Rhynchospora rubra (Lour.) Makino
Indigenous

Morphological description

Annuals or short-lived perennials. Rhizome short. Culms tufted, 30-65 cm tall, 0.8-2 mm thick, terete, smooth. Leaves shorter than culm; sheath brownish straw-colored, 1-7 cm; leaf blade narrowly linear, 1.5-3.5 mm wide, papery, slightly scabrous, apex acuminate. Involucral bracts 4-10, stiffly spreading, leaflike, 1-5(-8.5) cm, longer than inflorescence, unequal, densely ciliate at dilated base, sheathless. Inflorescence a single terminal head, brown to orangish brown, globose, 1-1.8 cm in diam., with many spikelets. Spikelets narrowly ovoid, 6-8 mm, shiny, 2-4-flowered. Glumes 7 or 8, brown, ovate-lanceolate to elliptic-ovate, thinly papery, keeled, vein 1, apex obtuse to acute; basal glumes each with a female flower; apical 1 or 2 glumes each with a male flower. Perianth bristles 4-6, unequal, 1/3-1/2 as long as nutlet, antrorsely scabrous. Stamens 2 or 3; filaments shorter to longer than subtending glume; anthers linear; connective evident. Style filiform; stigmas 2 or sometimes undivided, very short. Nutlet brown when mature, obovoid, 1.5-1.8 mm, biconvex, edges subacute with apical half hispid-serrulate, sides sparsely hispid-scabrous mainly on apical half, obscurely spotted with minute isodiametric epidermal cells; persistent style base conic, 1/5-1/4 as long as nutlet, base abruptly widened. From: Et al. 2010. 22. Cyperaceae. In: Z-y Wu & PH Raven (eds). Fl. China 23: 164-285. Science Press; Missouri Botanical Garden Press, Beijing; St. Louis. [http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=10246]

Culms 25-100 cm high, 0.5-2.5 mm in diameter. Leaves basal, 2-3(-5) mm wide. Involucral bracts 2-8, the lowermost to 7.5 cm long. Inflorescence globose, dense, 1.0-1.5 cm across; spikelets 2-4-flowered, 2.2-10.0 mm long, compressed; lower flower female, upper one(s) male; glumes distichous, 6-8, red-brown, to 6 x 2 mm, keeled, acute or mucronulate, glabrous; bristles in female flower 3-6, thin, whitish, often ciliate or shortly plumose at base, usually shorter than nut, in the lowest male flower 0-3, absent from other flowers. Stamens (2-)3; anthers 1.8-3.0 mm long. Style shortly 1-fid; style base shortly pyramidal, broader than high, suddenly dilated at base, ±0.5 mm wide. Nutlet dark red-brown, broadly obovoid, 1.2-1.8 x 1.0-1.5 mm, laterally compressed, minutely reticulate, hispid at apex. From: Beentje, HJ; Hoenselaar, K. 2010. Cyperaceae. Fl. Trop. E. Africa: 1-466. [CC BY]

Diagnostic description

This species is easily recognized by its slender habit and the capitate inflorescence. From: Beentje, HJ; Hoenselaar, K. 2010. Cyperaceae. Fl. Trop. E. Africa: 1-466. [CC BY]

Habitat

Road margins, grassy slopes, wet places. From: Et al. 2010. 22. Cyperaceae. In: Z-y Wu & PH Raven (eds). Fl. China 23: 164-285. Science Press; Missouri Botanical Garden Press, Beijing; St. Louis. [http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=10246]

In brackish or freshwater swamps or seasonally swampy grasslands; sea-level up to 50 m. From: Beentje, HJ; Hoenselaar, K. 2010. Cyperaceae. Fl. Trop. E. Africa: 1-466. [CC BY]

Distribution

Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hubei, Hunan, Jiangsu, Jiangxi, Taiwan, S Yunnan, Zhejiang [India, Indonesia, Japan, Korea, Laos, Malaysia, Nepal, Papua New Guinea, Philippines, Sri Lanka, Thailand, Vietnam; Africa, Australia, Indian Ocean islands, Madagascar, Pacific islands. Plants from China would be Rhynchospora rubra subsp. rubra; other subspecies occur in Africa and Madagascar. From: Et al. 2010. 22. Cyperaceae. In: Z-y Wu & PH Raven (eds). Fl. China 23: 164-285. Science Press; Missouri Botanical Garden Press, Beijing; St. Louis. [http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=10246]

T 6; Z; widespread in West Africa, Congo Brazzaville, Mozambique, South Africa. From: Beentje, HJ; Hoenselaar, K. 2010. Cyperaceae. Fl. Trop. E. Africa: 1-466. [CC BY]

Flowering time

May to November

Altitude

50 to 1400 m

Occurrence records map

This map contains point-based occurrences at different locations

iNaturalist: BODATSA: Data partners records:

Residence status

Occurrence in the Flora of Southern Africa (FSA) countries and South African provinces. Residence status indicates if a taxon is indigenous, endemic, naturalised or invasive in a specific region. This data is based on specimen records and literature

FSA

SA

BOT

NAM

ESW

LES

WC

EC

NC

FS

GA

KZN

LP

MP

NW

Absent

Indigenous

Endemic

Naturalised

Invasive

×

Names and Sources

Accepted name
Rhynchospora rubra (Lour.) Makino
Synonym(s)

Classification

KINGDOM Plantae

SUBKINGDOM Phanerogamae

ORDER Poales

SUBFAMILY Cyperoideae

SPECIES rubra

This species contains accepted infraspecific taxa:

19 results for Rhynchospora rubra (Lour.) Makino

Specimen records

Barcode: PRE0683327-0 Collector(s) & number: Smith, PA, 3798 | 1982-3-14

Botswana, NORTHERN DIST.; NXABEGA ISLAND; OFF W. EDGE OF ISLAND.

Data Resource: BODATSA View record

Barcode: NH0085275-0 Collector(s) & number: Van Wyk, GF, 721 | 1986-3-10

South Africa, KwaZulu-Natal, Sodwana State Forest, Bukwini area.

General notes: Sedge growing in hygrophilous grassland. 0,25m high.

Data Resource: BODATSA View record

Barcode: NH0132530-2 Collector(s) & number: Ward, CJ, 12570 | 1994-3-26

South Africa, KwaZulu-Natal, Maputaland, Baya (south). Immediately north of old Baya Quarry/Borrow Pits. (27§24' S; 32§40' E)

General notes: Vegetation type: short herb wetland. Substrate: soil (damp). Soil type: Peaty sand. Moisture regime: seasonal marsh. Exposure: sun. Slope: level. Plant features: Loosely tufted. Other: In wide shallow depression. Notes: Common. (Duplicate ex Ward Herbarium, University of Durban-Westville)

Data Resource: BODATSA View record

Barcode: NH0132530-1 Collector(s) & number: Ward, CJ, 12570 | 1994-3-26

South Africa, KwaZulu-Natal, Maputaland, Baya (south). Immediately north of old Baya Quarry/Borrow Pits. (27§24' S; 32§40' E)

General notes: Vegetation type: short herb wetland. Substrate: soil (damp). Soil type: Peaty sand. Moisture regime: seasonal marsh. Exposure: sun. Slope: level. Plant features: Loosely tufted. Other: In wide shallow depression. Notes: Common. (Duplicate ex Ward Herbarium, University of Durban-Westville)

Data Resource: BODATSA View record

Barcode: PRE0097374-0 Collector(s) & number: Moll, EJ, 4771 | 1969-11-28

South Africa, KwaZulu-Natal, MANZINGWENYA; JUST E. OF VAZI SWAMP.

General notes: Small vlei.

Data Resource: BODATSA View record

Barcode: NH0116223-0 Collector(s) & number: Todd, CB, 149 | 1993-5-5

South Africa, KwaZulu-Natal, Ngoye Forest Reserve.

General notes: Rock slabs, seepage, sun. With other grasses.

Data Resource: BODATSA View record

Barcode: PRE0735057-0 Collector(s) & number: Robinson, EA, 5526 | 1963-6-10

South Africa, KwaZulu-Natal, ZULULAND; RICHARDS BAY.

General notes: Damp grassland.

Data Resource: BODATSA View record

Barcode: NH0114817-0 Collector(s) & number: Ngwenya, AM, 787 | 1992-1-7

South Africa, KwaZulu-Natal, KwaMbonambi, Langepan area.

Data Resource: BODATSA View record

Barcode: PRE0679034-0 Collector(s) & number: Ward, CJ, 9165 | 1978-3-22

South Africa, KwaZulu-Natal, ST. LUCIA; EASTERN SHORES.

Data Resource: BODATSA View record

Barcode: PRE0513287-0 Collector(s) & number: Ward, CJ, 8873 | 1976-5-31

South Africa, KwaZulu-Natal, ST. LUCIA ESTUARY.

Data Resource: BODATSA View record

Barcode: NH0063760-0 Collector(s) & number: Ward, CJ, 9078 | 1976-12-5

South Africa, KwaZulu-Natal, Kosi System. Airstrip adjacent Mtando Channal.

General notes: Amongst short hygrophilous herbs in low lying seasonally moist situation, organically rich sand, locally abundant. Altitude - < 2m.

Data Resource: BODATSA View record

Barcode: PRE0513292-0 Collector(s) & number: Ward, CJ, 9078 | 1976-12-5

South Africa, KwaZulu-Natal, Kosi System: Airstrip area adjacent Mtando Channel.

Data Resource: BODATSA View record

Barcode: PRE0818962-0 Collector(s) & number: Ngwenya, AM, 787 | 1992-1-7

South Africa, KwaZulu-Natal, Mtubatuba Dist.; KwaMbonambi; Langepan area.

General notes: Gentle slope. Frequent.

Data Resource: BODATSA View record

Barcode: PRE0560502-0 Collector(s) & number: Ward, CJ, 12570 | 1994-3-26

South Africa, KwaZulu-Natal, Maputaland: Baya (South); Immediately N. of old Baya Quarry/ Borrow Pits.

Data Resource: BODATSA View record

Barcode: PRE0818966-0 Collector(s) & number: Ngwenya, AM, 787 | 1992-1-7

South Africa, KwaZulu-Natal, Mtubatuba Dist.; KwaMbonambi; Langepan area.

General notes: Gentle slope. Frequent.

Data Resource: BODATSA View record

Barcode: NH0130008-0 Collector(s) & number: Ward, CJ, 12570 | 1994-3-26

South Africa, KwaZulu-Natal, Maputaland. Baya (South). Immediately North of old Baya Quarry/Borrow Pits.

General notes: Vegetation Type: Short herb wetland. Substrate: Soil (damp). Soil: Peaty sand. Exposure: Sun. Moisture: Seasonal marsh. Slope: Level. In wide shallow depression. Loosely tufted. Common.

Data Resource: BODATSA View record

Barcode: PRE0789700-0 Collector(s) & number: Todd, CB, 149 | 1993-5-5

South Africa, KwaZulu-Natal, Ngoye; Ngoye Forest Reserve.

General notes: Rock slabs, seepage, in sun. With other grasses.

Data Resource: BODATSA View record

Barcode: NH0080645-0 Collector(s) & number: Van Wyk, GF, 390 | 1984-6-6

South Africa, KwaZulu-Natal, Nyalazi State Forest.

General notes: Hygrophilous grassland.

Data Resource: BODATSA View record

Barcode: NH0066100-0 Collector(s) & number: Moll, EJ, 4771 | 1969-11-28

South Africa, KwaZulu-Natal, Small vlei just East of Vazi Swamp. Manzengwenya.

General notes: Vlei sedge and grassland. Rare tufted perennial. Altitude: c.100ft.

Data Resource: BODATSA View record

Plant occurence records per dataset

Plant occurence records per year

Occurrence records map

This map contains point-based occurrences at different locations

iNaturalist: BODATSA: Data partners records:

2010

FLORA

Cyperaceae Beentje, HJ; Hoenselaar, K

Flora of Tropical East Africa: 1-466

2010

FLORA CHAPTER

22. Cyperaceae Et al.

In: Z-y Wu & PH Raven (eds). Flora of China 23: 164-285

Science Press; Missouri Botanical Garden Press, Beijing; St. Louis

No results found for Rhynchospora rubra (Lour.) Makino

No assessment available

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