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33. Anabasis Linnaeus, Sp. Pl. 1: 223. 1753.
假木贼属 jia mu zei shu
Subshrubs. Woody stem much branched, or reduced to an enlarged, tuberculate caudex; annual branches green, jointed, glabrous or with papillate processes. Leaves opposite, semiterete and fleshy, subulate, scale-like, or obscure, bases united, apex obtuse or acute, sometimes with an acicular awn; leaf axil usually cottony. Flowers solitary in leaf axils, rarely clustered, bisexual; bractlets 2, navicular, usually shorter than perianth. Perianth segments 5, membranous; outer 3 segments broadly elliptic or suborbicular; inner 2 segments ovate; outer 3 or all 5 segments with a winglike appendage abaxially, rarely without such an appendage. Disk cupular, 5-lobed; lobes interstaminal, semiorbicular or linear, adaxially ± granulose glandular. Stamens 5, inserted on disk; filaments subulate, slightly compressed; anthers oblong-ovate, apex obtuse or mucronate. Ovary ovoid, glabrous or papillate; style short; stigmas 2, erect or recurved. Utricle subglobose to broadly ellipsoid, compressed; pericarp fleshy. Seed vertical; embryo spiral; perisperm absent.
About 30 species: from the Mediterranean region to China, Mongolia, and Russia (Siberia); eight species in China.
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| 1 |
Woody stems much branched. |
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(2) |
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Woody stems reduced to an enlarged, tuberculate caudex. |
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(5) |
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| 2 (1) |
Perianth segments without a winglike appendage in fruit. |
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4 A. salsa |
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Perianth segments with a winglike appendage in fruit (at early anthesis slightly thickened abaxially). |
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(3) |
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| 3 (2) |
Leaves obscure, slightly scale-like, broadly angular, apex awnless. |
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3 A. aphylla |
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Leaves distinct, subulate or semiterete, apex with an acicular awn. |
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(4) |
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| 4 (3) |
Disk lobes linear, apex pectinate; leaves appressed to branch or slightly spreading, usually subulate. |
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1 A. elatior |
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Disk lobes semiorbicular, apex entire; leaves spreading, semiterete or subclavate. |
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2 A. brevifolia |
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| 5 (1) |
Leaves linear, semiterete, densely covered with papillate processes. |
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5 A. pelliotii |
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Leaves scale-like to subulate, smooth. |
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(6) |
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| 6 (5) |
Perianth segments without a winglike appendage in fruit; disk lobes semiorbicular; leaves subulate, apex with an acicular awn. |
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8 A. eriopoda |
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Perianth segments with a winglike appendage in fruit (at early anthesis slightly thickened abaxially); disk lobes linear; leaves scale-like, apex awnless. |
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(7) |
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| 7 (6) |
Annual branches simple, with 5-8 internodes. |
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6 A. cretacea |
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Annual branches branched, with 8-12 internodes. |
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7 A. truncata |
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Lower Taxa
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