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28. Eremurus Marschall von Bieberstein, Fl. Taur.-Caucas. 3: 269. 1819.
独尾草属 du wei cao shu
Chen Xinqi (陈心启 Chen Sing-chi); Nicholas J. Turland
Henningia Karelin & Kirilov.
Herbs perennial, with vertical, short, stout rhizome, surrounded at neck by leaf bases and sometimes also fibers from old, disintegrated leaf bases. Roots numerous, long, thickened, fleshy. Leaves several, all basal, tufted, linear. Scape simple, erect, exceeding leaves, with sterile bracts distally and a terminal raceme. Raceme usually densely many flowered, usually elongate in fruit; bracts membranous, margin often minutely serrulate, fimbriate, or ciliate, apex often long filiform acuminate. Flowers bisexual, 1 per bract axil, pedicellate; pedicel articulate or not. Perianth campanulate, tubular, or cupular; segments 6, free or connate at base, with 1, 3, or 5 veins. Stamens 6, often exserted; filaments filiform or dilated toward base; anthers dorsifixed near base, base with 2 lobes to 0.5 mm. Ovary 3-loculed; seeds several per locule. Style filiform, long, often conspicuously persistent in fruit; stigma very small. Fruit a capsule, globose or subglobose, loculicidal. Seeds irregularly 3-angled, sometimes winged along angles.
About 45 species: C and W Asia, extending E to China and W to Turkey and Ukraine; four species (one endemic) in China.
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| 1 |
Bract margin entire or densely and minutely serrulate to fimbriate; pedicels spreading or slightly ascending, 1--3.5 cm, slender |
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4 Eremurus chinensis |
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Bract margin sparsely or densely long ciliate; pedicels ascending to suberect, stout (or, if slender, only 1--1.5 cm). |
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(2) |
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| 2 (1) |
Perianth broadly campanulate, segments ca. 1.5 × 0.8 cm; capsule 1.5--2 cm in diam., valves thick and hard or spongy; pedicels 2--4 cm |
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3 Eremurus anisopterus |
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Perianth narrowly campanulate or ± tubular, segments 0.8--1.2 × 0.2--0.45 cm; capsule 0.6--1 cm in diam., valves rather thin and soft; pedicels 0.6--1.5 cm. |
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(3) |
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| 3 (2) |
Perianth narrowly campanulate, segments pale yellow to brownish, obviously involute immediately after anthesis; stamens conspicuously exserted from perianth by up to 8 mm; pedicels ascending, not subappressed to rachis, slender; bract margin sparsely long ciliate |
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1 Eremurus altaicus |
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Perianth ± tubular, segments pale purple, scarcely or not involute immediately after anthesis; stamens only slightly exserted from perianth by ca. 2 mm; pedicels suberect, subappressed to rachis, stout; bract margin densely long ciliate |
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2 Eremurus inderiensis |
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Lower Taxa
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