1	"Roots fibrous, rhizome small; inflorescence a terminal umbel"	"Thysanotus chinensis"
1	"Roots tuberous, tubers cylindrical to ellipsoidal; inflorescence simple to paniculate with few to more than 20 umbels"	2
2	"Flower buds, perianth at anthesis and sometimes bracts lanate"	"Thysanotus admirabilis"
2	"Flower buds, perianth at anthesis and bracts glabrous"	3
3	"Inflorescence simple or with 1–3 branches; antesepaline anthers bright yellow with light purple or violet tips, 2–2.8 mm long"	"Thysanotus banksii"
3	"Inflorescence paniculate and usually much branched; antesepaline anthers light purple, purple or violet with white to pale yellow base, 4–5 mm long"	"Thysanotus tuberosus"