Pterostylis dilatata A.S.George

Robust snail orchid (en)

Species

Angiosperms > Asparagales > Orchidaceae > Pterostylis

Characteristics

Rosette leaves 3–6, ovate, 5–9 x 4–6 mm, dark green, margins entire. Flower stem 80–150 mm tall, with 3–6 stem leaves to 23 × 5 mm. Flower erect, 18–24 × 6–8 mm, white with bright green stripes and suffusions. Dorsal sepal shortly pointed. Sinus curved in side view, flat in front view. Petals broadly flared. Free points 11–15 mm long, erect, divergent, tips thickened. Labellum hidden in flower, tip curved forwards, 5.5–6.5 × 2 mm, scabrous.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
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Mature height (meter) 0.08 - 0.15
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Nitrogen fixer -
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Environment

Widely, but disjunctly, distributed in near-coastal and semi-inland areas; found growing in woodland, mallee communities, shrubland and on granite outcrops in freely draining sand, gravel and clay loam. Colonises pine plantations.
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Usage

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

Cultivation

Mode -
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Distribution

Pterostylis dilatata world distribution map, present in Australia

Identifiers

LSID urn:lsid:ipni.org:names:905053-1
WFO ID wfo-0000288478
COL ID 4Q6FH
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Pterostylis dilatata Linguella dilatata