Key to the genera of the Liabeae
1. |
Capitula sessile in basal leaf rosette; style arms of ray florets spiralled |
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Capitula short- to long- pedicellate; style arms usually evenly curved |
2 |
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2. (1) |
Leaves not tomentose, stem and leaf hairs stiff with enlarged bases; achenes glabrous |
3 |
Leaves usually tomentose, at least beneath, hairs not stiff with enlarged bases; achenes setuliferous |
4 |
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3. (2) |
Small, usually decumbent herbs; leaf lamina 3-veined at base; achenes compressed with 2 ribs; pappus reduced or lacking |
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Robust, erect herbs or subshrubs; leaf lamina with 5-9 veins radiating from base; achenes usually 4-angled; pappus of many awns or setae |
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4. (2) |
Anther thecae usually blackish; style arms of disk florets less than 1/3 as long as hipidulous upper part of style shaft |
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Anther thecae pale; style arms often ½ as long as hispidulous upper part of style shaft or longer |
5 |
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5. (4) |
Inflorescence with all bracts or with all but basal bracts and branches subopposite or alternate; receptacle scarcely alveolate, glabrous; stems with latex |
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Inflorescence with all or at least primary bracts and branches opposite; receptacle with minute hairs, chaff or projections; stems without latex |
