Jepson eFlora: Taxon page
Vascular Plants of California
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Scheuchzeria palustris

Higher Taxonomy
Family: ScheuchzeriaceaeView Description 
Habit: Perennial herb, rhizomed, aquatic, generally emergent, on floating mats, or terrestrial. Stem: erect, generally simple, slender. Leaf: basal, cauline, alternate, simple; sheath generally open; ligule prominent; blade erect, linear, subcylindric, tip with a large pore. Inflorescence: raceme, terminal, flower bracts leaf-like, pedicels elongating after flower. Flower: bisexual, radial; perianth parts 6, in 2 +- dissimilar whorls, free; stamens 6, in 2 whorls, fused to perianth, anthers opening outward by slits; pistils 3(6), +- united at base or not, free above, ovary superior, chamber 1, ovules 1--3, style stout [0], papillate or plumose. Fruit: follicles.
Genera In Family: 1 genus, 1 sp.: western and eastern North America, Eurasia.
eFlora Treatment Author: C. Barre Hellquist
Scientific Editor: Thomas J. Rosatti.
Genus: ScheuchzeriaView Description 

Etymology: (Johann Jakob Scheuchzer, Swiss botanist, 1672--1733, and his brother, Johannes Scheuchzer, 1684--1738)
Scheuchzeria palustris L.
Habit: Glabrous. Stem: 1--4 dm, zigzag. Leaf: striate; ligule 2--12 mm; basal 1--2(3) dm; cauline reduced upward, blade 1--3 mm wide. Inflorescence: peduncle in fruit < 2.5 dm; pedicels spreading, 5--25 mm; flowers 3--12. Flower: perianth parts 2--3 mm, 1-veined, green-white. Fruit: generally 1--4, 4--10 mm, dehiscing on curved, adaxial side, beak 0.5--1 mm. Seed: 1--3, 4--5 mm. Chromosomes: 2n=22.
Ecology: Floating mats, bogs, lake margins; Elevation: 1400--2000 m. Bioregional Distribution: s CaRH; Distribution Outside California: to Alaska, eastern North America; Eurasia. Flowering Time: Jul--Aug Note: Variation in fruit, stigmas does not support infraspecific taxa.
Synonyms: Scheuchzeria palustris subsp. americana (Fernald) Hultén; Scheuchzeria palustris var. americana Fernald
Jepson eFlora Author: C. Barre Hellquist
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)
Listed on CNPS Rare Plant Inventory

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Botanical illustration including Scheuchzeria palustris

botanical illustration including Scheuchzeria palustris


Citation for this treatment: C. Barre Hellquist 2012, Scheuchzeria palustris, in Jepson Flora Project (eds.) Jepson eFlora, /eflora/eflora_display.php?tid=43474, accessed on March 31, 2020.

Citation for the whole project: Jepson Flora Project (eds.) 2020, Jepson eFlora,, accessed on March 31, 2020.

Scheuchzeria palustris
click for enlargement
© 2009 George W. Hartwell
Scheuchzeria palustris
click for enlargement
© 2009 George W. Hartwell
Scheuchzeria palustris
click for enlargement
© 2016 Keir Morse
Scheuchzeria palustris
click for enlargement
© 2009 George W. Hartwell
Scheuchzeria palustris
click for enlargement
© 2008 George W. Hartwell
Scheuchzeria palustris
click for enlargement
© 2006 Steve Matson

More photos of Scheuchzeria palustris in CalPhotos

Geographic subdivisions for Scheuchzeria palustris:
s CaRH
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).


View elevation by latitude chart

Data provided by the participants of the  Consortium of California Herbaria.
View all CCH records
All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.

CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time (fruiting time in some monocot genera).