Pterostylis williamsonii D.L.Jones

Brown-lip leafy greenhood (en)

Species

Angiosperms > Asparagales > Orchidaceae > Pterostylis

Characteristics

Rosette stalk 10–3  long; leaves 4–6, 3–35 x 3–8mm. Flower stem 90–30  tall; stem leaves 5–7, 40–70 x 4–7mm. Flowers 1–9, 10–14 x 5–7mm, pale translucent green with prominent darker green stripes, shiny. Dorsal sepal tip brown. Lateral sepals often reflexed against ovary, about as wide as galea, 9–12 x 6–7mm, margins curved, tips brown. Petals without basal flanges, 10–12 x 2–2.5mm, outer margin shallowly curved. Labellum 4–5 x 2.5–3mm, broadest at base then tapered, dark chocolate-brown; surface cells mostly bead-like, few hair-like cells at base; basal mound sloping backwards.
Life form perennial
Growth form herb
Growth support free-standing
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Sexuality hermaphrodite
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Environment

Locally common, growing among shrubs and bracken in coastal scrub, forest and under sheoaks in freely draining gravels and clay loam.
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Usage

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Cultivation

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Images

Pterostylis williamsonii unspecified picture

Distribution

Pterostylis williamsonii world distribution map, present in Australia

Identifiers

LSID urn:lsid:ipni.org:names:1006478-1
WFO ID wfo-0000288627
COL ID 4Q6LP
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Oligochaetochilus williamsonii Pterostylis williamsonii Bunochilus williamsonii