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149. Brachanthemum Candolle, Prodr. 6: 44. 1838.
短舌菊属 duan she ju shu
Authors: Zhu Shi, Christopher J. Humphries & Michael G. Gilbert
Subshrubs, ± procumbent, woody at base, pubescent with basifixed, medifixed, or stellate hairs. Leaves alternate or subopposite, few lobed. Synflorescences cymose; capitula solitary or in ± flat-topped cymes or panicles, heterogamous, radiate, rarely homogamous and discoid. Involucres campanulate, hemispheric, or obconical; phyllaries in 4 or 5 rows, rigidly herbaceous, scarious margin white or brown. Receptacle flat or convex to conical, epaleate. Marginal florets female, fertile, rarely absent; lamina yellow, rarely white. Disk florets yellow, bisexual; corolla tubular, apex 5-lobed. Anther bases obtuse; apical appendage lanceolate. Style branches linear, apex truncate. Achenes terete, 5-striate. Corona absent.
Ten species: C Asia, China, Mongolia; six species (one endemic) in China.
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1 |
Capitula homogamous, ray florets absent; phyllaries abaxially prominently gland-dotted. |
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6 B. gobicum |
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Capitula heterogamous, ray florets present; phyllaries abaxially not or only obscurely gland-dotted |
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(2) |
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2 (1) |
Plants with appressed stellate hairs. |
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5 B. pulvinatum |
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Plants with simple or medifixed hairs |
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(3) |
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3 (2) |
Most leaves palmately 3(-5)-lobed |
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(4) |
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Most leaves pinnately 4-7-lobed, uppermost leaves sometimes palmately 3-lobed |
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(5) |
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4 (3) |
Leaves sessile or subsessile, leaf blade obliquely elliptic or suborbicular, ca. 0.6 × 0.5 cm; achenes ca. 2.8 mm. |
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1 B. mongolicum |
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Leaves rather long petiolate, leaf blade almost orbicular, to 1.5(-2) × ca. 1.5 cm including petiole; achenes 1.8-2.2 mm. |
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2 B. fruticulosum |
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5 (3) |
Capitula (1-)3-15(-20), 2-4 crowded at apex, remainder on long divergent peduncles. |
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3 B. titovii |
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Capitula 1(-5) on long erect peduncles. |
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4 B. kirghisorum |
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Lower Taxa
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