Diuris aurea Sm.

Species

Angiosperms > Asparagales > Orchidaceae > Diuris

Characteristics

Leaves 2, 100–250 × 4–8 mm, folded. Flower stem 300–600 mm, 2–5-flowered. Flowers 30–35 mm across, golden or orange, usually with dark brown markings on labellum and dorsal sepal, sometimes unmarked. Dorsal sepal erect or recurved, 10–15 × 10–14 mm. Lateral sepals deflexed, 20–25 × 3–5 mm, broadest near apex. Petals obliquely erect or recurved; stalk 5–8 mm long, brown; blade broadly ovate, 10–17 × 10–14 mm. Labellum 12–16 mm long; lateral lobes 4–6 × 2–4 mm, irregularly toothed; midlobe 9–13 × 8–13 mm, folded. Callus ridges 2, 6–7 mm long.
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A ground orchid. It grows 15-50 cm high. The leaves are 10-25 cm long by 0.3-0.6 cm wide. There are 1-2 leaves per plant. They are narrow and have a channel along them. The flower stem is 15-50 cm tall and has 2-5 flowers. The flowers are 2.5-4.5 cm wide and a deep golden yellow. Tubers can be quite large.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.15 - 0.5
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
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Nitrogen fixer -
Photosynthetic pathway -

Environment

Widespread and common, often forming loose colonies. This orchid is prominent in coastal districts, especially following wet winters, but also extends to ranges and tablelands. In coastal areas it grows among low heath on windswept headlands, in shallow soil among shrubs on sandstone pavements, and in heathland and heathy forest in freely draining, sandy soil. Further inland it grows among grass and scattered shrubs in open forest and woodland in loam and clay loam.
More
It grows in tropical to warm temperate locations. It occurs in Queensland and New South Wales in Australia. It grows in open forest. It needs a rich, well-drained soil and a protected, shaded position. It is damaged by frost or drought.
Light -
Soil humidity -
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Soil acidity -
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Hardiness (USDA) -

Usage

Uses -
Edible roots tubers
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Plants can be grown from seed. They can also be grown by division.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
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Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Diuris aurea unspecified picture

Distribution

Diuris aurea world distribution map, present in Australia

Identifiers

LSID urn:lsid:ipni.org:names:630425-1
WFO ID wfo-0000944959
COL ID 36ZM8
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Diuris spathulata Diuris aurea var. obtusa Diuris aurea