Dipodium punctatum
blotched hyacinth-orchid
Overview
Dipodium punctatum is a leafless terrestrial orchid that draws its nutrients from soil fungi rather than from photosynthesis. A single fleshy flowering stem 12-39 inches (30-100 cm) tall rises from underground tubers in summer, without any leaves. The upper part of the stem carries 10-50 flowers, each 0.8-1.2 inches (2-3 cm) across, pink to pale red and spotted with darker red to purple blotches. After flowering the stem sets capsules and dies back, and the plant stays dormant underground for the rest of the year. It grows in dry sclerophyll forest and woodland, often near eucalypts, and depends on specific soil fungi. This fungal dependence makes it difficult to cultivate or transplant.
Native Range
Native to eastern and southeastern Australia, from Queensland through New South Wales and Victoria to Tasmania and South Australia. It grows in dry sclerophyll forest and woodland on well-drained sandy and loamy soils, usually among eucalypts.Suggested Uses
Found in conservation areas, bushland, and forest reserves rather than cultivated gardens. It is studied for its mycoheterotrophic biology and marks undisturbed eucalypt forest. It is not suited to garden cultivation.How to Identify
Appearance
Size & Dimensions
Height1' - 3'3"
Width/Spread4" - 8"
Bloom Information
Flowers in summer, December through February in the native range. Flowering is irregular between years and heavier after good spring rainfall. Plants may not emerge above ground in dry years.
Detailed Descriptions
Flower Description
pink with red to purple blotchesGrowing Conditions
Sun Requirements
Requires 2-5 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