Jepson eFlora: Taxon page
Vascular Plants of California
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

Triglochin striata

Higher Taxonomy
Family: JuncaginaceaeView Description 
Habit: Annual, perennial herb, rhizomed or dense-tufted, terrestrial or aquatic. Leaf: generally +- basal, alternate, +- flat to narrow-cylindric; sheath open, generally liguled. Inflorescence: spike or generally +- scapose raceme; bracts 0. Flower: generally bisexual; perianth parts generally 6 in 2 whorls (0, 1) [3, 4], free, scale-like, +- green or tinged +- red-purple; stamens 0, 1, 3, or 6, filaments short, +- fused to perianth; pistil 1, carpels 1, 6 [3, 4], +- fused, separating in fruit [or not], each with 1 chamber and 1 ovule or 3 carpels fertile, 3 sterile, placentas basal, stigmas generally +- sessile. Fruit: achene or generally mericarps.
Genera In Family: 3 genera, 30 species: temperate, circumboreal, Australia, southern Africa, South America. Note: Lilaea included in Triglochin.
eFlora Treatment Author: David J. Keil
Scientific Editor: Thomas J. Rosatti.
Genus: TriglochinView DescriptionDichotomous Key

Common Name: ARROW-GRASS
Habit: Plant +- glabrous. Leaf: basal, +- tufted; sheath membranous; ligule tip entire to 2-lobed [0]. Flower: perianth parts generally adaxially concave; anthers +- sessile; stigma papillate or +- plumose. Fruit: achene or generally 3, 6 mericarps. Seed: 1, linear, +- flat or angled.
Etymology: (Greek: 3 points, from fruits of some) Toxicity: TOXIC when fresh, from cyanogenic compounds.
Triglochin striata Ruiz & Pav.
Habit: Perennial herb 1--2(4.5) dm, mat-forming; rhizomes spreading to ascending, slender. Leaf: 5--20(45) cm, 1(2) mm wide, +- elliptic in ×-section; ligule 1--2.5 mm, tip rounded to acuminate. Inflorescence: aerial raceme, 5--25(32) cm, < to > leaves; pedicels 0.4--2.1(3.5) mm in fruit, spreading to ascending. Flower: perianth parts (< 6)6, (< 0.6)0.6--1 mm; stamens (< 6)6, often unequal; fertile carpels 3. Fruit: mericarps 3, 1--1.5 mm, fully separating, abaxially strong-3-keeled. Chromosomes: 2n=18,24.
Ecology: Uncommon. Brackish to freshwater coastal marshes, springs; Elevation: < 30 m. Bioregional Distribution: NCo, CCo, n SCo; Distribution Outside California: to Washington, southeastern United States; Chile, Australasia, Africa, Madagascar, naturalized western Europe. Flowering Time: May--Sep
Jepson eFlora Author: David J. Keil
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

Previous taxon: Triglochin scilloides
Next taxon: Laxmanniaceae

Name Search

Botanical illustration including Triglochin striata

botanical illustration including Triglochin striata


Citation for this treatment: David J. Keil 2012, Triglochin striata, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on November 28, 2022.

Citation for the whole project: Jepson Flora Project (eds.) 2022, Jepson eFlora,, accessed on November 28, 2022.

Triglochin striata
click for enlargement
© 2013 Vernon Smith

More photos of Triglochin striata in CalPhotos

Geographic subdivisions for Triglochin striata:
NCo, CCo, n SCo
1. You can change the display of the base map layer control box in the upper right-hand corner.
2. County and Jepson Region polygons can be turned off and on using the check boxes.
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).


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).