CHR 624931 – Cyperus congestus Vahl
Data provider:
Allan Herbarium
Barcode:
CHR 624931
Specimen type:
Sheet
Database record added:
20 March 2013
Database record updated:
24 February 2023
Components
Primary component
Active identification
Determined name:
Cyperus congestus ?
Determiner:
Hamish Maule
Identification date:
2013-02-27 (Verbatim: 27 Feb 2013)
Preferred name:
Cyperus congestus Vahl
Division:
Magnoliophyta
Class:
Liliopsida
Order:
Cyperales
Family:
Cyperaceae
Identification type:
Determination
Note:
Conf.: D. Glenny 18/03/2013
Collection events
Primary collection event
Collection event type:
Field
Standard locality
Location:
Wanganui, Castlecliff, Titoki Street Swamp
Georeferences:
Latitude and Longitude (WGS84):
-39.9381 175.004
Verbatim locality:
Wanganui, Castle Cliff, Titoki Street Swamp Reserve
Verbatim collector:
C.C. Ogle 6130; R.C. Ogle
Standardised collector:
Colin C. Ogle; Robyn C. Ogle
Verbatim date:
17 Feb 2013
Start date:
2013-02-17
Land District:
Wellington Land District
Country:
New Zealand
Native lands:
Ngā Rauru Kītahi
Whanganui Iwi / Te Atihaunui a Pāpārangi
Whanganui Land Settlement (Lower Whanganui)
Georeferences:
New Zealand Map Series 260:
R22 812 389 (WGS84 -39.938071 175.003361)
Abundance:
Common
Altitudes:
from 15m
Habitat:
Swamp in dune hollow
Abundance:
Common
Keywords:
Dune; Flat; Hollow; Peat; Reed; Sand; Unconsolidated; Wet
Notes:
Local; FlowerSpikelets purple-red. Plants with tubers. Same location as CHR 570508 - same species? Very difficult to remove rooted pieces from dense roots of the sedge, grasses and other plants, even in the soft peaty sand. If this were to be Cyperus congestus it should uproot easily, but the specimen does not fully match the description of C. rotundus in Flora NZ Vol.3 or some of the pictures I found on websites.
Observed species:
Phormium tenax
Typha
Carex sinclairii
Dactylis glomerata
Schedonorus arundinaceus
Typha
Carex sinclairii
Dactylis glomerata
Schedonorus arundinaceus
Specimen notes
Supplementary remarks:
I agree, this is not Cyperus rotundus because the rhizome is very thick (in C. rotundus the rhizome are very slender and have tubers). The glumes are a good match of C. congestus. But I agree with Colin, the short-creeping rhizome is uncharacteristic for C. congestus. Another very similar species is a possibility.
D. Glenny, 18 Mar 2013
D. Glenny, 18 Mar 2013
Assigned reference numbers
Plant Identification Number:
2012/0488
Permissions
Project permits
Biocultural (BC) Notice
