Coprosma petriei
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Article from Bean's Trees and Shrubs Hardy in the British Isles
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'Coprosma petriei' from the website Trees and Shrubs Online (treesandshrubsonline.
A dwarf plant with prostrate stems forming broad patches 2 to 3 in. high. The leaves are dark green, densely crowded, narrow oblong or obovate, 1⁄8 to 1⁄4 in. long, more or less hairy. Fruit ranging in colour from port-wine (var. atropurpurea Ckn. & Allan) to various shades of blue, only borne in the presence of a male plant.
A native of New Zealand, found in both islands to about 4,000 ft.
C. atropurpurea was formerly considered a variety of this species, but even then it was noted that the two formed distinct populations, and did not cross in the wild – striking, in view of the readiness with which the coprosmas hybridise (Fl. New Zealand, Vol. 1, p. 566).
[From the Supplement (Vol. V)]
Male and female plants (the latter with pearly white fruits) are available from an introduction by Graham Hutchins from Lake Lyndon in the South Island in 1977. There is also a female clone with pale blue fruits introduced in 1981 by the same collector.