Leaves basal or scattered along the stem, several per shoot, convolute, petiolate or sessile.
Inflorescence racemose, 1–several-flowered, terminal; flowers resupinate. Dorsal sepal adherent to lateral petals to form a helmet (galea), about as long as lateral sepals. Lateral sepals basally fused, often erect and embracing the galea. Lateral petals shorter or rarely longer than dorsal sepal. Labellum free, attached to column foot by a short, irritable claw; lamina not lobed or less frequently 2[–4]-lobed, usually with a basal appendage and sometimes with a terminal knob. Column lacking free filament and style; column wings fused to column, expansive in upper half, where they are usually 2-lobed, broad. Column foot much shorter than column. Anther erect to incumbent, persistent. Pollinia 4, soft and mealy. Stigma entire, situated at about the middle of the column. Rostellum ventral.
We do not to recognise the following genera segregated from, or resurrected from synonymy under Pterostylis by Jones & Clements (2002, Australian Orchid Research volume 4): Bunochilus, Crangonorchis, Diplodium, Eremorchis, Hymenochilus, Linguella, Oligochaetochilus, Petrorchis, Pharochilum, Plumatichilos, Ranorchis, Speculantha, Stamnorchis, Taurantha, Urochilus. Those authors justified recognition of these genera on the grounds that their phylogenetic analysis showed these taxa all to be monophyletic and that each was supported by some morphological characters. However, as these authors also noted, Pterostylis, as traditionally circumscribed, is also a monophyletic group that is strongly supported by both morphological and molecular data. Therefore, there was no grouping problem to resolve by recircumscribing genera that were not monophyletic. The insights into relationships gleaned from molecular and morphological data can as well be enshrined within the Linnean hierarchy at the level of subgenus, without disruption of established concepts, and numerous name changes. The key below is based on the previous PlantNet key, Jones (2006)'s Bunochilus revision. It is a beta version and was put up online on 30 January 2020. No key of this scope for such an intricate group of plants is ever perfect – if you identify any errors or omissions, or can suggest improvements please use the Contact Us link on the green banner above. Note added 8 April 2020: Thank you to Lachlan Copeland and Gavin Phillips for providing couplets for the Speculantha group, and many other correspondents so far, for identifying errors and omissions in both key and descriptions.
| | Key to the species | |
| 1 | Lateral sepals deflexed away from the galea | 2 |
| Lateral sepals erect and embracing the galea | 46 |
| 2 | Labellum lamina filiform with an apical knob and numerous long yellow trichomes [Plumatochilos] | 3 |
| Labellum flat, lacking an apical knob and yellow trichomes
Back to 1 | 5 |
| 3 | Galea bearing a rostrum at its apex, around 4 mm long | Pterostylis plumosa |
| Galea without a rostrum, or with a short rostrum at its apex, to 1.5 mm long
Back to 2 | 4 |
| 4 | Labellum with trichomes more or less equal maximum length from base to near tip, extending at even density from base to near the apical callus | Pterostylis tasmanica |
| Labellum with trichomes shortening toward the apex, and becoming sparse in the vicinity of the apical callus
Back to 3 | Pterostylis sp. Botany Bay (A.Bishop J221/1–13) |
| 5 | Labellum with each lateral lobe developed as large basal extension, appearing as a marginal ridge causing the labellum base to appear furrowed; rosette leaves attached to a growth arising laterally from the base of a scape | Pterostylis daintreana |
| Labellum lacking lateral lobes or with poorly developed lateral lobes that do not extend basally; rosette either stem-encircling or only on non-flowering plants
Back to 2 | 6 |
| 6 | Stem leaves well-developed and spreading, rosette only developed on non-flowering plants [Bunochilus] | 7 |
| Stem leaves reduced and tightly sheathing the peduncle, rosette leaves encircling the base of a scape
Back to 5 | 21 |
| 7 | Petal flanges reduced or absent, not blocking off the internal base of the galea. | 8 |
| Petal flanges present, large, projecting and blocking off the internal base of the galea.
Back to 6 | 20 |
| 8 | Synsepalum elliptic, petals with reduced basal flanges, the anterior margin straight or shallowly curved | 9 |
| Synsepalym ovate, petals without basal flanges, then anterior margin broadly curved
Back to 7 | 18 |
| 9 | Labellum appearing hairy with transparent acicular siliceous cells over most of its surface | 10 |
| Labellum not appearing hairy, transparent acicular cells confined to the labellum base, or absent
Back to 8 | 11 |
| 10 | Flowers 10–13 mm long, labellum midlobe 0.5–1.0 mm long | Pterostylis longifolia |
| Flowers 14–18 mm long, labellum midlobe 1.0–1.6 mm long
Back to 9 | Pterostylis major |
| 11 | Labellum cream to pale yellow, with a conspicuous dark central stripe | 12 |
| Labellum wholly dark, brown or blackish, central stripe inconspicuous
Back to 9 | 16 |
| 12 | Labellum with numerous acicular cells at the base | 13 |
| Labellum with few acicular cells at the base
Back to 11 | 15 |
| 13 | Flowers dark green with bright orange-brown tips on the sepals | Pterostylis jonesii |
| Flowers pale green with light-brown tips on the sepals
Back to 12 | 14 |
| 14 | Flowers 12–15 mm long, labellum midlobe c. 1 mm long | Pterostylis melagramma |
| Flowers 17–20 mm long, labellum midlobe 1.5 mm long
Back to 13 | Pterostylis lineata |
| 15 | Labellum with a long recurved apical lobe on the basal mound | Pterostylis barringtonensis |
| Labellum with a short erect lobe on the basal mound
Back to 12 | Pterostylis loganii |
| 16 | Flowers 17–20 mm long, labellum 5–7.5 mm long, midlobe 1.5 mm long. | Pterostylis chocolatina |
| Flowers 7–15 mm long, labellum 3.5–5.0 mm long, midloe 0.5–1.0 mm long
Back to 11 | 17 |
| 17 | Labellum without any acicular cells | Pterostylis parca |
| Labellum base with a few short acicular cells
Back to 16 | Pterostylis tunstallii |
| 18 | Labellum equal width throughout, pale green with a darker stripe | Pterostylis macrosepala |
| Labellum widest toward apex, brown with a darker stripe
Back to 8 | 19 |
| 19 | Labellum basal mound small, rounded, with a vestigial apical lobe | Pterostylis tenuis |
| Labellum with a well-developed basal mound and an erect apical lobe
Back to 18 | Pterostylis umbrina |
| 20 | Galea wider than the oblong synsepalum | Pterostylis stenosepala |
| Galea equal in width or narrower than the elliptic synsepalum
Back to 7 | Pterostylis smaragdyna |
| 21 | Labellum lamina glabrous, thin and membranous, with a well-developed dark-coloured basal appendage, lacking trichomes. Sepals obtuse to acute, apices not drawn out into a filimentous tip. [Hymenochilus] | 22 |
| Labellum lamina thick and fleshy, covered with transparent siliceous cells, basal appendage absent or poorly developed, margins with spreading trichomes. Sepals acuminate or (usually) drawn out into a filimentous tip. [Oligochaetochilus]
Back to 6 | 26 |
| 22 | Labellum appendage recurved, central lobe not produced into a knob-like structure | Pterostylis mutica |
| Labellum appendage erect, central lobe produced into a beak-like structure
Back to 21 | 23 |
| 23 | Labellum appendage dark green, central lobe of appendage prolonged and pointed, forming the 'swan's head'. [P. cycnocephala sens. lat.] | 24 |
| Labellum appendage blue-black, central lobe of appendage short and blunt. [P. bicolor sens. lat.]
Back to 22 | 25 |
| 24 | Flowers pale translucent green with darker green nerves. Rosette leaves elliptic, 10–35 mm long by 5–25 mm wide. Less robust plants of sclerophyll forest and grassland | Pterostylis cycnocephala |
| Flowers opaque white, strikingly lined in well-defined mid- to dark-green lines along the nerves. Rosette leaves broadly ovate to elliptic, 25–45 mm long by 10–25 mm wide. More robust plants of alpine and subalpine grassland and herbfield
Back to 23 | Pterostylis crassicaulis |
| 25 | Labellum obovate to oblong, with a black-green appendage. Taller stature plants from forests and grasslands. | Pterostylis bicolor |
| Labellum elliptic, with short thick black appendage. Smaller stature plants with more densely crowded racemes of alpine grassland and herbfield.
Back to 23 | Pterostylis clivicola |
| 26 | Labellum with 2 prominent basal trichomes 2.5–6 mm long, arising near the base and directed forwards | 27 |
| Labellum lacking 2 prominent, erect basal trichomes, those trichomes present in basal area less than 2 mm long
Back to 21 | 32 |
| 27 | Basal lobe of the labellum c. 3 mm long, filamentous tips of lateral sepals c. 10 cm or more long | Pterostylis woollsii |
| Basal lobe of the labellum c. 1 mm long, filamentous tips of lateral sepals less than 2 cm long
Back to 26 | 28 |
| 28 | Flowers transparent with dark brown markings, labellum obovate | Pterostylis maxima |
| Flowers transparent with green or light brown markings, labellum elliptic-oblong
Back to 27 | 29 |
| 29 | Plants diminutive, 5–8 cm tall, sepal tips usually in contact with the ground | Pterostylis despectans |
| Plants robust, 7 to 35 cm tall, flowers held well clear of the ground and not in contact with it.
Back to 28 | 30 |
| 30 | Plants with clumping habit. | Pterostylis pedina |
| Plants solitary.
Back to 29 | 31 |
| 31 | Taller growing habit (scape to 25 cm tall), narrower galea (not measured), longer free points on sepals (7–21 mm long), smaller petals (c. 13 x 5 mm), and shorter (5–6 mm) oblong labellum | Pterostylis biseta |
| Shorter growing habit (scape 9–15 cm tall), wider galea (not measured), shorter free points on sepals (14–20 mm long), larger petals (16–19 mm x 5–6 mm), and longer (7–9 mm) oblong-elliptic to elliptic labellum
Back to 30 | Pterostylis petrosa |
| 32 | Labellum margins scalloped inwards between trichomes | Pterostylis lingua |
| Labellum margins flat between trichomes
Back to 26 | 33 |
| 33 | Lateral sepals reflexed back against the ovary, flower green with a contrasting darker labellum | 34 |
| Lateral sepals deflexed, not reflexed back against the ovary, flowers various colours and shades, labellum not contrasting against green flower.
Back to 32 | 35 |
| 34 | Labellum with 4 or 5 setae on each side, generally only one of which is prominent. Lateral sepals filiform for around one third their length | Pterostylis gibbosa |
| Labellum with 6 to 8 setae on each side. Lateral sepals filiform for around one half their length.
Back to 33 | Pterostylis mitchellii |
| 35 | Tips of lateral sepals hooked forwards | 36 |
| Tips of lateral sepals deflexed or curved gently forwards, not hooked
Back to 33 | 38 |
| 36 | Proximal flanges of petals not meeting leaving a gap, labellum wholly visible from the side | Pterostylis setifera |
| Proximal flanges of petals meeting and blocking off the base of the galea, labellum not or only partially visible from the side
Back to 35 | 37 |
| 37 | Flower c. 1.2 cm long | Pterostylis calceolus |
| Flower c. 2 cm long
Back to 36 | Pterostylis hamata |
| 38 | Dorsal sepal with a filiform point 8 mm or more long | 39 |
| Dorsal sepal with a filiform point 3 mm long or less
Back to 35 | 41 |
| 39 | Labellum widest near the base and tapered to the apex, lateral sepals deeply concave, the labellum not visible from the side in the set position | Pterostylis boormanii |
| Labellum widest at or above the middle, lateral sepals flat to shallowly concave, the labellum visible from the side in the set position
Back to 38 | 40 |
| 40 | Margins of lateral sepals densely ciliate, free points of lateral sepals 5–6 mm long, curved forwards | Pterostylis cobarensis |
| Margins of lateral sepals glabrous or nearly so, free points of lateral sepals 7–20 mm long, deflexed or swept backwards
Back to 39 | Pterostylis chaetophora |
| 41 | Labellum obovate, 4.5–5 mm long | 42 |
| Labellum oblong, c. 4 mm long
Back to 38 | 43 |
| 42 | Labellum broad-obovate, marginal trichomes 3–5 pairs | Pterostylis saxicola |
| Labellum narrow-obovate, marginal trichomes 12–14 pairs
Back to 41 | Pterostylis praetermissa |
| 43 | Flowers nodding | Pterostylis rufa |
| Flowers more or less erect
Back to 41 | 44 |
| 44 | Outer third of lateral sepal margins folded inwards and nearly touching beneath the labellum | Pterostylis pusilla |
| Lateral sepals folded inwards at the very margins only
Back to 43 | 45 |
| 45 | Flowers c. 4 mm wide, green and light brown, dull, lateral sepals swept back | Pterostylis aciculiformis |
| Flowers c. 7 mm wide, reddish brown, shiny, lateral sepals deflexed
Back to 44 | Pterostylis squamata |
| 46 | Flower solitary (rarely 2) | 47 |
| Flowers 2 or more, rosette leaves attached to a growth arising laterally from the base of a scape [Speculantha]
Back to 1 | 98 |
| 47 | Rosette leaves borne by non-flowering and flowering individuals, though in the latter these may be more diffusely distributed up the base of the scape, dimorphism among flowering and non-flowering individuals therefore incomplete or absent. [Pterostylis] | 48 |
| Rosette leaves developed on non-flowering plants only, absent from flowering plants, dimorphism among flowering and non-flowering individuals therefore complete. [Diplodium]
Back to 46 | 74 |
| 48 | Rosette leaves petiolate, tightly grouped at the base of the scape | 50 |
| Rosette leaves sessile, grouped in a loose spiral in the basal third of the scape
Back to 47 | 65 |
| 50 | Labellum apex conspicuously notched | 51 |
| Labellum apex entire
Back to 48 | 54 |
| 51 | Labellum apex just visible, not protruding through the front of the sinus in the set position | Pterostylis concinna |
| Distal third of labellum protruding conspicuously through the sinus in the set position
Back to 50 | 52 |
| 52 | Flower 2–2.5 cm long | Pterostylis conoglossa |
| Flower 3–5 cm long
Back to 51 | 53 |
| 53 | Rosette leaves dull, flower semi-nodding, lobes of labellum notch nearly parallel | Pterostylis ophioglossa |
| Rosette leaves shiny, flower erect, lobes of labellum notch widely spreading
Back to 52 | Pterostylis collina |
| 54 | Labellum not protruding through the front of the sinus in the set position, either the tip just visible or the whole labellum enclosed and not visible | 55 |
| Distal quarter to third of the labellum protruding through the front of the sinus in the set position
Back to 50 | 59 |
| 55 | Sepals all with filiform points of similar length | Pterostylis pedoglossa |
| Dorsal sepal much shorter than the lateral sepals
Back to 54 | 56 |
| 56 | Lateral sepals tightly embracing the galea, no lateral gap visible | Pterostylis nana |
| Lateral sepals loosely embracing the galea, leaving a lateral gap
Back to 55 | 57 |
| 57 | Apex of galea horizontal or decurved, labellum ovate | Pterostylis pedunculata |
| Apex of galea obliquely erect, labellum ovate-oblong
Back to 56 | 58 |
| 58 | Flower 12–20 mm long | Pterostylis erecta |
| Flower 14–17 mm long
Back to 57 | Pterostylis oblonga |
| 59 | Apex of labellum acuminate | Pterostylis acuminata |
| Apex of labellum obtuse to subacute
Back to 54 | 60 |
| 60 | Flower conspicuously nodding | 61 |
| Flower erect to semi-erect, not conspicuously nodding
Back to 59 | 62 |
| 61 | Flower c. 2.5 cm long, labellum 12–16 mm long | Pterostylis nutans |
| Flower c. 1.5 cm long, labellum 9–13 mm long
Back to 60 | Pterostylis hispidula |
| 62 | Flowers 5–6 cm long, erect | Pterostylis baptistii |
| Flowers semi-erect, 2–3.5 cm long
Back to 60 | 63 |
| 63 | Labellum scabrid, distal half protruding from the sinus in the set position | Pterostylis x ingens |
| Labellum smooth, the tip to distal quarter protruding from the sinus in the set position
Back to 62 | 64 |
| 64 | Flower c. 3.5 cm long, labellum tip twisted prominently to one side | Pterostylis curta |
| Flower 2–2.5 cm long, labellum tip straight (not twisted)
Back to 63 | Pterostylis hildae |
| 65 | Labellum apex notched | 66 |
| Labellum apex entire
Back to 48 | 67 |
| 66 | Flower c. 3 cm long, green and white, stem leaves ovate | Pterostylis furcillata |
| Flower c. 3.5 cm long, heavily suffused with red, stem leaves lanceolate
Back to 65 | Pterostylis pulchella |
| 67 | Labellum blue-green, sometimes dark | Pterostylis oreophila |
| Labellum dark green to brownish, to blue-black, never blue-green
Back to 65 | 68 |
| 68 | Flower c. 2 cm long, lateral sepals tightly embracing the galea, no lateral gap visible | Pterostylis foliata |
| Flower 3 cm or more long, lateral sepals loosely embracing the galea leaving a lateral gap
Back to 67 | 69 |
| 69 | Flower with dark brown stripes and suffusions | Pterostylis riparia |
| Flower green and white
Back to 68 | 70 |
| 70 | Scape smooth | Pterostylis furcata |
| Scape scabrid
Back to 69 | 71 |
| 71 | Flower c. 3 cm long, sinus protruding prominently in an abrupt curve when viewed from the side, free points reflexed behind the galea | Pterostylis alpina |
| Flower 3–5 cm long, sinus protruding in a shallow curve when viewed from the side, free points erect above the galea
Back to 70 | 72 |
| 72 | Galea hood inclined upward | Pterostylis aneba |
| Galea hood more or less level.
Back to 71 | 73 |
| 73 | Sinus broadly and shallowly notched, flowers 40–50 mm long | Pterostylis monticola |
| Sinus deeply and narrowly notched, flowers 30–40 mm long
Back to 72 | Pterostylis subtilis |
| 74 | Dorsal sepal acute to acuminate, lacking a filiform point | 75 |
| Dorsal sepal with a distinct filiform apical point, at least 4 mm long
Back to 47 | 78 |
| 75 | Petal margins prominently flared, dark red-brown, distal half of labellum linear to filiform with a slightly expanded apex | 76 |
| Petal margins decurved, green to light brown, labellum tapered in distal half but not linear to filiform, apex acute to subacute
Back to 74 | 77 |
| 76 | Petals dark red-brown, distal half of labellum linear to filiform with a slightly expanded apex | Pterostylis grandiflora |
| Petals green, distal half of labellum broad, with an obtuse apex
Back to 75 | Pterostylis hians |
| 77 | Flower c. 2 cm long, lateral sepal points erect, labellum strongly curved | Pterostylis longicurva |
| Flower 4–5 cm long, lateral sepal points widely divergent, labellum shallowly curved
Back to 75 | Pterostylis truncata |
| 78 | Sinus V-shaped when viewed from the front | 79 |
| Sinus flat or raised, often with a small central notch when viewed from the front
Back to 74 | 83 |
| 79 | Labellum not protruding from the sinus in the set position, apex obtuse, truncate or slightly notched | Pterostylis fischii |
| Labellum protruding from the sinus in the set position, apex long-acuminate
Back to 78 | 80 |
| 80 | Flower erect | Pterostylis reflexa |
| Flower semi-erect to semi-nodding
Back to 79 | 81 |
| 81 | Flower 4.5–7 cm long, galea with a long sweeping shallow curve. labellum 18–24 mm long | Pterostylis ampliata |
| Flower 2–3 cm long, galea with a short curve, labellum 12–17 mm long
Back to 80 | 82 |
| 82 | Flower pale green and white | Pterostylis revoluta |
| Flower heavily suffused with light brown to dark brown
Back to 81 | Pterostylis longipetala |
| 83 | Sinus abruptly protruding and platform-like when viewed from the side | 84 |
| Sinus flat or shallowly mounded or curved when viewed from the side, never platform-like though in some species like P. decurva the sinus does have a protruding knee, the upper margin is not horizontal so does not appear platform like in lateral view.
Back to 78 | 91 |
| 84 | Distal third of labellum protruding from the sinus in the set position | 85 |
| Labellum tip barely visible through the sinus in the set position
Back to 83 | 86 |
| 85 | Flower bluish green and white, labellum 15–19 mm long | Pterostylis aestiva |
| Flower dark green and white, labellum 13–17 mm long
Back to 84 | Pterostylis metcalfei |
| 86 | Petal margins parallel with top of sinus knee, Sinus J- or U-shaped when viewed from side. Filiform tip to dorsal sepal shorter than petal length above the sinus. Flowers green and white, or if with brown pigments these suffuse and concentrated around the sinus, or on the tip of the galea only. | 87 |
| Petal margins inclined toward top of sinus knee, sinus C-shaped when viewed from side. Filiform tip to dorsal sepal longer than petal length above the sinus. Flowers liberally adorned with brown pigments on the galea, sometimes extending to include on surface of synsepalum, lateral sepal tips, and galea.
Back to 84 | 90 |
| 87 | Sepal tips slightly clavate | Pterostylis atrans |
| Sepal tips filiform
Back to 86 | 88 |
| 88 | Flower green and white with red-brown suffusions in the galea | Pterostylis torquata |
| Flower green and white only, labellum 9–11 mm long
Back to 87 | 89 |
| 89 | Flowers 2.5–2.8 cm long, sinus protruding, spout-like | Pterostylis obtusa |
| Flowers 1.8 cm long, sinus not so markedly protruding, sometimes with margins slightly inrolled
Back to 88 | Pterostylis alveata |
| 90 | Flower 2–2.5 cm long, green or with warm brown tints around the galea, labellum 11–13 mm long, rosette leaf margins entire | Pterostylis decurva |
| Flower 3.5–4 cm long, with intense and often sharply delineated red-brown pigmentation around the galea, labellum 15–17 mm long, rosette leaf margins minutely crenulate
Back to 86 | Pterostylis abrupta |
| 91 | Flower more than 3 cm long | 92 |
| Flower 1.5–2.5 cm long
Back to 83 | 93 |
| 92 | Sinus scabrid, labellum protruding prominently from the sinus in the set position | Pterostylis coccina |
| Sinus smooth, labellum tip just visible in the set position
Back to 91 | Pterostylis robusta |
| 93 | Labellum protruding prominently from the sinus in the set position | 94 |
| Labellum tip visible in the set position, but not protruding prominently
Back to 91 | 98 |
| 94 | Galea suffused with brown pigments | 95 |
| Galea not suffused with brown pigments [but P. elegans can have galea suffused with brown pigments, so this couplet construction is not ideal – see the recognition section of P. elegans]
Back to 93 | 96 |
| 95 | Flowers semi-nodding, labellum evenly curved throughout, lateral sepals free tips tending to curve outward and downward | Pterostylis laxa |
| Flower erect, labellum curved forwards suddenly in the distal third, lateral sepal free tips erect.
Back to 94 | Pterostylis decurva |
| 96 | Labellum longer than column, sinus knee angle less than right angle | Pterostylis metcalfei |
| Labellum shorter than column, sinus knee right angled.
Back to 94 | 97 |
| 97 | Dorsal sepal tip 5–8 mm long, labellum 8–11 mm long, flowers dark | Pterostylis elegans |
| Dorsal sepal tip 3–5 mm long, labellum 11–14 mm long, flowers bright
Back to 96 | Pterostylis russellii |
| 98 | Flowers strikingly marked with green, white and dark brown, colours clearly delineated, dark-brown particularly intense around the sinus; upper galea shallowly hooded and rather two dimensional, petals exposed to a width approximately equal that of the dorsal sepal at equivalent point along the galea hood, lower petal margin usually arched inward, following the shape of the dorsal sepal; dorsal sepal ending in a short point to 5 or 6 mm long, but sometimes shorter, pointing forward or downward | Pterostylis striata |
| Flowers marked with green, white, and light-brown, colours not clearly delineated, sinus green, petals green or light brown; upper galea deeply hooded, three dimensional, petals exposed to a width greater than that of the dorsal sepal, particularly near their apex, lower petal margin straight or curved outward, contrary to the shape of the dorsal sepal; dorsal sepal ending in a point 5 or 6 mm or longer, usually pointing downward
Back to 93 | Pterostylis divaricata |
| 99 | Galea glabrous, not scabrous. | 100 |
| Galea scabrous, bearing fine ornamentation
Back to | 101 |
| 100 | Flowers less than 7 mm long | Pterostylis parviflora |
| Flowers 10–13 mm long
Back to 99 | Pterostylis ventricosa |
| 101 | flowering from the new replacement tuber while it is still attached to the old tuber, and before the rosette has been developed by the old tuber | Pterostylis vernalis |
| Flowering from a mature tuber at the same time or after the rosette has been developed.
Back to 99 | 102 |
| 102 | Flowers up to 8mm long | Pterostylis uliginosa |
| Flowers around 10mm long
Back to 101 | 103 |
| 103 | Flowers red and white all over when fresh | Pterostylis amabilis |
| Flowers only coloured red/brown distally when fresh
Back to 102 | 104 |
| 104 | Flowers marked dark chocolate brown to black distally, not changing colour with age [coastal areas north of Minnie Water] | Pterostylis nigricans |
| Flowers marked reddish brown distally, ageing to a red or pinkish hue [inlands areas south of Peak Hill and Orange]
Back to 103 | Pterostylis rubescens |
