Wahlenbergia pygmaea subsp. drucei


Wahlenbergia: Named in honour of Wahlenberg, a Swedish botanist and author of A Botany of Lapland.
pygmaea: tiny
drucei: after A.P. Druce, one of New Zealand's most respected field botanists

Common Name(s)

Mountain harebell, Egmont harebell

Current Conservation Status

2009 - At Risk - Naturally Uncommon

Conservation status of New Zealand indigenous vascular plants, 2012
The conservation status of all known New Zealand vascular plant taxa at the rank of species and below were reassessed in 2012 using the New Zealand Threat Classification System (NZTCS). This report includes a statistical summary and brief notes on changes since 2009 and replaces all previous NZTCS lists for vascular plants. Authors: Peter J. de Lange, Jeremy R. Rolfe, Paul D. Champion, Shannel P. Courtney, Peter B. Heenan, John W. Barkla, Ewen K. Cameron, David A. Norton and Rodney A. Hitchmough. File size: 792KB

Previous Conservation Status

2004 - Range Restricted


Wahlenbergia pygmaea subsp. drucei J.A.Petterson



Flora Category

Vascular - Native

Structural Class

Dicotyledonous Herbs other than Composites


Wahlenbergia pygmaea Colenso subsp pygmaea


Mount Egmont, Taranaki


Montane to alpine. Inhabiting semi-consolidated volcanic grit, where it is usually a pioneer at the foot of a scree or similar bare eroded site. Also colonising white lichen beds (Stereocaulon ramulosum) at lower altitudes on consolidated gravel along the Stony River


Perennial rhizomatous herb with rosulate tufts of leaves at ground level. Leaves bright green, glossy, glabrous or with a few scattered hairs, petiolate; lamina orbicular-spathulate, 10 × 3 to 20 × 5 mm. Leaf margin crenate-serrate, often undulate, teeth conspicuous. Flowers usually insect-pollinated, some forms self-fertile; erect or nodding on short upright scapes, 40-100 mm tall, which may be naked or 1-2-bracted. Corolla pale blue with creamy-white central band in each petal; up to 30 mm diameter, up to 18 mm long, broadly campanulate with tube as broad as or broader than long, lobes c.9 × 7 mm, spreading, broadly elliptic-lanceolate, acute. Calyx lobes c.3.0 × 1.5 mm, glabrous, narrow-triangular. Capsule c.10 × 6 mm, glabrous, domed cylindrical to plump barrel-shaped. Seeds ellipsoid, glossy brown.

Similar Taxa

Differs from subsp. pygmaea by its restriction of Mt Taranaki; by its spathulate leaves which are conspicuously toothed along the margins; and by the flowers which are pale blue with a creamy-white central band in each petal.


November January

Flower Colours



December - February

Propagation Technique

Easily grown from tip cuttings and the division of whole plants. Fresh seed germinates readily.


A Naturally Uncommon range-restricted endemic that is abundant within the montane to alpine areas of Mt Taranaki. There are no known threats.

Chromosome No.

2n = 36

Endemic Taxon


Endemic Genus


Endemic Family


Where To Buy

Not Commercially Available


Fact Sheet Prepared by P.J. de Lange 12 June 2007. Description adapted from Petterson (1997).

References and further reading

Petterson, J.A. 1997: Revision of the genus Wahlenbergia (Campanulaceae) in New Zealand. New Zealand Journal of Botanv 35: 9-54.

This page last updated on 9 Aug 2016