Adorning the wet subalpine seepages of New Zealand, this creeping montane herb forms dense cushions of succulent foliage. It thrives in high-moisture environments where alpine water flows over rocky outcrops and gravelly soils.
The species is well-adapted to cold climates and prolonged water saturation. It plays a minor but significant role in the micro-ecosystems of high-elevation mountain streams.
The plant is distinguished by its compact, cushion-like growth habit and creeping stems that readily root at the nodes. The succulent leaves are small, obovate to spathulate, and bright green, forming tight rosettes.
Notable morphological details include:
November to February
As a wild mountain species, it is not used in commercial horticulture or landscaping. Its primary value lies in its ecological function of colonizing bare gravel and wet rock surfaces in subalpine zones.
This colonization helps initiate soil formation and provides microhabitats for small alpine invertebrates.
The specific epithet calycina refers to the prominent and well-developed calyx that remains visible even after the flower has withered.
This species is highly dependent on continuous water flow, and its presence is a reliable indicator of stable alpine seepages.
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