1	"Fertile stamens >twice as many as sepals (MALVACEAE)."	2
1	"Fertile stamens up to twice as many as sepals (STERCULIACEAE)."	20
2	"Epicalyx present (falling early in Lagunaria)."	3
2	"Epicalyx absent."	14
3	"Epicalyx segments 3."	4
3	"Epicalyx segments 5 or more."	9
4	"Fruit a capsule; shrubs or trees."	5
4	"Fruit a schizocarp (sometimes appearing circumsciss); herbs (stout and erect in Lavatera)."	6
5	"Trees or tall shrubs; leaves covered with peltate scales, lacking oil glands; seeds glabrous; capsule covered with fine spicules."	Lagunaria
5	"Shrubs; leaves more or less glabrous, containing oil glands; seeds usually hairy; capsule without spicules."	Gossypium
6	"Flowers pink, white or bluish lilac; styles stigmatose longitudinally."	7
6	"Flowers yellow, orange or red; styles capitate."	8
7	"Epicalyx segments united for most of their length, margins crenate to toothed."	Lavatera
7	"Epicalyx segments free or united at the base, margins entire."	Malva
8	"Flowers solitary, pedunculate, orange to red; creeping herbs rooting at nodes."	Modiola
8	"Flowers more or less sessile in spikes or racemes; orange to yellow; erect herbs."	Malvastrum
9	"Fruit a schizocarp."	10
9	"Fruit a capsule."	12
10	"Mericarps uniformly covered with spines; shrubs to 3 m high."	Urena
10	"Mericarps lacking spines; small shrubs or erect annuals to 3 m high."	11
11	"Epicalyx segments more than 5, united at base; petals c. 4 cm long, pale pink, white or purple; erect herbs to 3 m high."	Alcea
11	"Epicalyx segments 5, free; petals c. 1 cm long, reddish purple; spreading shrubs to 1.5 m high."	Pavonia
12	"Calyx spathe-like, splitting on one side at anthesis and falling with corolla after flowering."	Abelmoschus
12	"Calyx neither spathe-like nor splitting as above, usually persistent after flowering."	13
13	"Styles undivided to stigmas; calyx and epicalyx segments dilated at apex; capsule appearing 10-valved at maturity with septicidal dehiscence."	Radyera
13	"Styles branched to well below stigmas; calyx and epicalyx not dilated at apex; capsule loculicidally 5-valved."	Hibiscus
14	"Flowers pink, blue or purple."	15
14	"Flowers yellow, orange, cream, greenish cream to white or red."	17
15	"Fruit a schizocarp with 11–15 mericarps; leaves 3–5-lobed."	Anoda
15	"Fruit a capsule, usually 3–5-valved; leaves not lobed."	16
16	"Capsule less than 1 cm long; petals c. 1 cm long, purple; leaves stellate-hairy."	Howittia
16	"Capsule 2–3 cm long; petals 3–4 cm long, usually pink, sometimes mauve; leaves covered with peltate scales."	Lagunaria
17	"Styles stigmatose for at least a third of their length; at least some flowers unisexual, flowers white to green or red, rarely yellow and then flowers always unisexual."	18
17	"Styles capitate; all flowers bisexual, yellow or orange."	19
18	"Tall shrubs to 3 m; flowers white to cream, more or less sessile or pedicellate in axillary panicles; eastern parts of the State."	Gynatrix
18	"Erect perennial herbs to 60 cm or spreading shrubs to 1 m; flowers green to white, yellow or red, 1–3 more or less sessile in axils, often forming leafy spikes; western parts of the State."	Lawrencia
19	"Ovules more than 2 in each loculus; mericarps papery, 2-valved, with a narrow back and smooth papery sides."	Abutilon
19	"Ovules solitary in each loculus; mericarps hard, often indehiscent, with a wide back and honeycombed or reticulate sides."	Sida
20	"Trees or shrubs more than 4 m high."	21
20	"Shrubs less than 4 m high (mostly less than 2 m high) or rarely herbs."	25
21	"Leaves palmately 3–9-lobed; fruit a samara."	Argyrodendron
21	"Leaves simple, margins entire to toothed, or lobed; fruit a capsule or follicle."	22
22	"Leaves with petiole more than 20 mm long; margins not toothed; lamina either 3–7-lobed, or unlobed and glabrous or sparsely hairy on lower surface; fruit a follicle, more than 30 mm long."	23
22	"Leaves with petiole less than 20 mm long; margins mostly irregularly toothed and lamina densely hairy on lower surface, mostly unlobed, sometimes obscurely lobed in juvenile shoots; fruit a bristly capsule less than 20 mm long."	24
23	"Leaves either 3–7-lobed, or entire and glabrous below; follicles stalked, hairy and yellowish brown inside, after opening seeds embedded along base."	Brachychiton
23	"Leaves entire and very sparsely stellate-pubescent on lower surface (lens needed); follicles sessile, glabrous and orange inside, after opening seeds attached along upper margins."	Sterculia
24	"Capsules 15–20 mm diam., bristly, bristles covered with soft stellate hairs, carpels not separating in fruiting stage."	Commersonia
24	"Capsules c. 10 mm diam., tomentose but without bristles, carpels separating in fruit."	Seringia
25	"Herbs; stems prostrate to 30 cm long; hairs glandular and stellate."	Gilesia
25	"Shrubs; stems mostly erect, sometimes prostrate; hairs stellate but not glandular."	26
26	"Epicalyx of 3 persistent subulate bracteoles; petals yellow, c. 10 mm long."	Melhania
26	"Epicalyx absent; petals not yellow, less than 10 mm long."	27
27	"Calyx enlarged in fruit, papery, blue to purplish or white, sparsely or densely pubescent."	Keraudrenia
27	"Calyx not markedly enlarged in fruit, whitish green to pink to rusty-coloured, tomentose at least on the outside."	28
28	"Capsules covered with bristles 2–5 mm long; calyx not prominent in fruit, not enclosing and shorter than the capsule."	Commersonia
28	"Capsules without bristles; calyx prominent in fruit, longer than and mostly enclosing the capsule."	29
29	"Calyx lobes 10–15 mm long, linear-subulate, striate; capsule c. 10 mm diam.; peduncle with 1 or 2 fruits."	Hannafordia
29	"Calyx lobes usually less than 10 mm long, more or less ovate, rarely oblong; capsule usually less than 5 mm diam.; peduncle mostly with many fruits, rarely 1 or 2"	Lasiopetalum