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Electronic Flora of South Australia species Fact Sheet

Family: Orchidaceae
Pterostylis parviflora

Citation: R. Br., Prod. Fl. Nov. Holl. 327 (1810).

Synonymy: Not Applicable

Common name: Tiny green-hood.

Description:
A small slender species, 5-25 cm high; radical leaves not developed during the flowering stage or sometimes represented by a small lateral tuft at the base of the scape; no stem leaves except several small acute bracts.

Flowers 1-10, small, green with rufous markings, racemose; galea much incurved, apex rather blunt in the living plant, not produced into a fine point, 8-10 mm long; lateral sepals (lower lip) cuneate, erect; lobes including a very wide sinus with a notch in the middle, shortly acuminate, embracing the galea and about as long as it; labellum oblong or linear-oblong, on a movable claw; the tip slightly recurved, obtuse; lamina c. 2.5 mm long, traversed by a broad red raised central line with a narrow red line on either side of it; basal appendage linear, curved, 3-partite; column c. 5 mm long, erect, slightly longer than the labellum; upper angle of wings produced into an acute tooth, the lower lobe oblong, ciliate; stigma relatively large and prominent, cordate.

Published illustration: Fitzgerald (1882) Australian orchids vol. 1, pt 7; Cady & Rotherham (1970) Australian native orchids in colour, pl. 9; Woolcock (1984) Australian terrestrial orchids, pl. 63B.

Distribution:  Occurs singly or in small groups in damp sandy soils in light open forest. Very restricted in S.Aust.

  Qld; N.S.W.; Vic.; Tas.

Conservation status: native

Flowering time: March — June.


SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia

Biology: No text

Author: Not yet available


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