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Family Gramineae / Poaceae
Eragrostis japonica (Thunb.) Trin.
Sui mi zhi feng cao

Scientific names (Partial) Common names
Airopsis jubata Griseb. Grama (Tag.)
Diandrochloa diarrhena (Schult.) A.N.Henry Pond lovegrass (Engl.)
Diandrochloa diplachnoides (Steud.) A.N.Henry Japanese lovegrass (Engl.)
Diandrochloa glomerata (Walter) Burkart Teel lovegrass (Engl.)
Diandrochloa japonica (Thunb.) A.N.Henry  
Diandrochloa namaquensis (Nees) De Winter  
Eragrostis aturensis (Kunth) Trin. ex Steud.  
Eragrostis aurea Steud.  
Eragrostis conferta (Elliot) Trin.  
Eragrostis depauperata Andersson  
Eragrostis diarrhena (Schult. & Schult.) Steud.  
Eragrostis elegans Nees  
Eragrostis japonica (Thunb.) Trin.  
Eragrostis volgensis Roshev.  
Glyceria pilosa Steud.  
Megastachya aturensis (Kunth) Roem. & Schult.  
Panicum leptanthum Steud.  
Poa aturensis Kunth  
Poa dirrhena Schult. & Schult.f.  
Poa glomerata Walter  
Poa japonica Thunb.  
Poa stricta Roth  
Roshevitsia diarrhena (Schult. & Schult.) Tzvelev  
Roshevitsia diplachnoides (Steud.) Tzvelev  
Roshevitsia glomreata (Walter) Tzvelev  
Roshevitsia japonica (Thunb) Tzvelev  
Sporobolus confertiflorus A.Rich.  
Sporobolus verticillatus Nees  
Vilfa confertiflora (A.Rich.) Steud.  
Eragrostis japonica (Thunb.) Trin. is an accepted name The Plant List

Other vernacular names
CHINESE: Xu xu cao, Luan cao, Sui mi zhi feng cao.
FRENCH: Paturin de férat.
JAPANESE: Kogome kaze kusa.
MALAYSIAN: Okwat, Papalaan.
PAKISTAN: Panghas.
THAI: Lokhwot, Pee-pae.
VIETNAMESE: Tinhthao nhat, Nhót tay, So'n tra nhatban, Ti ba diep.

Grama is an erect, loosely tufted grass, 0.8 to 1.5 meters high. Leaves are 12 to 20 centimeters long, 3 to 5 millimeters wide. Panicles are elongated, erect, 20 to 40 centimeters long; branches are slender, usually fascicled, often up to 12 centimeters long. Spikelets are pedicelled, very numerous, pale, 2 to 4 millimeters long; the flowering glumes, 6 to 10, about 1 millimeter long.

- In open, wet grasslands, along streams, etc., at low and medium altitudes from northern Luzon to Palawan and Mindanao.
- Also occurs from tropical Asia and Africa to Japan and Malaya.

- Study of methanol extract of aerial parts yielded isoorientin, isovitexin, and caffeic acid. Total phenolic content (TPC) and total antioxidant activity (TAC) were 10.63 ± 0.31 mg/g and 2.83 ± 0.06 mg/g, respectively. (see study below) (7)

- Used as fodder.
- Studies have suggested antioxidant, neuroprotective, and mild antimicrobial activities.

Parts used
Leaves, whole plant.


- Infusion of fresh leaves administered externally as a poultice for headaches.
- In Korea, whole plant use on wounds and as analgesic.
- Fodder: Used to induce lactogene in cows.
(•) In Pakistan, whole plant used as fodder by cattle, buffalo, sheep, and goats. (6)

• Antimicrobial / Dental Pathogens: In a study of Korean medicinal plants for antimicrobial and anti-biofilm activities against dental pathogens, E. japonica exhibited growth inhibition of 29 ± 0.06 and 7 ± 1.1 % against Streptococcus mutans and Candida albicans, respectively. (5)
• Neuroprotective / Antioxidant / Aerial Parts:
Study evaluated the antioxidant and neuroprotective activities of aerial parts of seven Eragrostis species. While all showed antioxidant and neuroprotective activities, E. japonica was the most active of the species, with the highest TPC and TAC, and the second highest neuroprotective value (23.0 µg/mL.) (see constituents above) (7)


Updated October 2018 / April 2016

IMAGE SOURCE: Digitally modified / Public Domain / Eragrostis japonica / Jose Hernandez - USDA-NRCS PLANTS Database - Not copyrighted image / EOL-Encyclopedia of Life

Additional Sources and Suggested Readings
Eragrostis japonica (Thunb.) Trin. / Chinese names / Catalogue of Life, China
Sorting Eragrostis names
/ Authorised by Prof. Snow Barlow / Maintained by: Michel H. Porcher / MULTILINGUAL MULTISCRIPT PLANT NAME DATABASE / Copyright © 1997 - 2000 The University of Melbourne.
A Textbook of Medicinal Plants from Nigeria / Edited by Tolu Odugbemi / Google Books
Eragrostis japonica / Synonyms / The Plant List
Antimicrobial and Anti-Biofilm Activities of the Methanol Extracts of Medicinal Plants against Dental Pathogens Streptococcus mutans and Candida albicans / Hyoung-An Choi, Dae-Eun Cheong, Ho-Dong Lim, Won-Ho Kim, Mi-Hyoun Ham, Myung-Hwan Oh, Yuanzheng Wu, Hyun-Jae Shin, and Geun-Joong Kim / J. Microbiol. Biotechnol., 2017; 27(7): pp 1242–1248 / https://doi.org/10.4014/jmb.1701.01026
Ethnobotanical studies of fodder grass resources for ruminant animals, based on the traditional knowledge of indigenous communities in Central Punjab Pakistan / ,  and  / Journal of Ethnobiology and Ethnomedicine, 2017; 13:56 / https://doi.org/10.1186/s13002-017-0184-5
Antioxidant and Neuroprotective Activity of Aerial Parts of Seven Eragrostis Species and Bioactive Compounds from E. japonica / Chae Sun Na, Min Ju Lee, Seong Su Hong, Yu-Hyeok Choi, Jae-Eun Lee, So-Young Park, Yong Ho Lee and Sun Hee Hong / Rec. Nat. Prod., 2018; 12(1): pp 101-106 / DOI:  10.25135/rnp.

It is not uncommon for links on studies/sources to change. Copying and pasting the information on the search window or using the DOI (if available) will often redirect to the new link page.

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