1 "Plants perennial" 2 1 "Plants annual or biennial" 30 2 "Plants woody" 3 2 "Plants herbaceous" 10 3 "Capitula heterogamous, radiate or disciform" Ozothamnus 3 "Capitula homogamous, discoid" 4 4 "Leaf lamina flat (revolute or involute margins, if any) <10% of width" 5 4 "Leaf lamina not flat (trigonous in section or often appearing ± terete due to inrolled margins)" 9 5 "Capitula solitary or only few together" 6 5 "Capitula many in corymbs" 7 6 "Receptacle conical, involucral bracts cartilaginous" "Argyroglottis: Argyroglottis turbinata" 6 "Receptacle flat to convex, involucral bracts papery" Ozothamnus 7 "Paleae present; florets 3–15 per capitulum" Cassinia 7 "Paleae absent; florets more than 15 per capitulum" 8 8 "Subherbaceous perennials, with weakly woody stems dying back after flowering; inner involucral bracts with radiating tips" Pithocarpa 8 "Shrubs or small trees with permanent woody branches, or if subherbaceous perennials, inner involucral bracts lacking radiating tips" Ozothamnus 9 "Paleae present" Cassinia 9 "Paleae absent" Ozothamnus 10 "Capitula homogamous" 11 10 "Capitula heterogamous" 19 11 "Stereome divided" 12 11 "Stereome undivided" 15 12 "Involucral bracts brownish or hyaline" 13 12 "Involucral bracts white or coloured" 14 13 "Pappus of flattened bristles; achenes without reddish knob" "Leucophyta: Leucophyta brownii" 13 "Pappus of rudimentary bristles or scale; achenes with conspicuous reddish knobs" "Rutidosis: Rutidosis helichrysoides subsp. helichrysoides" 14 "Anther appendage narrower than thecae" Argentipallium 14 "Anther appendage as wide as thecae" "Leucochrysum: Leucochrysum stipitatum" 15 "Capitula solitary or a few together" 16 15 "Capitula many" 18 16 "Pappus bristles glabrous; heads compound" "Rhetinocarpha: Rhetinocarpha suffruticosa" 16 "Pappus bristles barbellate or plumose: heads simple" 17 17 "Pappus bristles barbellate" "Anemocarpa: Anemocarpa calcicola" 17 "Pappus bristles plumose" "Leucochrysum: Leucochrysum stipitatum" 18 "Capitula pedicellate" Craspedia 18 "Capitula sessile" "Pycnosorus: Pycnosorus pleiocephalus" 19 "Outer florets blue to purple" 20 19 "Outer florets yellow, white, or pale green" 23 20 "Sweeping hairs on style branches dorsally and apically" 21 20 "Sweeping hairs on style branches apically only or dorsally only" 22 21 "Distinct outer florets radiate or absent" "Rutidosis: Rutidosis helichrysoides subsp. helichrysoides" 21 "Distinct outer florets filiform" Euchiton 22 "Achene hairs short, clavate" Gnaphalium 22 "Achene hairs globose, elongated or absent" Gamochaeta 23 "Sweeping hairs on style branches apically and dorsally" 24 23 "Sweeping hairs on style branches only apically" 26 24 "Capitula many" Euchiton 24 "Capitula solitary or few" 25 25 "Involucral bracts white or coloured" Xerochrysum 25 "Involucral bracts brownish or hyaline" "Rutidosis: Rutidosis helichrysoides subsp. helichrysoides" 26 "Involucral bracts brownish or hyaline" 27 26 "Involucral bracts white or coloured" 28 27 "Achenes hispid; pappus deciduous" "Ixiolaena: Ixiolaena viscosa" 27 "Achenes glabrous; pappus persistent" Leiocarpa 28 "Distinct outer florets more numerous than central florets" Helichrysum 28 "Distinct outer florets fewer than central florets, or absent" 29 29 "Anther appendages flat; achenes oblong" Argentipallium 29 "Anther appendages concave; achenes ellipsoidal to turbinate" Chrysocephalum 30 "Capitula homogamous" 31 30 "Capitula heterogamous" 83 31 "Achenes ellipsoid or turbinate or long and rod-like" 32 31 "Achenes oblong or obovoid" 46 32 "Achenes long and rod-like" "Chondropyxis: Chondropyxis halophila" 32 "Achenes ellipsoid or turbinate" 33 33 "Involucral bracts in one whorl" Millotia 33 "Involucral bracts in more than one whorl" 34 34 "Involucral bracts with a distinct claw" 35 34 "Involucral bracts without a claw" 38 35 "Central florets functionally male" Schoenia 35 "Central florets bisexual" 36 36 "Achene unbeaked" "Leucochrysum: Leucochrysum stipitatum" 36 "Achene beaked" 37 37 "Innermost involucral bracts with linear claws longer than the small, hyaline, white or coloured laminae" Waitzia 37 "Innermost involucral bracts with flattened claws shorter than the large, broad, flat, yellow laminae" Haptotrichion 38 "Involucral bracts herbaceous" 39 38 "Involucral bracts papery or cartilaginous" 40 39 "Receptacle epaleate" Podotheca 39 "Receptacle paleate" "Neotysonia: Neotysonia phyllostegia" 40 "Involucral bracts cartilaginous" 41 40 "Involucral bracts papery" 42 41 "Pappus bristles capillary" "Taplinia: Taplinia saxatilis" 41 "Pappus bristles few, scale-like" "Quinetia: Quinetia urvillei" 42 "Achene longer than or equalling corolla" 43 42 "Achene shorter than corolla" 45 43 "Receptacle conical" "Bellida: Bellida graminea" 43 "Receptacle flat or convex" 44 44 "Receptacle paleate" "Neotysonia: Neotysonia phyllostegia" 44 "Receptacle epaleate" "Quinqueremulus: Quinqueremulus linearis" 45 "Stereome divided: receptacle conical" "Rutidosis: Rutidosis helichrysoides subsp. helichrysoides" 45 "Stereome undivided; receptacle flat" "Gilberta: Gilberta tenuifolia" 46 "Achene of central floret oblong" "Vellereophyton: Vellereophyton dealbatum" 46 "Achene of central floret obovoid" 47 47 "Involucral bracts brownish hyaline or clear hyaline" 48 47 "Involucral bracts white or coloured" 69 48 "Receptacle paleate" 49 48 "Receptacle epaleate" 53 49 "Receptacle flat or convex" 50 49 "Receptacle conical or peg-like" 52 50 "Involucral bracts cartilaginous; pappus of connate scales" Trichanthodium 50 "Involucral bracts cartilaginous; pappus of scales absent" 51 51 "Capitula surrounded by whorl of leaves" Chthonocephalus 51 "Capitula not surrounded by whorl of leaves" "Decazesia: Decazesia hecatocephala" 52 "Receptacle conical" Siloxerus 52 "Receptacle peg-like" Craspedia 53 "Achenes hairy" 54 53 "Achenes glabrous" 64 54 "Achenes densely villous" 55 54 "Achenes not densely villous" 58 55 "Receptacle peg-like" "Fitzwillia: Fitzwillia axilliflora" 55 "Receptacle conical" 56 56 "Leaf glands distinct" "Polycalymma: Polycalymma stuartii" 56 "Leaf glands absent" 57 57 "Pappus of basally connate subplumose to plumose bristles" "Feldstonia: Feldstonia nitens" 57 "Pappus of basally connate short flattened bristles" Dithyrostegia 58 "Receptacle flat or convex" 59 58 "Receptacle conical or peg-like" 61 59 "Involucral bracts cartilaginous" Trichanthodium 59 "Involucral bracts papery" 60 60 "Leaf glands distinct" "Eriochlamys: Eriochlamys eremaea" 60 "Leaf glands absent" Pogonolepis 61 "Receptacle peg-like" Blennospora 61 "Receptacle conical" 62 62 "Leaf glands absent: pappus plumose, at least apically" Actinobole 62 "Leaf glands distinct; pappus bristles scabrid or barbellate" 63 63 "Capitula surrounded by whorl of leaves" Myriocephalus 63 "Capitula not surrounded by whorl of leaves" Gnephosis 64 "Involucral bracts cartilagineous" 65 64 "Involucral bracts papery" 66 65 "Involucral bracts in several whorls" "Dielitzia: Dielitzia tysonii" 65 "Involucral bracts in 1 whorl" Sondottia 66 "Leaves glabrous" "Lemooria: Lemooria burkittii" 66 "Leaves tomentose" 67 67 "Leaf glands distinct; receptacle conical" "Hyalochlamys: Hyalochlamys globifera" 67 "Leaf glands absent; receptacle flat or convex" 68 68 "Pappus basally connate as a jagged scale-like cup" "Cephalosorus: Cephalosorus carpesioides" 68 "Pappus absent" "Epitriche: Epitriche demissus" 69 "Involucral bracts herbaceous" Podotheca 69 "Involucral bracts papery" 70 70 "Inner involucral bracts conspicuously longer than outer bracts" 71 70 "Inner involucral bracts not conspicuously longer than outer bracts" 78 71 "Pappus absent" Pithocarpa 71 "Pappus present" 72 72 "Pappus scabrid or barbellate" 73 72 "Pappus plumose at least apically" 76 73 "Leaves alternate" 74 73 "Leaves opposite, at least basally" 75 74 "Leaves filiform" Erymophyllum 74 "Leaves linear or elliptic to ovate" Pithocarpa 75 "Achenes of outer florets dorsiventrally compressed, not basally excavated; 2 vascular bundles medial to cotyledons; anther appendage cordate; pappus colourless or yellow" Schoenia 75 "Achenes of outer florets not dorsiventrally compressed, basally excavated; 2 vascular bundles lateral to cotyledons; anther appendage broadly ovate; pappus colourless or pink" Lawrencella 76 "Receptacle flat or convex; pappus bristles free or cohering by patent cilia" "Cephalipterum: Cephalipterum drummondii" 76 "Receptacle conical; pappus bristles connate in a ring" 77 77 "Achenes densely villose with elongated twin hairs" Rhodanthe 77 "Achenes not villous, but with sessile globose hairs" Hyalosperma 78 "Pappus absent" "Thiseltonia: Thiseltonia gracillima" 78 "Pappus present" 79 79 "Pappus of jagged scales" "Cephalosorus: Cephalosorus carpesioides" 79 "Pappus of flattened plumose bristles" 80 80 "Achenes glabrous" "Gilruthia: Gilruthia osbornii" 80 "Achenes hairy" 81 81 "Receptacle paleate" "Pycnosorus: Pycnosorus pleiocephalus" 81 "Receptacle epaleate" 82 82 "Involucral bracts usually 4; 2 concave outer bracts & (0–) 2 inner flat bracts" Angianthus 82 "Involucral bracts 7–c. 22, flat to concave" Calocephalus 83 "Central floret achene obovoid" 84 83 "Central floret achene ellipsoid, turbinate or oblong" 86 84 "Capitula in glomerules or spikes" "Tietkensia: Tietkensia corrickiae" 84 "Capitula solitary or few together" 85 85 "Inner bracts opaque, conspicuously longer than outer bracts" Lawrencella 85 "Inner bracts hyaline; not conspicuously longer than outer bracts" "Haegiela: Haegiela tatei" 86 "Central floret achene ellipsoid or turbinate" 87 86 "Central floret achene oblong" 95 87 "Outer florets radiate" 88 87 "Outer florets filiform or tubular, or corolla absent" 89 88 "Involucral bracts filiform-subulate, densely plumose" Asteridea 88 "Involucral bracts flat, mainly broad-ovate (inner ones with claws concealed by outer bracts), glabrous to long-ciliate only on margins" Podolepis 89 "Leaf glands distinct" 90 89 "Leaf glands absent" 91 90 "Involucral bracts brownish or hyaline" Asteridea 90 "Involucral bracts white or coloured" Chrysocephalum 91 "Capitula surrounded by a whorl of leaves" 92 91 "Capitula not surrounded by a whorl of leaves" 94 92 "Involucral bracts opaque white" "Pterochaeta: Pterochaeta paniculata" 92 "Involucral bracts brownish or hyaline" 93 93 "Receptacle conical" "Triptilodiscus: Triptilodiscus pygmaeus" 93 "Receptacle flat or convex" Euchiton 94 "Leaves opposite, at least basally" "Haegiela: Haegiela tatei" 94 "Leaves all alternate" Leptorhynchos 95 "Stereome divided" "Vellereophyton: Vellereophyton dealbatum" 95 "Stereome undivided" 96 96 "Receptacle flat or convex" 97 96 "Receptacle conical" 99 97 "Pappus bristles connate in a ring" Gamochaeta 97 "Pappus bristles free or cohering by patent cilia" 98 98 "Style branches truncate" Gnaphalium 98 "Style branches obtuse" Euchiton 99 "Inner involucral bracts folded around florets" "Logfia: Logfia gallica" 99 "Inner involucral bracts not enclosing florets" "Stuartina: Stuartina muelleri"