PLANTAE / PHANEROGAMAE / ANTHOPHYTA / POALES / CYPERACEAE / CYPEROIDEAE / SCHOENEAE / SCHOENUS / RIPARIUS
Caespitose, phyllopodic perennial graminoid, tall and robust. Culms terete, robust, relatively tall for this clade, (390-)630-886(-1030) x (0.8-)1.3-1.9(-2.3) mm. Leaves basal, less than half the culm height or more, 1-2, (62-)230-540(-715) x 0.6-0.9(-1.3) mm, straight, proximally channelled, margin serrate above sheath. Sheaths dark reddish-black at base but paler above, firm, longitudinally striate. Ligule 2-lobes not evident, firm, relatively short, 0.5-1.0(-1.3) mm long. Inflorescence a pseudolateral panicle, long, dense and relatively wide, with many spikes, (49-)60-89(-114) x (6-)12-15(-19) mm, proximal rachis length (20-)28-40(-53) mm. Proximal primary inflorescence bracts firm, apex acute to acuminate, usually channelled, narrow at base, (80-)96-167(-204) mm long, exceeding length of inflorescence at least slightly. Spikes often many and aggregated into dense clusters along rachis, 5-13, (9.0-)12.0-18.0(-24.0) mm long, overlapping. Spikelets lanceolate, aristate, (4.8-)5.4-5.9(-6.2) x 1.0-1.4(-1.6) mm, pedicellate, 2-4 spikelets per spike, dark reddish-brown in colour. Proximal spikelet prophyll 1 per spikelet, well-developed, with notable, raised vein extending to mucro, 0.8-1.0(-1.6) mm long, prophyll mucro sometimes long giving inflorescence a ‘bearded' appearance, (1.8-)2.9-4.4(-6.4) mm long. Rachilla (0.4-)1.0-2.1(-3.5) mm long. Glumes 5-8 per spikelet, proximal glume (0.8-)1.3-1.8(-2.2) mm long, subproximal glume (1.0-)1.4-1.7(-2.5) mm long, narrow hyaline margins, upper glumes longer than basal ones, apex acute to obtuse. Glume mucros shortly cuspidate, proximal mucro (0.3-)0.9-1.5(-2.2) mm long, subproximal mucro (0.1-)0.1-0.7(-0.9) mm long. Stamens 1-3 per floret (usually 3), anthers 2.5-3.0 mm long. Stigmas 3-branched, vestigial stigmas of second bisexual floret absent (i.e. yet to be observed). Perianth bristles absent (i.e. yet to be observed). Nutlet broad elliptic, trigonous, yellowish in colour when young but maturing to reddish-brown in colour, 2.3-3.2(-3.8) x 0.71.3 mm. Nutlet beak 0.8-1.5(-2.5) mm long, hispid. From: Elliott, TL; Muasya, AM. 2020. A taxonomic revision of Schoenus cuspidatus and allies (Cyperaceae, tribe Schoeneae)—Part 2. S. African J. Bot. 130: 327-347. [https://doi.org/10.1016/j.sajb.2019.12.015] [Copyright held by the South African Association of Botanists (2020); http://www.sciencedirect.com/science/journal/02546299] [CC BY]
Densely tufted perennial to 100 cm. Spikelets reddish. From: Archer, C; Muasya, M. 2012. Cyperaceae. In: J Manning & P Goldblatt (eds), Plants of the Greater Cape Floristic Region 1: The Core Cape flora. Strelitzia 29: 84-96. South African National Biodiversity Institute, Pretoria. [CC BY] As: Tetraria paludosa Levyns
Schoenus riparius is a robust species, with relatively long and wide panicles. It is most like S. loreus, but it has channelled leaves that become terete distally compared to the non-channelled and flat leaves of S. loreus. Schoenus australis is also a relatively large and robust species, but it occurs on sites with coarse-textured soils, whereas S. riparius occurs on damp sites on the Cape Peninsula. The inflorescences of S. australis are also shorter and thinner compared to those of S. riparius. Schoenus crassus is a third species that could be confused with S. riparius; however, S. crassus usually has firmer and stiffer basal leaves compared to those of S. riparius. In addition, S. crassus has lighter reddish-brown coloured culm bases, inflorescences and spikelets than S. riparius. Levyns described the spikelets of S. riparius as cuspidate; however, the spikelets examined by T.L. Elliott were more aristate in shape. From: Elliott, TL; Muasya, AM. 2020. A taxonomic revision of Schoenus cuspidatus and allies (Cyperaceae, tribe Schoeneae)—Part 2. S. African J. Bot. 130: 327-347. [https://doi.org/10.1016/j.sajb.2019.12.015] [Copyright held by the South African Association of Botanists (2020); http://www.sciencedirect.com/science/journal/02546299] [CC BY]
Collections of this species have been made from damp sites. From: Elliott, TL; Muasya, AM. 2020. A taxonomic revision of Schoenus cuspidatus and allies (Cyperaceae, tribe Schoeneae)—Part 2. S. African J. Bot. 130: 327-347. [https://doi.org/10.1016/j.sajb.2019.12.015] [Copyright held by the South African Association of Botanists (2020); http://www.sciencedirect.com/science/journal/02546299] [CC BY]
Marshy lower slopes. From: Archer, C; Muasya, M. 2012. Cyperaceae. In: J Manning & P Goldblatt (eds), Plants of the Greater Cape Floristic Region 1: The Core Cape flora. Strelitzia 29: 84-96. South African National Biodiversity Institute, Pretoria. [CC BY] As: Tetraria paludosa Levyns
Schoenus riparius has been reported from two locations (Camps Bay and Hout Bay) on the Cape Peninsula of South Africa. From: Elliott, TL; Muasya, AM. 2020. A taxonomic revision of Schoenus cuspidatus and allies (Cyperaceae, tribe Schoeneae)—Part 2. S. African J. Bot. 130: 327-347. [https://doi.org/10.1016/j.sajb.2019.12.015] [Copyright held by the South African Association of Botanists (2020); http://www.sciencedirect.com/science/journal/02546299] [CC BY]
Cape Peninsula. From: Archer, C; Muasya, M. 2012. Cyperaceae. In: J Manning & P Goldblatt (eds), Plants of the Greater Cape Floristic Region 1: The Core Cape flora. Strelitzia 29: 84-96. South African National Biodiversity Institute, Pretoria. [CC BY] As: Tetraria paludosa Levyns
October
150 to 200 m
This map contains point-based occurrences at different locations
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
Published in: S. African J. Bot. 112: 359 (2017)
Nomenclature note: nom.nov. pro Tetraria paludosa Levyns (1947)
Type: South Africa, Western Cape Province, Camps Bay, 28 Oct 1945, Levyns 7915 (BOL139430, holo.)
Tetraria paludosa Levyns
Published in: J. S. African Bot. 13: 85 (1947)
Tetraria cuspidata (Rottb.) C.B.Clarke f. robustior Kuk.
Published in: Repert. Spec. Nov. Regni. Veg. 29: 187 (1931)
Type: South Africa, Western Cape Province, Hout Bay, 10 Jan 1921, Pillans 4864 (BOL5071, lecto.; K000244907, isolecto.). Lectotype designated by Elliott & Muasya, South African Journal of Botany 130: 334 (2020).
Classification
KINGDOM Plantae
SUBKINGDOM Phanerogamae
PHYLUM Anthophyta
ORDER Poales
FAMILY Cyperaceae
SUBFAMILY Cyperoideae
TRIBE Schoeneae
GENUS Schoenus
SPECIES riparius
0 results for Schoenus riparius T.L.Elliott & Muasya
Year
Province
This map contains point-based occurrences at different locations
2020
PERIODICAL/JOURNAL
A taxonomic revision of Schoenus cuspidatus and allies (Cyperaceae, tribe Schoeneae)—Part 2 Elliott, TL; Muasya, AMSouth African Journal of Botany 130: 327-347
2017
PERIODICAL/JOURNAL
Taxonomic realignment in the southern African Tetraria (Cyperaceae, tribe Schoeneae; Schoenus clade) Elliott, TL; Muasya, AMSouth African Journal of Botany 112: 354-360
2012
SERIES CHAPTER
Cyperaceae Archer, C; Muasya, MIn: J Manning & P Goldblatt (eds), Plants of the Greater Cape Floristic Region 1: The Core Cape flora. Strelitzia 29: 84-96
South African National Biodiversity Institute, Pretoria
1947
PERIODICAL/JOURNAL
Tetraria and related genera, with special reference to the flora of the Cape Peninsula Levyns, MRBJournal of South African Botany 13: 73-93
No results found for Schoenus riparius T.L.Elliott & Muasya
| Part(s) of plant used | Use(s) | Reference |
|---|
Coming soon...
