Posts categorized as Plants

New Zealand plants abroad.

  • Kohukohu (Pittosporum tenuifolium) in a front garden in Bristol, UK. Photo credit: Lara Shepherd.
  • A broadleaf (Griselinia littoralis) hedge by a row of terrace houses, Bristol, UK. Photo credit: Lara Shepherd.
  • Flaxes (Phormium tenax), hebes and kohukohu in a suburban garden in Bristol, UK. Photo credit: Lara Shepherd.
  • White flowered hebe in a town planting in the Bristol town centre. Photo credit: Lara Shepherd.

New Zealand plants have a long history of cultivation overseas. In the UK one of the most well known New Zealand plants is the ‘Torquay palm’, which we know as the cabbage tree (Cordyline australis). Cabbage trees, which botanically-speaking are not palms, were first grown in the UK in the early nineteenth century. This species… Read more »

Learn ferns in Wellington, 2

Are you interested in learning more about ferns, and in the Wellington region? The talk in March was so popular that Otari have asked me back for round two.  I’ll lead a walking-talk through the fernery at the wonderful Otari-Wilton’s Bush, Sunday 23rd June 2013, beginning 2pm from the Otari Information Centre. Interested in learning… Read more »

Ferns of Bristol’s stone walls

  • Maidenhair spleenwort (Asplenium trichomanes). Photo credit: Lara Shepherd.
  • Common polypody (Polypodium vulgare). Photo credit: Lara Shepherd.
  • Two forms of wall rue (Asplenium ruta-muraria). The plant on the right reminds me of New Zealand blanket fern. Photo credit: Lara Shepherd
  • The sori of Asplenium scolopendrium, said to look like centipede legs. Photo credit: Lara Shepherd

Whilst recently holidaying in Bristol in the UK I was amazed at the abundance and variety of ferns growing on the stone walls around the city.  The spleenwort or Asplenium ferns seem to be the most common ferns of this habitat. This genus also occurs in New Zealand and includes our hen and chickens fern. … Read more »

Plant Conservation Conference and weedy native plants

Pittosporum crassifolium (karo) is native to the northern North Island. However, it has been widely cultivated, and is now spreading aggressively in many places. In Titahi Bay, karo threatens to displace locally-native species, including some of conservation significance. In the photo, karo is overtopping, and will eventually displace, the locally-native Melicytus obovatus. Photo Leon Perrie. © Te Papa

I’m just back from the 2013 conference of the New Zealand Plant Conservation Network, where I presented a talk about weedy native plants. The programme of talks included updates on the conservation status of New Zealand’s plants, and the new system being implemented by the Department of Conservation to prioritise management of ecosystems and species…. Read more »

Would you mine a rare population?

The umbrella fern Sticherus tener at a site within the planned Escarpment Mine on the Denniston Plateau. Photo Leon Perrie. © Te Papa.

The Escarpment Mine on the Denniston Plateau has been tentatively approved by the Environment Court, subject to suitable mitigation plans. One of the issues that may be under consideration is what to do about the site’s population of the Sticherus tener umbrella fern. Scoop news report: “…tentative nod for Denniston mine plan”. Sticherus tener has… Read more »

How to learn ferns

  • Close up of the scales of Cyathea (left) and the hairs of Dicksonia (right). Photos Leon Perrie, © Te Papa.
  • Trichomanes venosum. In Trichomanes, the reproductive structures are enclosed by a tubular, often trumpet-like structure. Photo Leon Perrie. © Te Papa.
  • Cardiomanes reniforme, kidney fern. More closely related to Hymenophyllum than Trichomanes, although the reproductive structures are at least superficially more similar to the latter. Photo Leon Perrie. © Leon Perrie.
  • Tmesipteris elongata, a fork fern. More closely related to ferns than to seed plants or lycophytes. Nevertheless, the relationship is a distant one, and it doesn’t look very fern like. There are at least five species in New Zealand, and they are usually epiphytic on tree ferns. Photo Leon Perrie. © Te Papa.

Last weekend I was out with the Kapiti-Mana branch of Forest and Bird, giving them an introduction to ferns. A few weeks back, I gave a similar walking-talk at Otari-Wilton’s Bush in Wellington. Many people find ferns an appealing group to learn. Aside from their iconic status in New Zealand, good learning resources are available, and… Read more »

A few more botanical highlights from the Foxton fieldtrip….and a katipo spider!

  • Taking a break from botanizing Viv McGlynn managed to locate this female Katipo spider under a piece of driftwood in the dunes.
  • Sand coprosma (Coprosma acerosa). The fruit colour of this species can vary but the plants we saw in the dunes near Foxton had striking blue fruit.
  • The keen eyes of Bot Soc member Bev Abbott spotted the tiny fruit of sand gunnera (Gunnera arenaria).
  • The distinctive asymmetric flower of Selliera rotundifolia.

I also spent an enjoyable few days over Easter on the Wellington Botanical Society fieldtrip (see Leon’s blog about the trip). Here are a few more photos from the trip. It is difficult to believe that this tiny native species is in the same genus as the huge Chilean rhubarb. The leaves of this weedy… Read more »

The small and the weedy: Foxton field trip

  • A huddle of prostrate people peering intently at the ground; can only mean a botanical society has fixated on some small plant. Photo © Leon Perrie.
  • The botanical society did not progress far through the tangled swamp forest vegetation of Round Bush/Omarupapako Scenic Reserve. However, we went far enough to encounter karaka (Corynocarpus laevigatus) and to debate its merits in the southern North Island, where some people consider it to be weedy. The large trunk at centre is a podocarp, while the trunk to the immediate left is a tall and reproducing but not particularly old karaka. Karaka seedlings are evident in the foreground. Photo © Leon Perrie.
  • Arrowgrass, Triglochin striata, is not actually a grass, and belongs to the unusual monocot family Juncaginaceae. The arrangement of the flowers and the narrow leaves are distinctive. Photo © Leon Perrie.
  • Intermixed Selliera rotundifolia, with the round leaves, and Lilaeopsis novae-zelandiae, with the jointed linear leaves. Selliera rotundifolia is only found in the south-west of the North Island. Photo © Leon Perrie.

I spent a couple of days of the long weekend with the Wellington Botanical Society, exploring the Foxton area, between Whanganui and Palmerston North. Much of the first and second days were spent in the sand dunes between Himatangi and Foxton Beach, and at Koitiata near Turakina.  Some surprising things can become weedy in the… Read more »