Jepson eFlora: Taxon page
Key to families | Table of families and genera
Previous taxon Index to accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Next taxon
Stuckenia striata
NEVADA PONDWEED

Higher Taxonomy
Family: PotamogetonaceaeView DescriptionDichotomous Key

Common Name: PONDWEED FAMILY
Habit: Annual, perennial herb, aquatic, (generally fresh to alkaline), glabrous, from rhizomes, tubers, or winter buds. Stem: erect, simple to branched, cylindric to compressed, rooting at lower nodes; nodal glands present or not. Leaf: simple, cauline, alternate or in subopposite pairs; submersed thread-like to round, sessile or petioled; floating present or not, elliptic to ovate, petioled, leathery; sheath open, continuous with petiole or +- free from blade base, generally stipuled, stipules fused and ligule-like or not. Inflorescence: spike, cylindric to spheric, axillary or terminal, generally emergent, peduncled; bracts 0. Flower: inconspicuous, bisexual; perianth parts [0]4, clawed, +- green, limb generally adaxially concave; stamens [2]4, each fused to base of perianth part [or not], filament generally 0 [short, wide], anthers open to outside; pistils [1]4, ovary 1-chambered, ovule 1, attached to chamber base, style 0 or short. Fruit: drupe, generally obovate, sessile. Seed: 1.
Genera In Family: 3 genera, +- 95 species: worldwide. Note: Recently treated elsewhere to include Zannichelliaceae. Ruppia moved to Ruppiaceae.
eFlora Treatment Author: C. Barre Hellquist, Robert F. Thorne & Robert R. Haynes
Scientific Editor: Thomas J. Rosatti.
Genus: StuckeniaView DescriptionDichotomous Key

Common Name: PONDWEED
Habit: Perennial herb, rhizomed, tubered or not, winter buds 0. Stem: branched, cylindric. Leaf: submersed, sessile, channeled, entire, tip acute to abruptly pointed, notched, or rounded, veins 1--5; stipules fused to leaf blade >= 2/3 stipule length. Inflorescence: submersed; peduncle flexible. Fruit: beaked or not, keel 0. Chromosomes: x=13.
Species In Genus: +-7 species: worldwide.

Stuckenia striata (Ruiz & Pav.) Holub
NATIVE
Habit: Rhizomed, tubers 0. Stem: < 60 cm, branches many, subcylindric, +- white. Leaf: 2--10 cm, (0.4)1.5--5(8.5) mm wide, linear, veins 3--5, tip with abrupt, medium-long to long point (rounded); stipules < 3 cm, sheaths not inflated. Inflorescence: axillary (terminal), interrupted below, 13--45 mm, whorls 4--9; peduncle 1.2--5.2 cm. Fruit: 3--3.9 mm, beak conspicuous.
Ecology: Uncommon. Shallow, alkaline water, ponds, lakes; Elevation: < 1450 m. Bioregional Distribution: SN, GV, SnFrB, GB, DMoj; Distribution Outside California: to Oregon, Colorado, Texas, Mexico, Central America, South America. Flowering Time: Jul--Aug Note: May be locally abundant.
Synonyms: Coleogeton striatus (Ruiz & Pav.) Les & R.R. Haynes; Potamogeton latifolius (J.W. Robbins) Morong
eFlora Treatment Author: C. Barre Hellquist, Robert F. Thorne & Robert R. Haynes
Jepson Online Interchange

Previous taxon: Stuckenia pectinata
Next taxon: Ruppiaceae

Name Search
botanical illustration including Stuckenia striata

Contact/Feedback

Citation for this treatment: C. Barre Hellquist, Robert F. Thorne & Robert R. Haynes 2016. Stuckenia striata, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=80316, accessed on February 13, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 13, 2016.


Geographic subdivisions for Stuckenia striata:
SN, GV, SnFrB, GB, DMoj;
Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
READ ABOUT YELLOW FLAGS
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

CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.