1	"Leaves ≥ 180 mm long"	2
1	"Leaves < 180 mm long"	7
2	"Fruit dry"	Salvia
2	"Fruit more or less fleshy"	3
3	"Corolla actinomorphic, not 2-lipped, 2–3 mm long; stamens 4, equal; fruit less than 4 mm diam., usually bright purple when ripe"	"Callicarpa: Callicarpa candicans"
3	"Corolla zygomorphic, more or less 2-lipped or one lobe much larger than other lobes, more than 4 mm long; stamens 4, more or less didynamous; fruit more than 4 mm diam., often black, bluish or red, sometimes purplish but then dull"	4
4	"Fruit black and usually surrounded by the conspicuously enlarged reddish calyx"	Clerodendrum
4	"Fruit blue to purple, pink to reddish or if black then leaves usually 3- or 5-foliolate; fruiting calyx unchanged, not reddish"	5
5	"Corolla usually 4-lobed, mostly straight; calyx truncate, without lobes or with small teeth; leaves simple"	Premna
5	"Corolla usually 5-lobed, often markedly curved; calyx 5-toothed or 5-cleft, rarely 3-cleft; leaves simple or mostly palmately compound with 3 or 5 leaflets"	6
6	"Leaves simple with two cup-like glands at the base"	"Gmelina: Gmelina australis"
6	"Leaves mostly palmately compound with 3 or 5 leaflets"	Vitex
7	"Style gynobasic, arising from the base of four clearly distinct locules; nutlets free when mature"	8
7	"Style not gynobasic, either terminal or arising from between 4 apical lobes of the ovary; nutlets partly or entirely fused at maturity"	22
8	"Upper tooth of calyx with an obcordate appendage"	Lavandula
8	"Teeth of calyx without appendages"	9
9	"Stamens held horizontally or in roof of corolla"	10
9	"Stamens projected down into lower lip of corolla"	19
10	"Fertile stamens 2"	Salvia
10	"Fertile stamens 4"	11
11	"Calyx distinctly 2-lipped"	"Prunella: Prunella vulgaris"
11	"Calyx 5- to 10-toothed"	12
12	"Calyx 8- to 10-toothed"	13
12	"Calyx 5-toothed"	14
13	"Corolla orange (the orange colour is produced by the dense orange hairs)"	Leonotis
13	"Corolla white"	"Marrubium: Marrubium vulgare"
14	"Corolla with 4 almost equal lobes, not 2-lipped"	15
14	"Corolla distinctly 2-lipped"	16
15	"Anthers all 2-celled"	Mentha
15	"Anthers all 1-celled"	"Pogostemon: Pogostemon stellatus"
16	"Upper lip of corolla more or less flat"	Anisomeles
16	"Upper lip of corolla distinctly hooded"	17
17	"Calyx longer than the corolla, at least 2 cm diameter"	"Moluccella: Moluccella laevis"
17	"Calyx shorter than corolla, less than 2 cm diameter"	18
18	"Lateral lobes of lower lip of corolla 0 or minute and linear"	"Lamium: Lamium amplexicaule"
18	"Lateral lobes of lower lip of corolla distinct and not linear"	"Stachys: Stachys arvensis"
19	Trees	"Mesosphaerum: Mesosphaerum suaveolens"
19	"Shrubs or undershrubs"	20
20	"Corolla lower lip concave to boat-shaped"	Coleus
20	"Corolla lower lip more or less flat"	21
21	"Filaments exserted; inflorescence symmetrical"	Ocimum
21	"Filaments not exserted; inflorescence secund"	"Basilicum: Basilicum polystachyon"
22	"Upper lip of corolla inconspicuous (much smaller than lower lip)"	Teucrium
22	"Upper lip of corolla conspicuous (comparable to size of lower lip)"	23
23	"Ovary apex undivided, the style terminal; stamens 4-8 (or 2 fertile and 2 staminodes in  some Hemiphora); indumentum usually of branched or stellate hairs or peltate scales, rarely plants glabrous"	24
23	"Ovary apex 4-lobed, the style arising between the lobes; stamens 4, or 2 fertile and 2 staminodes; indumentum of simple (rarely branched) hairs or plants glabrous"	35
24	"Flowers ±actinomorphic (sometimes one lobe slightly larger than others); corolla 4–10-lobed and not 2-lipped; stamens 4–10"	25
24	"Flowers zygomorphic, corolla 5-lobed and 2-lipped; stamens 4 or only 2 fertile"	29
25	"Flowers arranged in ±capitate clusters, with clusters solitary or in corymbose panicles; corolla with one lobe sometimes slightly larger than others; style shortly to deeply 2-lobed; stamens shortly exserted"	Dicrastylis
25	"Flowers arranged in dense or open spike-like inflorescences (if capitate, then corolla lobes narrowly ovate, with apex acute); corolla lobes always equal in size; style 2-lobed to very minutely 2-notched; stamens included or exserted"	26
26	"Spike-like inflorescences with one flower subtended by a bract (pherophyll); base of style covered by glandular trichomes"	Physopsis
26	"Spike-like inflorescences with more than one flower subtended by a bract (pherophyll); base of style glabrous or with non-glandular trichomes (glandular trichomes absent)"	27
27	"Apex of corolla lobes attenuate, with a conspicuously contorted (sometimes thickened) protrusion, and usually with an undulate margin"	Newcastelia
27	"Apex of corolla lobes usually truncate (when reduced) or obtuse, lacking a conspicuous and contorted protrusion, margin flat"	28
28	"Corolla lobes reduced (appearing absent), apex truncate; stamens exserted, positioned terminally on the distal portion of the truncated corolla tube; ovary usually with conspicuous sessile glands, at least on apex"	Lachnostachys
28	"Corolla lobes reduced or distinct, with apex acute or obtuse; stamens included or exserted, positioned variously; ovary never with conspicuous sessile glands"	Apatelantha
29	"Leaves with adaxial surface rugose-bullate, strongly directed upwards, decurrent (sometimes shortly so), margin strongly recurved"	30
29	"Leaves with adaxial surface smooth to rugose (never bullate), directed upwards, not decurrent, margin recurved"	31
30	"Leaves with most of adaxial surface closely appressed to axis of branches; lamina with adaxial surface bullate forming geometrically ordered segments that are usually regular and parallel to each other; stamens 4, all equally fertile; seeds not bent inside fruit; pollen 3-colpate"	"Chloanthes: Chloanthes coccinea"
30	"Leaves with only basal parts of adaxial surface appressed to axis of branches; lamina with adaxial surface bullate, segments somewhat irregular; stamens 4, or sometimes with abaxial pair reduced in fertility or sterile (staminodes); seeds with multiple bends inside fruit; pollen 6-colpate"	Hemiphora
31	"Mature branches and leaves lacking trichomes; fruiting-calyx distinctly enlarged (corolla-like in appearance), with apex toothed; staminal filaments dilated in distal third"	Cyanostegia
31	"Mature branches and leaves with branched, non-glandular trichomes, or trichomes fused together as scales; fruiting-calyx unchanged, with apex untoothed; staminal filaments uniformly wide throughout"	32
32	"Leaves and branches with stellate non-glandular trichomes; corolla widely spreading, with inner surface glabrous; stamens inserted at base of corolla tube; ovary glabrous; mericarps 4"	Brachysola
32	"Leaves and branches with irregularly branched dendritic non- glandular trichomes; corolla tubular, with inner surface hairy; stamens inserted near middle of corolla tube; ovary hairy; mericarps 2"	33
33	"Anthers with locules of abaxial pair mostly reduced in fertility and basal acumen usually distinctly developed, adaxial pair of anther locules lacking acumen or acumen obscure; fruit drupaceous, enclosed in persistent calyx, usually indehiscent, sometimes splitting into 2 bilocular mericarps"	Quoya
33	"Anthers all equally fertile, with basal acumen present or absent; fruit dry, not enclosed by calyx, dehiscent or indehiscent"	34
34	"Fruit dehiscent, always splitting into 2 bilocular mericarps, with lateral or distal hump absent"	Pityrodia
34	"Fruit indehiscent, extended to form a hump laterally or distally"	Dasymalla
35	"Fertile stamens 4"	36
35	"Fertile stamens 2"	38
36	"Anthers 2-celled"	Prostanthera
36	"Anthers 1-celled"	37
37	"Connective toothed or appendaged"	Hemiandra
37	"Connective of upper pair dilated and crested, lower pair attenuate and glabrous"	Hemigenia
38	"Anthers 2-celled"	Prostanthera
38	"Anthers 1-celled"	39
39	"Connective of fertile stamens elongated below insertion of filament into dilated branch with bearded tip"	Microcorys
39	"Connective of fertile stamens not or only shortly elongated below insertion of filament"	Westringia