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Marsh Arrow-grass
Triglochin palustris
About Marsh Arrow-grass (Triglochin palustris) 0 Nurseries Carry This Plant Triglochin palustris or marsh arrowgrass is a variety of arrowgrass found in damp grassland usually on calcareous soils, fens and meadows. It has a circumboreal distribution, occurring throughout northern parts of the Northern Hemisphere. It can be found locally in the British Isles especially the north. . It is a slender perennial herb 15 to 40cm tall. It has no stolons, and emits a pleasant aromatic smell when bruised. It is a slender perennial herb 15 to 40cm tall. It has no stolons, and emits a pleasant aromatic smell when bruised. The leaves are linear, 10 to 20 cm long, rounded on the lower side, deeply grooved on the other. It has many 3 petalled flowers arranged in a long spike, with purple edged perianth segments, 2mm long. It flowers from June until August. The fruits are club shaped, 10mm long and 2mm wide. Similar species. Triglochin maritimum (Sea arrowgrass) is similar but has the following differences: it has stolons, is stouter. The leaves are fleshy and not furrowed above. It is not very aromatic. The raceme are more dense and like Sea Plantain. The flowers are fleshier. The fruits are oval, 4 mm long, 2 mm wide.
Plant Description
Plant Type
Plant Type
Perennial herb

0.49 - 1.3 ft tall

Flower Color
Flower Color

Landscaping Information
Natural Setting
Annual Precipitation: 10.2" - 56.4", Summer Precipitation: 0.19" - 2.63", Coldest Month: 20.0" - 48.9", Hottest Month: 41.9" - 70.2", Humidity: 0.73" - 18.39", Elevation: 123" - 11286"

Alternative Names
Common Names: Marsh Arrowgrass

Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

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