Jepson eFlora: Taxon page
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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.
Species In Genus: +- 20 species: temperate, circumboreal, Australia, southern Africa, South America. 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
eFlora Treatment Author: David J. Keil
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Previous taxon: Triglochin scilloides
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botanical illustration including Triglochin striata


Citation for this treatment: David J. Keil 2016. Triglochin striata, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on April 29, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on April 29, 2016.

Geographic subdivisions for Triglochin striata:
NCo, CCo, n SCo;
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.
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).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

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