1	"Inflorescence arising from leaf-axil or terminal; fruit neither dumb-bell-shaped, nor subglobular with a broad, flattened terminal beak"	2
1	"Inflorescence arising opposite a leaf; fruit dumb-bell-shaped, or subglobular with a broad, flattened terminal beak"	55
2	"Fruit with 1–2 fertile seeds"	3
2	"Fruit with 3 or more fertile seeds"	11
3	"Fruit with 2 seeds arranged side by side"	4
3	"Fruit with 1 seed, or 2 with one above the other"	7
4	"Fruit indehiscent"	5
4	"Fruit dehiscent by valves"	6
5	"Fruit heart-shaped; hairs simple"	Lepidium
5	"Fruit globular; hairs stellate"	"Neslia {Neslia paniculata}"
6	"Plants glabrous or with simple hairs; septum across narrowest diam. of fruit"	Lepidium
6	"Plants with medifixed hairs; septum across broadest diam. of fruit"	"Lobularia {Lobularia maritima}"
7	"Leaves with stellate hairs; fruit globular"	"Neslia {Neslia paniculata}"
7	"Leaves glabrous or with simple hairs; whole fruit not globose"	8
8	"Leaves thick and succulent; fruit with enlarged, conical upper segment; sandy coasts"	Cakile
8	"Leaves not succulent; fruit variously shaped"	9
9	"Fruit club-shaped with rounded ?shoulders"	"Myagrum {Myagrum perfoliatum}"
9	"Fruit more or less cylindric"	10
10	"Fruit erect to spreading, 2–9 cm long, more or less cylindric with constrictions between seeds"	Raphanus
10	"Fruit more or less appressed to stem, less than 2 cm long, consisting of a ribbed swollen upper section and smaller lower section"	"Rapistrum {Rapistrum rugosum}"
11	"Fruit at maturity with valves not separating from middle wall, but instead breaking into 1–2-seeded segments, or if remaining entire, then fruit cylindric, more than 5 mm in diam. and with 1 row of seeds per locule"	12
11	"Fruit at maturity with valves separating from the middle wall to release seed"	13
12	"Fruit breaking into 2-seeded segments"	"Chorispora {Chorispora tenella}"
12	"Fruit breaking into 1-seeded segments or remaining entire"	Raphanus
13	"Fruit more than 3 times as long as broad"	14
13	"Fruit less than 3 times as long as broad"	43
14	"Fruit stalks curving down and burying the fruits; petals no longer than sepals"	"Geococcus {Geococcus pusillus}"
14	"Fruits ripening in air, sessile or on erect or spreading pedicels"	15
15	"Fruit terminated in 2 lateral horns; plant covered in stellate hairs"	Matthiola
15	"Fruit with single terminal 'beak' or without any such extension; hairs various"	16
16	"All leaves without lobes and with margins entire"	17
16	"At least lower leaves lobed, divided or with toothed or scalloped margins"	19
17	"Petals bifid; stem leaves absent; leaves with at least some branched hairs"	"Erophila {Erophila verna}"
17	"Petals entire; stem leaves present; leaves with simple or branched hairs"	18
18	"At least upper leaves clasping stem; seeds in 1 row per locule; leaves with thin translucent margin"	"Conringia {Conringia orientalis}"
18	"Leaves never clasping stem; seeds in 2 rows per locule"	Diplotaxis
19	"Shrub (rarely herbs) with glabrous or papillose (rarely stellate-hairy) stems; leaves 2–3 times divided into linear segments; north-west of State"	20
19	"Herb, glabrous or hairy; leaves various"	21
20	"Shrub; petals longer than sepals"	Arabidella
20	"Annual or biennial herb; petals ± equal to sepals"	"Descurainia {Descurainia sophia}"
21	"Petals white, pink or purple (sometimes blotched with other colours)"	22
21	"Petals yellow (sometimes fading to white)"	33
22	"Fruit terminated by sabre-like extension 5–10 mm long"	"Eruca {Eruca sativa}"
22	"Fruit terminated by linear style"	23
23	"Plants with at least some branched hairs"	24
23	"Plants with simple hairs or glabrous"	30
24	"Fruit linear"	25
24	"Fruit fusiform, obovoid or ellipsoid"	28
25	"Fruit quadrangular, usually more than 30 mm long, pubescent"	"Malcolmia {Malcolmia africana}"
25	"Fruit less than 30 mm long"	26
26	"Stem hairy; fruit hairy or glabrous 8–15 mm long;  north-central and western Victoria"	"Pachymitus {Pachymitus cardaminoides}"
26	"Stem glabrous (young stems sometimes hairy); fruit glabrous, 10–25 mm long; eastern Victoria and Melbourne region"	27
27	"Sepals 2–3 mm long; valves with midvein not extending to apex; seeds more than 1 mm long"	"Irenepharsus {Irenepharsus magicus}"
27	"Sepals usually 1–2 mm long; valves with prominent midvein to apex; seeds c. 0.5 mm long"	"Arabidopsis {Arabidopsis thaliana}"
28	"Fruit densely hairy"	Harmsiodoxa
28	"Fruit glabrous"	29
29	"Fruits 3–5 mm long, with 2–6 seeds per locule; petals less than 3 mm long"	"Ballantinia {Ballantinia antipoda}"
29	"Fruits 5–10 mm long, with numerous seeds; petals more than 3 mm long"	"Drabastrum {Drabastrum alpestre}"
30	"Basal leaves simple, long-petiolate, reniform or cordate"	"Alliaria {Alliaria petiolata}"
30	"Basal leaves not as above"	31
31	"Fruit flattened, linear; leaves often with clearly stalked lateral lobes"	Cardamine
31	"Fruit not flattened, ellipsoid to linear"	32
32	"Plants with a taproot, terrestrial (sometimes in wet or swampy areas)"	Rorippa
32	"Plants with stolons, aquatic to semi-aquatic"	Nasturtium
33	"Fruit with a 'beak' (a sterile, tapered or dilated terminal segment distinct from the body of the fruit and at least 2.5 mm long) or with a similar, fertile terminal segment"	34
33	"Fruit with a persistent style (a more or less linear segment less than 3.5 mm long and 1 mm wide) or without a terminal extension"	38
34	"Seeds in 2 rows per locule"	35
34	"Seeds in 1 row per locule"	36
35	"Beak conical, c. 2 mm long"	Diplotaxis
35	"Beak sabre-like, 5–10 mm long"	"Eruca {Eruca sativa}"
36	"Fruit valves with 1 prominent vein, terminal segment tapering"	Brassica
36	"Fruit valves with 3 or more prominent veins (at least when young), terminal segment flattened, swollen or tapering"	37
37	"Fruit appressed to stem, pedicels 2–5 mm long"	"Hirschfeldia {Hirschfeldia incana}"
37	"Fruit spreading, pedicels 3–25 mm long"	Sinapis
38	"Plants with branched hairs, at least on lower parts of plant"	39
38	"Plants with only simple hairs or glabrous"	40
39	"Hairs appressed, medifixed or stellate; fruit pedicels spreading"	"Erysimum {Erysimum repandum}"
39	"Hairs not appressed, simple and branched; fruit pedicels appressed"	"Turritis {Turritis glabra}"
40	"Leaves linear or 2–3 times divided with more or less linear segments; inflorescence dense (elongating in fruit); far north-west"	Arabidella
40	"Leaves or leaf-lobes not linear; inflorescence elongate"	41
41	"Fruit valves without distinct venation or with weak midvein fading below apex; fruits ellipsoid to linear"	Rorippa
41	"Fruit valves with conspicuous midvein reaching to apex; fruit narrow-lanceolate to linear"	42
42	"Fruit valves with weak reticulate lateral veins; plants almost always glabrous (if hairy, seed winged)"	Barbarea
42	"Fruit valves with 2 weaker lateral veins; plants usually hairy"	Sisymbrium
43	"Septum of fruit absent or reduced to a narrow rim; fruit obovoid to elliptic, either flattened or slightly compressed"	Menkea
43	"Septum present; fruit variously shaped"	44
44	"Petals drawn out into a long fine point; fruit oblong, obovoid or globose"	Stenopetalum
44	"Petals blunt, rounded or notched at apex; fruit variously shaped"	45
45	"Petals deeply notched at apex; stem leaves absent; fruit elliptic to circular"	"Erophila {Erophila verna}"
45	"Petals entire or slightly notched; stem leaves present; fruit variously shaped"	46
46	"Fruit more or less terete"	47
46	"Fruit flattened or compressed (only slightly so in Ballantinia)"	48
47	"Fruit inverted pear-shaped; weed of agricultural land"	"Camelina {Camelina sativa}"
47	"Fruit oblong to ellipsoid; weed of wet or swampy areas"	Rorippa
48	"Fruit flattened with the septum across the broadest diam"	49
48	"Fruit flattened with the septum across the narrowest diam"	50
49	"Leaves ± linear to obovate; petals white; fruit less than 10 mm long"	"Alyssum {Alyssum linifolium}"
49	"Leaves ± triangular; petals bluish-purple; fruit more than 20 mm long"	"Lunaria {Lunaria annua}"
50	"Mature fruit with apex rounded, with or without a slight notch"	51
50	"Mature fruit with apex truncate or very deeply or broadly notched"	52
51	"Fruit slightly compressed, 3–5 mm long; pedicels 4–10 mm long; west-central Victoria"	"Ballantinia {Ballantinia antipoda}"
51	"Fruit strongly flattened, 5–7 mm long; pedicels c. 2 mm long; mallee areas of north-west"	"Phlegmatospermum {Phlegmatospermum eremaeum}"
52	"Fruit more than 3 mm wide"	53
52	"Fruit less than 3 mm wide"	54
53	"Fruit 4–9 mm wide, more or less inverted triangle-shaped"	"Capsella {Capsella bursa-pastoris}"
53	"Fruit 12–22 mm wide, circular with deep narrow apical notch"	"Thlaspi {Thlaspi arvense}"
54	"Fruit obovate to obovate-oblong, valves keeled but not winged; basal leaves pinnately lobed or divided; weed of saline habitats"	"Hornungia {Hornungia procumbens}"
54	"Fruit wedge-shaped to obcordate, valves winged in distal third; leaves all entire or with a few blunt teeth; rare native of near-coastal sites west of Cape Otway"	"Microlepidium {Microlepidium pilosulum}"
55	"Fruit subglobular with terminal, leaf-like extension"	"Carrichtera {Carrichtera annua}"
55	"Fruit dumb-bell-shaped (deeply notched at base and apex with subglobose locules)"	Lepidium