Show Lower Taxa
Schoenoplectus sect. Actaeogeton
Adansonia, n.s. 16: 130. 1976.
Basionym: Scirpus sect. Actaegeton Reichenbach Fl. Germ. Excurs., 78. 1830
Treatment appears in FNA Volume 23.
Plants annual or rarely perennial, cespitose; rhizomes inconspicuous, very short, firm [perennials, rhizomes long]. Culms 0.5–3 mm diam. Leaves all basal. Inflorescences capitate or of 1 spikelet [sometimes branched]. Spikelets: scales each with 3–11 distinct parallel ribs in proximal part of spikelet, apex entire, mostly mucronate. Flowers: perianth present or absent, segments bristlelike, spinulose; amphicarpic flowers absent. Achenes plane or biconvex, sometimes trigonous, rugulose, without prominent, transverse, wavy ridges.
Distribution
Worldwide, mostly in eastern Asia, the Pacific Islands, and e North America
Discussion
Species ca. 23 (3 in the flora).
Selected References
None.
"shortened" is not a number."prolonged" is not a number.
... more about "Schoenoplectus sect. Actaeogeton"
exceeding +
rugulose +
trigonous;biconvex;plane +
2.5mm;3.5mm +
basifixed +
3 cm30 mm <br />0.03 m <br /> (?) +
entire +
mucronate +
deciduous +
developed +
absent +
rudimentary +
1;many +
2;3 +
glabrous +
spongy +
basal +
abundant +
amphicarpic +
absent +
single +
bisexual +
blunt +
paniculate +
pseudoumbel +
modified +
glabrous +
membranous +
spinulose +
fused +
scabrous +
spinulose +
straplike +
falling +
absent +
with (1-)3-6(-30) bristles and/or scales +
fringed +
thin +
2-3(-4)-carpellate +
fused +
pistillate +
subtending +
erect;spreading +
Adansonia, n.s. +
1976 +
inconspicuous +
firm +
parallel +
distinct +
3;11 +
transverse +
prominent +
wavy +
adventitious +
fibrous +
empty +
arranged +
deciduous +
3;6 +
fertile +
2-keeled +
bristlelike +
spinulose +
tubular +
single +
terete +
2mm;5mm +
distinct +
papillate +
undivided +
2-3-fid +
Schoenoplectus sect. Actaeogeton +
Schoenoplectus +
section +
free +
thin +
5;100 +