1	"Leaves (or leaflets) on mature plants entire (or rarely absent)"	2
1	"Leaves (or leaflets) on mature plants toothed or lobed"	18
2	"Leaves compound"	3
2	"Leaves simple"	4
3	"Leaves bipinnate or pinnate, with 5 or more leaflets"	Petraeovitex
3	"Leaves palmate or trifoliolate, leaflets 3-5"	Vitex
4	"Leaves in whorls of 3 or 4 at some or all nodes"	5
4	"Leaves opposite at all nodes or leaves absent"	8
5	"Inflorescence a dense terminal spike"	Pogostemon
5	"Inflorescence axillary, flowers pedicellate"	6
6	"Upper stamens with connective not or only very shortly elongated, not dilated or bearded"	Westringia
6	"Upper stamens with connective elongated, dilated and bearded at the end"	7
7	"Leaves 4-10 times longer than wide"	Hemigenia
7	"Leaves 10-20 times longer than wide"	Microcorys
8	"Calyx lobes 2"	9
8	"Calyx campanulate without lobes, or lobes 5"	10
9	"Leaves 15-30 cm long; corolla 40-50 mm long; rainforest vine"	Faradaya
9	"Leaves up to 4 cm long; corolla 10-25 mm long; non-rainforest shrubs"	Prostanthera
10	"Leaves absent or up to 1.1 cm wide"	11
10	"Leaves 1.7-20 cm wide"	12
11	"Pedicels at anthesis 0-14 mm long"	Teucrium
11	"Pedicels at anthesis 14-36 mm"	Clerodendrum
12	"Corolla 9-20 mm long"	13
12	"Corolla 4-9 mm long"	16
13	"Stamens not projecting beyond corolla"	Gmelina
13	"Stamens prominently exserted from corolla"	14
14	"Pedicels at anthesis 0.8-2 mm long; fruits capsular, dehiscent"	Glossocarya
14	"Pedicels at anthesis 4-7 mm long; fruits indehiscent"	15
15	"Leaves without domatia; fruits 4-lobed, black"	Clerodendrum
15	"Leaves with prominent domatia; fruits globular, red at maturity"	Vitex
16	"Leaves 20-40 cm long; fruits surrounded by bladder-like calyx"	Tectona
16	"Leaves 3-20 cm long; calyx small, not exceeding fruit"	17
17	"Lower leaf surface white, very densely hairy; calyx lobes 0.5-1 mm long"	Vitex
17	"Lower leaf surface green, glabrous or sparsely hairy; calyx lobes 0-0.5 mm long"	Premna
18	"Leaf and/or branchlet indumentum stellate or dendritic"	19
18	"Leaves and branchlets with simple, unbranched hairs"	24
19	"Leaves sessile"	20
19	"Leaves with a distinct petiole"	22
20	"Leaves decurrent on stem"	Chloanthes
20	"Leaves not decurrent on stem"	21
21	"Flowers in ±capitate clusters, heads solitary or in corymbose panicles; style shortly to deeply 2-lobed"	Dicrastylis
21	"Flowers arranged in dense or open spikes; style entire or very minutely notched distally (not lobed)"	Newcastelia
22	"Largest leaves 0.3-0.8 cm long"	Teucrium
22	"Largest leaves 5-20 cm long"	23
23	"Leaves 5-8 times longer than broad, upper surface bullate; inflorescence tightly clustered in leaf axil"	Pityrodia
23	"Leaves 1.5-3.3 times longer than broad, upper surface not bullate; inflorescence open, distinctly pedunculate"	Callicarpa
24	"Inflorescence terminal, with the bracts much smaller than cauline leaves"	25
24	"Inflorescences in the axils of full-sized leaves"	42
25	"Leaves in whorls of three at some or all nodes"	Rotheca
25	"Leaves opposite at all nodes"	26
26	"Inflorescence paniculate; largest leaves 5-12 cm wide"	27
26	"Inflorescence spicate or racemose; largest leaves up to 6 cm wide"	28
27	"Corolla 20-25 mm long; leaf teeth 2-3 per side"	Clerodendrum
27	"Corolla 4-6 mm long; leaf teeth >10 per side"	Premna
28	"Corolla with a long basal spur"	Platostoma
28	"Corolla without a basal spur"	29
29	"Calyx comprising 2 obtuse “lips”"	Prostanthera
29	"Calyx with at least two acute teeth"	30
30	"Inflorescence a dense spike, rachis not visible"	Prunella
30	"Inflorescence an elongated (sometimes branched) raceme, rachis readily visible"	31
31	"Calyx comprising a broadly elliptical to circular (upper) lobe/lip, plus 3-5 acute teeth below it; flowers borne in whorls"	32
31	"Calyx with acute teeth only (no broad lip present); flowers usually not borne in whorls"	36
32	"Stamens 40-60 mm long, far longer than corolla; fruiting calyx 10-13 mm long"	Orthosiphon
32	"Stamens 2-15 mm long, included within or slightly longer than corolla; fruiting calyx 2-8 mm long"	33
33	"Fruiting calyx 2-3 mm long"	Basilicum
33	"Fruiting calyx 3-8 mm long"	34
34	"Leaves thin, not fleshy; upper calyx lobe 2.8-5.2 mm wide at fruiting stage"	Ocimum
34	"Leaves thick, fleshy; upper calyx lobe 0.8-3 mm wide at fruiting stage"	35
35	"Calyx with pedicel attached asymmetrically to the base of the calyx tube, opposite the posterior lip; corolla with upper (posterior) lip shorter than lower (anterior)"	Coleus
35	"Calyx with pedicel attached symmetrically to the base of the calyx tube, not op¬posite the upper lip, corolla lobes more or less equal in length"	Plectranthus
36	"Calyx teeth unequal, 2-4 (rarely 5)"	Salvia
36	"Calyx teeth more-or-less equal, always 5"	37
37	"Leaves in basal rosette; bracts 15-60 mm long"	Ajuga
37	"Leaves in pairs along stem; bracts 3-15(-20) mm long"	38
38	"Flowers solitary at each node of inflorescence"	Teucrium
38	"Flowers 3-many at each node of inflorescence"	39
39	"Fruiting calyx (including lobes) 1-2 mm long; upper and lower corolla lobes of similar length"	Mentha
39	"Fruiting calyx (including lobes) 3-12 mm long; upper corolla lobe much shorter than lower"	40
40	"Inflorescence unbranched, fasciculate (all flowers/fruits arising from axil of bract)"	Stachys
40	"Inflorescence branched (a monochasial or dichasial cyme)"	41
41	"Calyx lobes linear, fruiting calyces (incl. lobes) 3-4 mm long; staminal filaments glabrous"	Mesosphaerum
41	"Calyx lobes deltate; fruiting calyces (incl. lobes) 5.8-12 mm long; staminal filaments hairy"	Anisomeles
42	"Inflorescence a globose head, comprising more than 20 flowers"	43
42	"Flowers in clusters of <20, not forming globose heads"	46
43	"Heads on a long peduncle; calyx lobes 5"	Hyptis
43	"Heads sessile in leaf axils; calyx lobes 8-10"	44
44	"Corolla orange; inflorescences 45-70 mm diameter; calyx lobes pungent"	Leonotis
44	"Corolla white; inflorescences 14-30 mm diameter; calyx lobes not pungent"	45
45	"Stems densely woolly; calyx lobes uncinate"	Marrubium
45	"Stems sparsely hairy, hairs not woolly; calyx lobes straight"	Leucas
46	"Calyx without teeth, or teeth minute"	47
46	"Calyx teeth well developed"	50
47	"Calyx comprising two opposing lips/lobes"	48
47	"Calyx comprising a single saucer-shaped or bowl-shaped structure"	49
48	"Upper calyx lobe with a concave dish-like appendage"	Scutellaria
48	"Upper calyx lobe convex, without any appendage"	Prostanthera
49	"Calyx orange to red; pedicels hairy; bracts innocuous"	Holmskioldia
49	"Calyx green; pedicels glabrous; bracts rigid, somewhat spiny"	Moluccella
50	"Calyx teeth 10"	Leucas
50	"Calyx teeth 5"	51
51	"Flowers not clustered at leaf axils; pedicels and/or peduncles > 1mm"	52
51	"Flowers clustered at leaf axils; pedicels and peduncles < 1mm"	55
52	"Fruiting calyx 10-13 mm long; calyx teeth linear"	Mesosphaerum
52	"Fruiting calyx 2-6.5 mm long; calyx teeth triangular"	53
53	"Calyx tube with 14-16 closely spaced ribs; leaves highly aromatic"	Mentha
53	"Calyx tube with 5 or 10 widely spaced ribs; leaves not or weakly aromatic"	54
54	"Fruits conical to campanulate; corolla conspicuous, strongly zygomorphic"	Teucrium
54	"Fruits urceolate; corolla inconspicuous, lobes all about same length"	Cymaria
55	"Corolla white; leaves subtending flowers 65-130 mm long, margins acutely serrate"	Lycopus
55	"Corolla pink to purple; leaves subtending flowers 15-60 mm long, margins crenate to bluntly serrate"	56
56	"Leaves subtending flowers amplexicaul, the two leaves together encircling stem; distal end of corolla with dense tuft of hairs"	Lamium
56	"Leaves subtending flowers not amplexicaul; corolla more or less evenly hairy throughout"	57
57	"Leaves subtending flowers with 8-10 pairs of regularly spaced teeth; calyx lobes with a slender acumen 0.4-0.7 mm long"	Stachys
57	"Leaves subtending flowers with 2-5 pairs of irregularly spaced teeth; calyx lobes lacking an acumen"	Ajuga