Carex colensoi Boott

Caption:

Details

Name scientific

Carex colensoi Boott in Hooker, Bot. Antarct. Voy. II. (Fl. Nov.-Zel.) Part I, 281, t. 63B. (1853)

Preferred name

Carex colensoi Boott

Taxonomy reference

Ford, K.A. 2025: A taxonomic revision of New Zealand species of Carex section Inversae Kük. (Carex subgenus Vignea, Cyperaceae). New Zealand Journal of Botany: 1–73 (online) DOI: 10.1080/0028825X.2025.2458506. (Published online: 13 Feb 2025)

Linked name

Carex colensoi Boott

Biostatus

Origin

Occurrence

Georegion

Schema

Biostatus source

Comment

Endemic

Wild

New Zealand

Political Region

Ford, K.A. (2025)

Nomenclature

Original authors

Boott

Authors

Boott

Publication place

Hooker, J.D. 1852–1853 ("1853"): The Botany of the Antarctic Voyage of H.M. Discovery Ships Erebus and Terror in the Years 1839–1843, under the command of Captain Sir James Clark Ross. II. Flora Novae-Zelandiae. Part I. Flowering plants. Lovell Reeve, London.

Year published

1853

Publication page

281, t. 63B.

Nomenclatural code

ICN

Basionym

Carex colensoi Boott

Taxonomic rank

species

Canonical form

Carex colensoi

Typification

Lectotype (selected by E. Edgar in Moore and Edgar 1970, p. 283): Dry plains, road to Manawarakau from Patangata [Hawke’s Bay], Colenso 1088, K 907573; isolectotypes: WELT 22190, K 907574

Moore, L.B.; Edgar, E. 1970: Flora of New Zealand. Vol. II. Indigenous Tracheophyta: Monocotyledones except Gramineae. Botany Division DSIR, Wellington.

Classification

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Poales

Family

Cyperaceae

Genus

Carex

Species

colensoi

Vernacular names

Language of use: English

colenso's sedge

Synonyms

Carex picta Colenso

Descriptions

Dawson, M.I. 2008: Index of chromosome numbers of indigenous New Zealand vascular plants.

Carex colensoi Boott

Description

2n = c. 60–64

Healy, A. J.; Edgar, E. 1980: Flora of New Zealand. Vol. III. Adventive Cyperaceous, Petalous and Spathaceous Monocotyledons. Government Printer, Wellington.

Carex colensoi Boott

Description

Slender tufts to 25 cm high; rhizome far-extending. Leaves < stems. Inflorescence relatively large, ± drooping on a very slender stem, an ovate cluster of 1-4 chestnut-brown sessile spikes, ± 1 cm long, with much longer green filiform bract. Male flowers at base of spikes. Stigmas 2.

Moore, L.B.; Edgar, E. 1970: Flora of New Zealand. Vol. II. Indigenous Tracheophyta: Monocotyledones except Gramineae. Botany Division DSIR, Wellington.

Carex colensoi Boott

Description

In distinct light green patches of slender tufts from a long-creeping rhizome. Rhizome 2–3 mm. diam., woody, often much branched and knotted, with shoots spaced singly and evenly along it, 1–1.5 mm. diam. at base. Culms rather variable in height, 4–25–(45) cm. × c. 0.5 mm., trigonous, flaccid, glab.; basal sheaths cream, grey, or light brown. Lvs us. < culms, occ. = or > culms, 0.5–1.5 mm. wide, soft, grasslike, channelled, occ. almost flat, margins minutely serrulate just below trigonous tip. Infl. 1–1.5 cm. long, of 1–4 clustered, shortly-peduncled, chestnut-brown spikes, subtended by a green, filiform, lf-like bract, much > infl., with margins minutely serrulate. Spikes androgynous, 7–10 × (2)–4–5 mm., ovoid, male fls at the base. Glumes = or slightly > utricles, ovate, subacute, brown, with a broad green midrib and broad silver hyaline margins. Utricles 2.5–3.5 × 1.5–2 mm., plano-convex, occ. almost subtrigonous when mature, brown, shining, with nerves not distinct, margin of upper part finely scabrid; beak hardly developed, c. 0.5 mm. long; stipe c. 0.5 mm. long. Stigmas 2. Nut c. 1.5 mm. long, ± biconvex, elliptic-oblong to orbicular, brown with a distinct stipe c. 0.2 mm. long.

Taxonomic concepts

Name

Cited name

Reference

Preferred name

Parent name

Carex colensoi Boott

Carex colensoi Boott

Dawson, M.I. (2008)

Carex L.

Carex colensoi Boott

Carex colensoi Boott

de Lange, P.J.; Rolfe, J.R. et al. (2013)

Carex colensoi Boott

Carex colensoi Boott

de Lange, P.J.; Rolfe, J.R. et al. (2018)

Carex colensoi Boott

Carex colensoi Boott

Ford, K.A. (2025)

Carex colensoi Boott

Carex colensoi Boott

Healy, A. J.; Edgar, E. (1980)

Carex colensoi Boott

Carex colensoi Boott

Moore, L.B.; Edgar, E. (1970)

Carex picta Colenso

Carex picta Colenso

Ford, K.A. (2025)

Carex colensoi Boott

Carex picta Colenso

Carex picta Colenso

Moore, L.B.; Edgar, E. (1970)

Carex colensoi Boott

Collections

Determined name

Country

Geographic region

Indicative databased records

Carex colensoi Boott

New Zealand

Carex colensoi Boott

New Zealand

Canterbury Land District

Carex colensoi Boott

New Zealand

Hawke's Bay Land District

Carex colensoi Boott

New Zealand

Marlborough Land District

Carex colensoi Boott

New Zealand

Nelson Land District

Carex colensoi Boott

New Zealand

Otago Land District

Carex colensoi Boott

New Zealand

South Auckland Land District

Carex colensoi Boott

New Zealand

Southland Land District

Carex colensoi Boott

New Zealand

Wellington Land District

Notes

Note type

typification

Note text

Lectotype (selected by E. Edgar in Moore and Edgar 1970, p. 283): Dry plains, road to Manawarakau from Patangata [Hawke’s Bay], Colenso 1088, K 907573; isolectotypes: WELT 22190, K 907574

Note reference

Moore, L.B.; Edgar, E. 1970: Flora of New Zealand. Vol. II. Indigenous Tracheophyta: Monocotyledones except Gramineae. Botany Division DSIR, Wellington.

Metadata

Record id

32f37abc-23c4-49c9-8f00-721a02863968

Record class

scientific name

Record source

Names_Plants

Date added

1 January 2000

Date last updated

16 February 2025

BIOTAof NEW ZEALAND

BIOTA of NEW ZEALAND

Names and classification of bacteria, fungi, land invertebrates and plants