| Feature | Family |
| Wrinkled Petals? | |
| Tank-like basal rosette? | |
| Caryopsis? | |
| Vanilla? | |
| Closed Sheath? | |
| Lemma and Palea? | |
| Elongated Receptacle? | |
| Aquatic Habitat? | |
| Pollen group into Pollinia? | |
| Spirally Twisted Stigmas? | |
| Glumes? | |
| Open Sheath? | |
| Bay leaves, cinnamon, avocado? | |
| Sepals quickly deciduous? | |
| Numerous Stamens and Numerous Carpels? | |
| 4 leaf types: palmately-lobed, costapalmately lobed, pinnately-lobed, compound? | |
| Plants with white, yellow, orange, and red sap? | |
| Ginger, turmeric, cardamon, galangal, shell ginger, hidden lily, garland lily, torch ginger? | |
| Nectar Spurs? | |
| Anthers open by 2 or 4 flaps? | |
| Palmae? | |
| Spadix: fleshy axis holding numerous small flowers? | |
| Opium? | |
| Split rushes for baskets? | |
| Has Lip or 'Lebellum'? | |
| | Feature | Family |
| Sessile flowers? | |
| Plumous Styles? | |
| Barley, Rye, Corn? | |
| Stems Triangular in Cross Section? | |
| Stipules surrounding terminal buds? | |
| Epiphytic? | |
| Velamen: dead, water-absorbing epidermis? | |
| Coconut, betel nut, date palm? | |
| Saffron? | |
| Spanish moss? | |
| Short, thick filaments that are poorly differentiated from anthers? | |
| Pairs of basal nectar/odor-producing appendages associated with stamens? | |
| Smallest seeds without endosperm? | |
| Spathe: leaf or petal-like bract around the spadix? | |
| Round, solid stems? | |
| Amorphophallus Titanicus? | |
| Column: stamens adnate to style and stigma? | |
| Starchy Corms eaten (taro, poi)? | |
| Solitary terminal flowers? | |
| Resupinate development? | |
| Equitant leaves? | |
| Receptacle distinctly concave? | |
| Biggest flower in the world? | |
| Most ancestral flowering plant? | |
| Where is Amborella found?? | |
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