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Ourisia vulcanica

Ourisia vulcanica
Photo: Hannah Rogers, CC BY 4.0

Ourisia vulcanica is a small perennial New Zealand foxglove from the subalpine and alpine zones of the Volcanic Plateau in the North Island, with white flowers and a creeping, rhizomatous habit. It is a rare, naturally uncommon native, so it is grown mainly by specialist collectors in cool, moist conditions.

Family
Plantaginaceae (Plantain family)
Grows as
Perennial
Light
Part shade
Water
Keep the soil evenly moist through the growing season and avoid drying out, while never letting it sit waterlogged.
Soil
Humus-rich, free-draining but moisture-retentive mix, ideally with some grit or scoria.
Temperature
10–20 °C; hardy to about -10 °C in cool, moist conditions, and it dislikes sustained heat above roughly 25 °C.
How easy
Hard
Native range
C. New Zealand North I.
Climate
subalpine or subarctic

About

Ourisia vulcanica is a species of flowering plant in the family Plantaginaceae that is endemic to the North Island of New Zealand. Lucy Moore described O. vulcanica in 1961. Plants of this species of New Zealand foxglove are showy, perennial, rhizomatous herbs that can be hairy with non-glandular hairs or sometimes glabrous. They have crenate, ovate leaves. The flowers are usually in pairs in each node, with an irregular calyx, and a white irregular corolla. The calyx and floral bracts have non-glandular hairs. The corolla tube is yellow with three lines of hairs and a ring of hairs inside. It is only found in the Volcanic Plateau area and is listed as At Risk - Naturally Uncommon.

Where it grows

Ourisia vulcanica is endemic to the central North Island in the Volcanic Plateau area, including Tongariro National Park and the Kaimanawa Range.

Other Ourisia plants

Ourisia alpina · Ourisia biflora · Ourisia breviflora subsp. breviflora · Ourisia breviflora subsp. uniflora · Ourisia breviflora · Creeping Mountain Foxglove · Ourisia calycina · Ourisia chamaedrifolia · Ourisia coccinea subsp. coccinea · Ourisia coccinea subsp. elegans · Ourisia coccinea · Ourisia confertifolia

Text excerpted from the Wikipedia article Ourisia vulcanica by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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