Rosy hyacinth orchid

Dipodium roseum

Dipodium roseum is a leafless saprophytic orchid found in east and south-eastern Australia. In summer it produces a tall flowering stem with up to fifty pale pink flowers with small, dark red spots. A widespread and common species it is often confused with "D. punctatum" but has darker, less heavily spotted flowers.
Rosy hyacinth orchid - Dipodium roseum  Australia,Dipodium roseum,Eamw flora,Fraser trust reserve,Geotagged,Rosy hyacinth orchid,Summer,orchids

Appearance

"Dipodium roseum" is a leafless, tuberous, perennial, mycoheterotrophic herb. Between fifteen and fifty pale pink flowers with small dark red spots and 20–30 mm wide are borne on a green to dark reddish black flowering stem 40–100 cm tall. The sepals and petals are linear to elliptic, 13–20 mm long, 3–6 mm wide and free from each other with their tips curved backwards. The labellum is pink with dark lines, 10–15 mm long, 4–6.5 mm wide and has three lobes with their tips turned upwards. The centre lobe has a broad band of pink to mauve hairs. A rare white-flowering form also exists. Flowering occurs from November to February.

This orchid is often confused with "D. punctatum" but has a broader band of labellum hairs, smaller dark red spots and more recurved sepals and petals.
Rose hyacinth orchid (Dipodium roseum  Dipodium roseum,Rosy hyacinth orchid

Naming

"Dipodium roseum" was first formally described in 1991 by David Jones and Mark Clements and the description was published in "Australian Orchid Research". The type specimen was collected in Montrose in Victoria's Dandenong Ranges. The specific epithet is a Latin word meaning "rose-coloured", referring to the colour of the flowers of this orchid. The species was previously included in a wider circumscription of "Dipodium punctatum".
Rosy hyacinth-orchid - Dipodium roseum  Australia,Dipodium roseum,Eamw flora,Eamw orchids,Geotagged,Rosy hyacinth orchid,Summer

Distribution

The rosy hyacinth orchid grows in a range of habitats from dry woodland to wet forests. It occurs in Queensland south from Gympie, on the coast and ranges of New South Wales and the Australian Capital Territory and in most of Australia where it is the most common "Dipodium". It is also found in the south-east of South Australia and is the only member of the genus to occur in Tasmania.

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Taxonomy
KingdomPlantae
DivisionAngiosperms
ClassMonocots
OrderAsparagales
FamilyOrchidaceae
GenusDipodium
SpeciesD. roseum
Photographed in
Australia