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26. Tribe HEDYSAREAE
岩黄耆族 yan huang qi zu
Authors: Yingxin Liu, Langran Xu, Zhaoyang Chang, Xiangyun Zhu, Hang Sun, Gennady P. Yakovlev, Byoung-Hee Choi, Kai Larsen & Bruce Bartholomew
Herbs, shrublets, shrubs, or rarely small trees. Stipules often scarious, usually basally adnate to petiole and sometimes connate around stem. Leaves imparipinnate, paripinnate, 1-foliolate, or sometimes rachis reduced and apparently digitately compound; stipels absent; leaflets opposite, margin entire. Racemes axillary, sometimes shortened and apparently fasciculate or reduced to a solitary flower; bract and bracteoles small. Corolla marcescent or deciduous; standard generally narrowed to a short claw; wings sometimes very reduced; keel with leading edge ± truncate. Stamens diadelphous (9+1); vexillary stamen free or connate in middle with others; anthers uniform, dorsifixed, with broad connective. Ovary 1- to several ovuled. Legume mostly articulate and moniliform or flattened, some not articulate or reduced to a single article, indehiscent, often with bristles or spines. Seeds reniform or subreniform, with a small hilum.
Twelve genera and 400-460 species: N and NE Africa, Asia, Europe, North America; eight genera and 121 species (52 endemic, one introduced) in China.
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| 1 |
Leaves 1-foliolate (but also see Corethrodendron scoparium). |
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153 Alhagi |
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Leaves pinnately compound or sometimes rachis reduced and leaves apparently digitately compound |
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(2) |
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| 2 (1) |
Leaves paripinnate with rachis often extending beyond last leaflet pair or rachis reduced and leaves apparently digitate |
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(3) |
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Leaves imparipinnate |
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(4) |
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| 3 (2) |
Flowers solitary with pedicel articulate with a very short peduncle or 2-5 in a fascicle at end of a very short peduncle; legume cylindric or compressed. |
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155 Caragana |
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Flowers 2-5 in a raceme with a 1.5-3 cm peduncle; legume inflated. |
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156 Halimodendron |
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| 4 (2) |
Legume reduced to 1 subglobose article; annual or perennial herbs; corolla wings ca. 1/4 as long as standard. |
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151 Onobrychis |
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Legume articulate and divided into (1 or)2-5(-7) articles or else cylindric or linear and multiseeded; perennial herbs, shrublets, shrubs, or rarely small trees; corolla wings 2/5 to as long as standard, or if 1/4-1/3 as long as standard then shrublets |
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(5) |
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| 5 (4) |
Legume cylindric or linear and not divided into articles. |
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154 Calophaca |
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Legume articulate and divided into several articles |
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(6) |
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| 6 (5) |
Plants spiny. |
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152 Eversmannia |
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Plants unarmed |
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(7) |
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| 7 (6) |
Legume adaxial suture grooved; corolla standard not turned backward at anthesis, keel with claw longer than half of lamina; shrublets with stems conspicuous; corolla marcescent on mature legume; stipules deciduous; pollen colporoidate. |
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149 Corethrodendron |
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Legume sutures connate or winged; corolla standard turned backward at anthesis, keel with claw half or less than half as long as lamina; perennial herbs, if shrublets then stems inconspicuous; corolla mostly deciduous at mature legume; stipules marcescent or deciduous; pollen colpate or colporoidate. |
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150 Hedysarum |
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Lower Taxa
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