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1. Subtribe TUSSILAGININAE
款冬亚族 kuan dong ya zu
Authors: Shangwu Liu, Yilin Chen, Irina D. Illarionova, Bertil Nordenstam, Hiroshige Koyama & Charles Jeffrey
Antheropodia cylindric or obconic, without enlarged marginal basal cells; endothecial tissue cell wall thickenings polarized, cells short; stigmatic areas usually confluent or contiguous; chromosome number usually 30, sometimes 29, 28, 27, 26, or 25, rarely 20 or 19.
About 60 genera and 900 species: worldwide; 11 genera (three endemic) and 269 species (193 endemic) in China.
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| 1 |
Phyllaries in 2 series, all alike, herbaceous. |
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92 Doronicum |
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Phyllaries in 1 series, herbaceous, cartilaginous, or leathery, if an outer series (calyculus) also present then distinct in size and form from inner series |
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(2) |
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| 2 (1) |
Inner florets functionally male; florets precocious |
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(3) |
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Inner florets bisexual, florets not precocious |
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(4) |
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| 3 (2) |
Plants monoecious; peduncles 1-headed. |
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101 Tussilago |
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Plants subdioecious; capitula with polygamous florets; peduncles several headed. |
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102 Petasites |
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| 4 (2) |
Leaves basally sheathed; achenes not beaked |
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(5) |
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Leaves basally not sheathed; achenes beaked or not |
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(7) |
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| 5 (4) |
Leaf margins involute; achenes hairy. |
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93 Farfugium |
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Leaf margins revolute; achenes glabrous |
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(6) |
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| 6 (5) |
Involucres cylindric or obconic. |
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94 Ligularia |
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Involucres broadly campanulate or hemispheric. |
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95 Cremanthodium |
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| 7 (4) |
Capitula radiate; rhizomes dilated, tuberiform. |
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96 Sinacalia |
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Capitula discoid, homogamous, florets bisexual; rhizomes not tuberiform |
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(8) |
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| 8 (7) |
Style branches with papillae divided at apex into 2 brushlike lobes. |
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97 Dicercoclados |
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Style branches with papillae undivided at apex |
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(9) |
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| 9 (8) |
Cotyledons 1; radical leaves umbraculiform, pendulous when young. |
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100 Syneilesis |
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Cotyledons 2; basal leaves not umbraculiform, not pendulous when young |
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(10) |
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| 10 (9) |
Anthers caudate or sagittate; radical leaves withered by anthesis. |
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98 Parasenecio |
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Anthers obtuse, not caudate; radical leaves persistent at anthesis. |
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99 Ligulariopsis |
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List of lower taxa
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