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3. ONOPORDUM Group
大翅蓟群 da chi ji qun
Authors: Zhu Shi & Werner Greuter
Herbs, biennial or perennial. Capitula homogamous, bisexual. Phyllaries pointed, often ending in a straight or recurved spine. Receptacle densely covered with bristles or naked and alveolate. Florets bisexual. Corolla ± actinomorphic. Stamen filaments distinct, glabrous or papillose. Style branches coherent for most of their length. Achene glabrous; apical rim sometimes inconspicuous but usually forming a low to prominent ± denticulate (rarely entire) crown; apical plate flat or with a conic to rarely cylindric sclerenchymatous non-oleaginous body. Pappus of scabrid, barbellate, or plumose bristles basally connate into a ring, falling off together, rarely with an inner row of narrow scales.
Nine genera and ca. 90 species: N Africa, Asia, Europe; seven genera (one endemic) and 17 species (five endemic) in China.
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| 1 |
Receptacle naked and alveolate. |
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31 Onopordum |
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Receptacle covered with bristles |
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(2) |
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| 2 (1) |
Outer pappus of filiform bristles and inner pappus of narrow scales ending in a barbellate subulate tip. |
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30 Syreitschikovia |
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Pappus (when present) of bristles only |
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(3) |
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| 3 (2) |
Pappus bristles plumose. |
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32 Ancathia |
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Pappus bristles scabrid or barbellate |
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(4) |
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| 4 (3) |
Corolla yellow |
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(5) |
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Corolla purple, red, blue, or rarely white |
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(6) |
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| 5 (4) |
Plants stemless; capitula basal, shortly pedunculate, in center of leaf rosette. |
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29 Xanthopappus |
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Plants caulescent; capitula terminal on stem and branches. |
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27 Alfredia |
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| 6 (4) |
Basal and lower cauline leaves heart-shaped to triangular-sagittate, undivided. |
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26 Synurus |
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Basal and lower cauline leaves linear to elliptic, ± deeply pinnately divided. |
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28 Olgaea |
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Lower Taxa
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