Native seed catalogue

Pterophylla racemosa Kamahi | Kāmahi

This guide is based on a literature review. It compiles information from various sources. Different sources may offer varying advice and findings.

Other known names

Weinmannia racemosa.

Propagation summary

Good germination rate and seed viability. Uncertainties found with sowing to germination time frame and long-term storage.

Seed propagation category

Easy.

Geographical distribution

Found most abundant in the North Island in elevations above 300 m and in the west and south of the South Island at sea level.(1)

Seed collection

Seeds mature between January–March.(2) Each fruit may have up to 8 seeds.(3) Seeds can be dispersed by wind.(3)

Seed storage

54% germination after 7 months of dry storage.(3)

Seed dormancy

15 days to first germination and can take up to 100 days.(3)

Pre-sowing treatments

Pericarp (fruit) needs to be removed from around seeds.(3) Cool-moist stratification for 1 month.(2) Stratification is the process of chilling seeds to promote germination.

Seed viability

85% of seeds are viable.(3)

Germination

Germination rate of 85%.(3)

Propagation techniques

Germination is poor on soil (22%).(3) Germination is inhibited in the dark.(3)

Site sensitivity

Not tolerant to low soil phosphorus levels.(4)

Research opportunities

Germination and vegetative propagation need further investigation.

Information about the native seed profiles

All species names are in the following order: scientific name, common name, and Māori name. Names may vary by region. We have tried to use the most common names across New Zealand.

We have sourced photos from different websites and creators. We have used the images under different licences. These include Public Domain and Creative Commons licenses. For Pterophylla racemosa, the image details are:

The basis for each seed profile is a literature review carried out by Scion. Te Uru Rākau – New Zealand Forest Service commissioned and worked on the review to produce a native seed catalogue. The full seed catalogue is on the Ministry for Primary Industries (MPI) website.

References

1.

Wardle, P; Macrae, A H (1965) Biological flora of New Zealand (Weinmannia racemosa Linn F. (Cunoniaceae)) Kamahi. New Zealand Journal of Botany 4, 114–131.

2.

Metcalf, L J (1995) The propagation of New Zealand native plants. Godwit; Auckland, New Zealand. 

3.

Burrows, C J (1999) Germination behaviour of seeds of the New Zealand woody species Beilschmiedia tawa, Dysoxylum spectabile, Griselinia lucida, and Weinmannia racemose. New Zealand Journal of Botany 37(1), 95–105.

4.

Hall, I R (1974) Endomycorrhizas of Metrosideros umbellata and Weinmannia racemose. New Zealand Journal of Botany 13(3), 463–472.

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