Flowers in thyrses, racemes, spikes or umbels or rarely solitary in axils of basal leaves; pedicels with or without bracteoles, sometimes articulate. Sepals free, 5. Corolla yellow to white or rarely pinkish mauve [or blue], sometimes auriculate, 2-lipped; lobes usually unequal, often with blunt enations or projections inside; anterior spur often conspicuous. Stamens free from each other, epigynous. Ovary inferior, incompletely 2-locular; indusium horizontal, usually with bristles on lips; ovules several.
Fruit a 2- or 4-valved capsule; seeds flat or compressed, winged or with a thickened rim, caruncle absent.
| | Key to the species | |
| 1 | Corolla white or cream to very pale pink or mauve | Goodenia calcarata |
| Corolla yellow, often with brown markings | 2 |
| 2 | Leaves decurrent into wings on stem | Goodenia decurrens |
| Leaves not decurrent into wings on stem
Back to 1 | 3 |
| 3 | Flower stalks without bracteoles | 4 |
| Flower stalks with bracteoles
Back to 2 | 16 |
| 4 | Indusium notched or style 2-fid | 5 |
| Indusium and style entire
Back to 3 | 6 |
| 5 | Indusium notched | Goodenia pusilliflora |
| Style 2-fid
Back to 4 | Goodenia berardiana |
| 6 | Corolla wing above auricle distinctly narrower than others | 7 |
| Corolla wings equal
Back to 4 | 9 |
| 7 | Plants stoloniferous | Goodenia heteromera |
| Plants not stoloniferous
Back to 6 | 8 |
| 8 | Corolla glabrous outside | Goodenia pinnatifida |
| Corolla hairy outside
Back to 7 | Goodenia elongata |
| 9 | Hairs on outside of corolla coarse and closely appressed | 10 |
| Hairs on outside of corolla spreading or absent
Back to 6 | 13 |
| 10 | Upper lip of indusium glabrous or nearly so | Goodenia lunata |
| Upper lip of indusium with long white bristles
Back to 9 | 11 |
| 11 | Leaves glaucous; corolla pale yellow | Goodenia glauca |
| Leaves not glaucous; corolla deep yellow
Back to 10 | 12 |
| 12 | Corolla up to 8 mm long | Goodenia occidentalis |
| Corolla more than 8 mm long
Back to 11 | Goodenia fascicularis |
| 13 | Plants with mostly glandular hairs | 14 |
| Plants with mostly simple hairs
Back to 9 | 15 |
| 14 | Leaves linear to lanceolate | Goodenia havilandii |
| Leaves ovate to circular (bracteoles present but sometimes hidden in the axil)
Back to 13 | Goodenia grandiflora |
| 15 | Corolla with prominent spur longer than ovary; plants of drier western areas | Goodenia cycloptera |
| Corolla pouch scarcely as long as ovary; plants of forests in south-east of State
Back to 13 | Goodenia elongata |
| 16 | Leaves with basal lobe on one side only | Goodenia glabra |
| Leaves with basal lobes on both sides or none
Back to 3 | 17 |
| 17 | Flower apparently glabrous and viscid outside | 18 |
| Flower hairy outside, rarely viscid and never varnished
Back to 16 | 19 |
| 18 | Leaves ovate, thin | Goodenia ovata |
| Leaves narrow-ovate to linear, thick
Back to 17 | Goodenia varia |
| 19 | Flowers solitary in axils of basal leaves | Goodenia willisiana |
| Flowers in racemes spikes or thyrses
Back to 17 | 20 |
| 20 | Bracts reduced, much smaller than leaves | 21 |
| Bracts similar to leaves; leaves mostly cauline
Back to 19 | 29 |
| 21 | Leaves almost all basal | 22 |
| Leaves mostly cauline
Back to 20 | 28 |
| 22 | Scapes up to one and a half times as long as leaves | Goodenia humilis |
| Scapes more than one and a half times as long as leaves
Back to 21 | 23 |
| 23 | Indusium folded downwards | Goodenia gracilis |
| Indusium flat or concave
Back to 22 | 24 |
| 24 | Flowers sessile | 25 |
| Flowers stalked
Back to 23 | 26 |
| 25 | Hairs on corolla simple | Goodenia bellidifolia |
| Hairs on corolla stellate
Back to 24 | Goodenia stelligera |
| 26 | Hairs on corolla stellate | Goodenia dimorpha |
| Hairs on corolla simple or glandular
Back to 24 | 27 |
| 27 | Corolla less than 10 mm long | Goodenia macbarronii |
| Corolla more than 10 mm long
Back to 26 | Goodenia paniculata |
| 28 | Flowers sessile | Goodenia glomerata |
| Flowers stalked
Back to 21 | Goodenia rostrivalvis |
| 29 | Bracteoles inserted immediately below ovary | Goodenia rotundifolia |
| Bracteoles inserted well below ovary
Back to 20 | 30 |
| 30 | Hairs on flower cottony or webby | 31 |
| Hairs on flower not cottony or webby, often glandular
Back to 29 | 32 |
| 31 | Lower leaves linear to narrow-elliptic | Goodenia delicata |
| Lower leaves broader than narrow-elliptic
Back to 30 | Goodenia hederacea |
| 32 | Bracteoles attached close to base of flower stalk | Goodenia grandiflora |
| Bracteoles attached almost half way from the base of flower stalk or higher
Back to 30 | 33 |
| 33 | Plants prostrate | Goodenia fordiana |
| Plants erect or ascending
Back to 32 | 34 |
| 34 | Corolla pouch conspicuous | Goodenia stephensonii |
| Corolla pouch inconspicuous
Back to 33 | Goodenia heterophylla |
