Eriochloa procera(Retz.) C.E.Hubb.

Cup GrassSpring Grass

WFO wfo-0000869117 Accepted WFO 2026-06 8 photographs CC0 / CC BY / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Eriochloa procera, photographed by 葉子
fig. a 葉子, CC0 1.0 / 2022-03-05 / obs. 185030947
Eriochloa procera, photographed by Jacy Chen
fig. b Jacy Chen, CC BY 4.0 / obs. 177114126
Eriochloa procera, photographed by Brendan McIntyre
fig. c Brendan McIntyre, CC BY 4.0 / obs. 117572084
Eriochloa procera, photographed by 葉子
fig. d 葉子, CC0 1.0 / obs. 106550910
Eriochloa procera, photographed by 葉子
fig. e 葉子, CC0 1.0 / obs. 92575618
Eriochloa procera, photographed by Cheng-Tao Lin
fig. f Cheng-Tao Lin, CC BY 4.0 / obs. 21387455
Eriochloa procera, photographed by Cheng-Tao Lin
fig. g Cheng-Tao Lin, CC BY 4.0 / obs. 69796349
Eriochloa procera, photographed by chen ying-hsiao
fig. h chen ying-hsiao, CC BY-SA 4.0 / obs. 154061491

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 38 botanical countries

Regions where Eriochloa procera is native: Burundi, DR Congo, Ethiopia, Kenya, Madagascar, Mozambique, Tanzania, Uganda, China Southeast, Hainan, Taiwan, Andaman Is., Assam, Bangladesh, Borneo, India, Jawa, Laos, Lesser Sunda Is., Malaya, Maluku, Myanmar, New Guinea, Nicobar Is., Pakistan, Philippines, South China Sea, Sri Lanka, Sulawesi, Sumatera, Thailand, Vietnam, West Himalaya, New South Wales, Northern Territory, Queensland, South Australia, Western Australia BurundiDR CongoEthiopiaKenyaMadagascarMozambiqueTanzaniaUgandaChina SoutheastHainanTaiwanAssamBangladeshBorneoIndiaJawaLaosLesser Sunda Is.MalayaMalukuMyanmarNew GuineaPakistanPhilippinesSri LankaSulawesiSumateraThailandVietnamWest HimalayaNew South WalesNorthern TerritoryQueenslandSouth AustraliaWestern Australia Andaman Is.Nicobar Is.South China Sea
Native distribution of Eriochloa procera, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Andaman Is. AND ASIA-TROPICAL
Assam ASS
Bangladesh BAN
Borneo BOR
India IND
Jawa JAW
Laos LAO
Lesser Sunda Is. LSI
Malaya MLY
Maluku MOL
Myanmar MYA
New Guinea NWG
Nicobar Is. NCB
Pakistan PAK
Philippines PHI
South China Sea SCS
Sri Lanka SRL
Sulawesi SUL
Sumatera SUM
Thailand THA
Vietnam VIE
West Himalaya WHM
Burundi BUR AFRICA
DR Congo ZAI
Ethiopia ETH
Kenya KEN
Madagascar MDG
Mozambique MOZ
Tanzania TAN
Uganda UGA
New South Wales NSW AUSTRALASIA
Northern Territory NTA
Queensland QLD
South Australia SOA
Western Australia WAU
China Southeast CHS ASIA-TEMPERATE
Hainan CHH
Taiwan TAI

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Where it actually grows measured, from 277 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 7.8 °C 14.4 °C 21.4 °C
Warmest month, mean daily high 27.1 °C 30.0 °C 37.4 °C
Annual rainfall 756 mm 1,705 mm 2,783 mm
Rainfall in the driest quarter 18 mm 77 mm 285 mm

It is barely found anywhere that freezes. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 277 research-grade observations of Eriochloa procera that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.

Also published as 23 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Agrostis procera Retz.
  • Agrostis ramosa (Retz.) Poir.
  • Eriochloa annulata (Flüggé) Kunth
  • Eriochloa hackelii Honda
  • Eriochloa polystachya var. annulata (Flüggé) Maiden & Betche
  • Eriochloa procera var. involucrata (Hack.) Jansen
  • Eriochloa procera var. procera
  • Eriochloa ramosa (Retz.) Kuntze
  • Eriochloa ramosa var. barbata Peter
  • Eriochloa ramosa var. involucrata Hack.
  • Eriochloa sundaica Miq.
  • Helopus annulatus Nees
  • Helopus javanicus Steud.
  • Helopus laevis Trin.
  • Helopus pilosus (Retz.) Trin.
  • Milium orixense Roxb. ex Hook.f.
  • Milium ramosum Retz.
  • Milium zonatum Llanos
  • Panicum annulatum (Flüggé) A.Rich.
  • Paspalum annulatum Flüggé
  • Piptatherum annulatum (Nees) J.Presl
  • Thysanolaena procera (Retz.) Mez
  • Vilfa procera (Retz.) P.Beauv.

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.