|Jepson Flora Project: Jepson Interchange|
|TREATMENT FROM THE JEPSON MANUAL (1993)||
previous taxon |
Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
AND IS MAINTAINED FOR ARCHIVAL PURPOSES ONLY
Perennial from rhizomes, aquatic (generally emergent) or terrestrial (sometimes on floating mats)
Stem erect, generally simple, slender
Leaves basal and cauline, alternate, simple; sheath generally open; ligule prominent; blade erect, linear, subcylindric; tip with a large pore
Inflorescence: raceme, terminal, bracted
Flower bisexual, radial; perianth parts 6 in 2 whorls, free; stamens 6 in 2 whorls, free, anthers opening outward by slits; pistils 3(6), simple above, fused at base, ovary superior, chamber 1, ovules 13
Genera in family: 1 genus, 1 sp.
Etymology: (Johann Jakob Scheuchzer, Swiss botanist, 16721733)
Stem in flower 34 dm
Leaves: basal 12(3) dm; cauline shorter upward; ligule 210 mm; blade 13 mm wide
Inflorescence: flowers 312; peduncle in fruit < 2.5 dm
Flower: perianth parts ± 3 mm, 1-veined, greenish
Fruit: follicles 23, 510 mm, ± ascending
Seeds 13, 45 mm
Ecology: Floating mats, bogs, lake margins
Elevation: 14002000 m.
Bioregional distribution: s High Cascade Range
Distribution outside California: to Alaska, e N.America
Other subsp. in Eurasia.