Pachystegia insignis (Hook.f.) Cheeseman

Caption:

Details

Name scientific

Pachystegia insignis (Hook.f.) Cheeseman, Man. New Zealand Fl., ed. 2, 910 (1925)

Preferred name

Shawia insignis (Hook.f.) Saldivia & Nicol

Taxonomy reference

Saldivia, P.; Nicol, D.A. 2025: Reinstatement, broader circumscription, and infrageneric classification of Shawia (Astereae, Celmisiinae), a large woody genus endemic to Australasia. Phytoneuron 2025-49: 1–43 (online). (Published online: 11 September 2025)

Linked name

Pachystegia insignis (Hook.f.) Cheeseman

Nomenclature

Combination authors

Cheeseman

Original authors

Hook.f.

Authors

(Hook.f.) Cheeseman

Publication place

Cheeseman, T.F. 1925: Manual of the New Zealand Flora. Edition 2. Government Printer, Wellington.

Year published

1925

Publication page

910

Nomenclatural code

ICN

Basionym

Olearia insignis Hook.f.

Taxonomic rank

species

Canonical form

Pachystegia insignis

Classification

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Asterales

Family

Compositae

Genus

Pachystegia

Species

insignis

Subordinates

Pachystegia insignis var. minor

Vernacular names

Language of use: English

Descriptions

Allan, H.H. 1961: Flora of New Zealand. Vol. I. Indigenous Tracheophyta: Psilopsida, Lycopsida, Filicopsida, Gymnospermae, Dicotyledones. Government Printer, Wellington.

Pachystegia insignis (Hook.f.) Cheeseman

Description

Stout spreading shrub up to 2 m. tall, us. less. Branches stout, densely tomentose. Lvs in subrosettes towards tips of branchlets, very thick and coriac., entire (occ. retuse to emarginate), glab. above when mature, clad in dense soft white to buff or fulvous tomentum below, us. with line of tomentum along margins above. Petioles stout, up to 5 cm. or more long; lamina 6·5-16 × 3-7·5 cm., oblong to obovate-oblong, or ovate-oblong, obtuse. Peduncles 10-30 cm. × 3-5 mm., densely tomentose, nude or with distal foliaceous bracts often subtending capitula. Capitula subglobose; receptacle 1-2 cm. diam. Phyll. tomentose without, glab. and lustrous within. Ray-florets ∞, as are the disk-florets. Achenes c. 1 cm. long, very narrow-linear, silky-hairy. Pappus-hairs c. 1 cm. long, barbellate, slightly thickened above and the barbels there longer.

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