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46. Euchresta Bennett in Bennett & R. Brown, Pl. Jav. Rar. 148. 1840.
山豆根属 shan dou gen shu
Shrubs. Leaves alternate, imparipinnate; leaflets 3-7, opposite, estipellate. Flowers solitary along inflorescence rachis; bract persistent, small; bractlets absent. Calyx campanulate to tubular, very oblique and gibbous at back, caducous in fruit; teeth 5. Corolla much exserted; standard suberect, narrow, slightly longer than wings and keel; wings oblong, obtuse, slightly falcate, free, claw very long; keel rather like wings, scarcely cohering at apex. Stamens 10, diadelphous (9+1), vexillary free, remainder slightly connate; anthers small, versatile. Ovary stipitate, 1- or 2-ovuled; style filiform, incurved; stigma capitate, small. Legume stipitate, ovoid or ellipsoid, drupelike, indehiscent, 1-seeded. Seeds exalbuminous, without strophiole; testa white, membranous. x = 9.
Geographic distribution is the same as that of the tribe.
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| 1 |
Calyx tubular, longer than 1 cm, upper part broader, lower part narrower. |
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4 E. tubulosa |
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Calyx cup-shaped or campanulate, shorter than 1 cm |
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(2) |
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| 2 (1) |
Leaflets often 3(-5); calyx cup-shaped, 2-5 mm; standard not concave at apex. |
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1 E. japonica |
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Leaflets (3-)5-7(-9); calyx obliquely campanulate, ca. 9 mm; standard retuse at apex |
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(3) |
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| 3 (2) |
Leaflets to 9, elliptic-lanceolate or narrowly elliptic, tapering at apex. |
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2 E. formosana |
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Leaflets (3-)5, often obovate or broadly elliptic, apex cuspidate, abaxially appressed lanulose. |
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3 E. horsfieldii |
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Lower Taxa
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Treatments in Other Floras @ www.efloras.org
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