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Pyrorchis spp.
red beaks
Overview
Pyrorchis spp. is a genus of two terrestrial orchids endemic to Australia, made up of P. nigricans, the red beaks orchid, and P. forrestii. Both are tuberous geophytes that spend the dry season dormant underground and send up a single, rounded to heart-shaped leaf that lies flat or nearly flat on the ground, 1.5-4 inches (4-10 cm) across, in autumn and winter. When flowering, a stem 4-16 inches (10-40 cm) tall carries a few to several flowers, white to pinkish and heavily streaked and blotched with red or purple, with fringed lip margins. The flowers and plant blacken as they dry, giving rise to names such as undertaker orchid. The genus is strongly fire-stimulated: large-scale flowering usually follows a summer bushfire the previous season, and in unburnt ground the plants often produce only leaves for years. Pyrorchis spp. grows in seasonally moist, sandy or loamy soils in heath, shrubland, and open woodland, and like most terrestrial orchids depends on specific soil fungi. It is rarely cultivated and difficult to grow outside its natural habitat.
Native Range
Pyrorchis spp. is endemic to Australia. P. nigricans is widespread across southern Australia, including Western Australia, South Australia, Victoria, New South Wales, and Tasmania, while P. forrestii is restricted to south-western Western Australia. Plants grow in seasonally wet heath, shrubland, and open forest on sandy or loamy soils.Suggested Uses
Pyrorchis spp. is grown mainly by specialist terrestrial orchid enthusiasts and in native plant and conservation collections rather than general gardens. In the wild it is a characteristic part of fire-driven heath and woodland flora. It is studied for its strong link between fire, smoke, and flowering.How to Identify
Appearance
Size & Dimensions
Height4" - 1'4"
Width/Spread2" - 4"
Reaches mature size in approximately 4 years
Bloom Information
Flowering occurs mainly in spring, roughly September to November in Australia, and is strongly tied to summer fire the previous season. After a burn, plants can flower in large numbers; in unburnt sites they usually remain leaf-only. Individual flowers last a few weeks before blackening.
Detailed Descriptions
Flower Description
white to pink streaked with red-purpleFoliage Description
greenGrowing Conditions
Sun Requirements
Requires 4-8 hours of direct sunlight daily
• Full Sun: 6+ hours of direct sunlight
• Partial Shade: 3-6 hours of direct sunlight
• Full Shade: Less than 3 hours of direct sunlight
Care & Maintenance
Care Guide
Pyrorchis spp. is a fire-adapted terrestrial orchid that is rarely cultivated and challenging to maintain outside its native habitat. Like most Australian ground orchids, it depends on a partnership with specific soil fungi, so it cannot simply be dug up and transplanted. In habitat it needs seasonally moist, sandy or loamy soil that dries out during the plant summer dormancy, full sun to light shade, and undisturbed ground. Reliable flowering is linked to fire or, in cultivation, to smoke treatments that mimic it. Specialist growers raise it in deep pots of free-draining native orchid mix, keeping tubers dry while dormant. Disturbance of the soil and its fungi is the main cause of failure.Pruning
No pruning is required for Pyrorchis spp.. The single leaf and flower stem die back naturally as the plant enters summer dormancy. Spent growth is left undisturbed over the dormant tuber.Container Growing
✓ Suitable for container growing
Minimum container size: 2 gallons