowers unisexual; staminate flowers without scales; pistillate flowers with 1 scale enclosing flower (perigynium), open only at apex; perianth absent; stamens 3; styles deciduous, linear, 3-fid. Achenes sharply trigonous.

Distribution

e North America

Discussion

Species 1.

Selected References

None.

... more about "Cymophyllus"
trigonous +
A. A. Reznicek +
Mackenzie in N. L. Britton and A. Brown +
shortened +
2cm;5cm +
glumaceous +  and foliaceous +
ascending +  and appressed +
scale-like +
parallel +  and divergent +
terete +, rolled +  and plicate +
terete +  and compressed +
e North America +
Greek kyma, wave, and phyll, leaf, in reference to the undulate-margined leaves +
open +, pistillate +  and staminate +
hypogynous +  and subtending +
biconvex +  and trigonous +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
with (1-)3-6(-30) bristles and/or scales +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
in N. L. Britton and A. Brown, Ill. Fl. N. U.S. ed. +
adventitious +
basal +  and proximal +
2-keeled +
elongated +
cylindric +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
deciduous +
Cymophyllus +
Cyperaceae +
not +, stoloniferous +  and rhizomatous +
evergreen +  and perennial +
herb +  and cespitose +