苞序葶苈Draba ladyginii
中文名（Chinese Name）：苞序葶苈
学名（Scientific Name）：Draba ladyginii Pohle
英文名（English Common Name）：
别名（Chinese Common Name）：
异名（Synonym）：Draba lanceolata var. chingii O. E. Schulz Draba incana var. microphylla W. W. Sm. Draba lanceolata var. latifolia O. E. Schulz Draba incana var. flaccida Maxim.
科属（Family & Genus）：十字花科Cruciferae葶苈属Draba
形态特征（Description）：多年生丛生草本，高10-30厘米。根茎分枝多，基部宿存纤维状枯叶，上部簇生莲座状叶。茎直立，单一或在上部分枝，密被叉状毛、星状毛或单毛。基生叶椭圆状披针形，长1-1.5厘米，宽2-2.7毫米，顶端钝或渐尖，基部渐窄，全缘或每缘各有1锯齿，密生单毛和星状毛；茎生叶卵形或长卵形，长4-16毫米，宽3-4毫米，顶端急尖，基部宽，无柄，每缘各有1-3锯齿，有单毛、星状毛或分枝毛。总状花序下部数花具叶状苞片；花瓣白色或淡黄色，倒卵形，长约3毫米，基部楔形，顶端微凹；雄蕊长1.8-2毫米；子房条形，无毛。短角果条形，长7-12毫米，宽约1.2毫米，无毛，直或扭转，果梗与果序轴成直角向上开展；花柱长0.5-1毫米；种子褐色，椭圆形。花期5-6月，果期7-8月。
分布（Distribution）：产内蒙古、河北、山西、湖北、陕西、甘肃、宁夏、青海、新疆、四川、云南、西藏。生于路旁向阳处或潮湿地，海拔2100-4200米。苏联东西伯利亚有分布。
用途（Use）：
引自中国植物志英文版：FOC Vol. 8 Page 69
Draba ladyginii Pohle, Izv. Imp. Bot. Sada Petra Velikago. 14: 472. 1914.
苞序葶苈 bao xu ting li | Brassicaceae | Draba
Draba incana Linnaeus var. flaccida Maximowicz; D. incana var. microphylla W. W. Smith; D. lanceolata Royle var. chingii O. E. Schulz; D. lanceolata var. latifolia O. E. Schulz.
Herbs perennial, (7-)15-45(-60) cm tall, cespitose. Caudex slender, few branched, ultimate branches terminated in rosettes, covered with petiolar remains of previous years. Stems erect, simple or rarely branched above middle, sparsely to densely pubescent with subsessile stellate trichomes, often glabrescent distally. Basal leaves rosulate, persistent; petiole 5-10(-15) mm, sometimes undifferentiated; leaf blade elliptic, oblong, or lanceolate, (0.3-)1-2.5(-4) cm × (1-)2-7(-10) mm, abaxially pubescent with sessile or short-stalked, 4-rayed stellate trichomes 1 or 2 rays of which often branched, adaxially pubescent with similar stellate trichomes or with a mixture of stellate and simple ones, base attenuate to cuneate, margin entire or denticulate, apex acute. Cauline leaves (4-)6-19(-26), sessile; leaf blade ovate, oblong, or elliptic, 0.4-2.5(-4) cm × 1.5-7(-15) mm, pubescent as basal leaves or adaxially strigose with simple trichomes, base cuneate to obtuse, margin entire or 1-4(-7)-toothed on each side, apex acute. Racemes (8-)14-35(-45)-flowered, bracteate basally, not elongated in fruit. Fruiting pedicels 2-10(-12) mm, divaricate, straight, glabrous or pubescent all around with subsessile, forked or stellate trichomes sometimes mixed with simple ones. Sepals oblong or ovate, 1-1.5 × 0.5-0.6 mm, erect, abaxially pilose with simple trichomes, base of lateral pair not saccate, margin membranous. Petals white, broadly spatulate, 2-3 × 0.8-1.1 mm, apex emarginate; claw absent. Filaments 0.9-2 mm; anthers ovate, 0.2-0.3 mm. Ovules (28-)32-52(-60) per ovary. Fruit linear, (5-)7-12(-17) × 1-1.5 mm, erect or rarely divaricate, latiseptate, rarely slightly twisted; valves glabrous, base and apex obtuse, with a distinct midvein; style obsolete, rarely to 0.1 mm. Seeds brown, ovate, 0.6-0.8 × 0.4-0.5 mm. Fl. and fr. Jun-Aug.
* Sunny roadsides, sandy damp places, scrub, alpine turf, wood margins; 2100-4700 m. Gansu, Hebei, Hubei, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shanxi, Sichuan, Xinjiang, Xizang, Yunnan.
Except for not having fully mature fruits, the type collection of Draba lanceolata var. chingii, R. C. Ching 497 (holotype, B; isotypes, E, GH, P, PE, US), is indistinguishable from that of D. ladyginii, Ladygin 381 (holotype, LE; photos, MO, PE).
（责任编辑：徐晔春）
学名（Scientific Name）：Draba ladyginii Pohle
英文名（English Common Name）：
别名（Chinese Common Name）：
异名（Synonym）：Draba lanceolata var. chingii O. E. Schulz Draba incana var. microphylla W. W. Sm. Draba lanceolata var. latifolia O. E. Schulz Draba incana var. flaccida Maxim.
科属（Family & Genus）：十字花科Cruciferae葶苈属Draba
形态特征（Description）：多年生丛生草本，高10-30厘米。根茎分枝多，基部宿存纤维状枯叶，上部簇生莲座状叶。茎直立，单一或在上部分枝，密被叉状毛、星状毛或单毛。基生叶椭圆状披针形，长1-1.5厘米，宽2-2.7毫米，顶端钝或渐尖，基部渐窄，全缘或每缘各有1锯齿，密生单毛和星状毛；茎生叶卵形或长卵形，长4-16毫米，宽3-4毫米，顶端急尖，基部宽，无柄，每缘各有1-3锯齿，有单毛、星状毛或分枝毛。总状花序下部数花具叶状苞片；花瓣白色或淡黄色，倒卵形，长约3毫米，基部楔形，顶端微凹；雄蕊长1.8-2毫米；子房条形，无毛。短角果条形，长7-12毫米，宽约1.2毫米，无毛，直或扭转，果梗与果序轴成直角向上开展；花柱长0.5-1毫米；种子褐色，椭圆形。花期5-6月，果期7-8月。
分布（Distribution）：产内蒙古、河北、山西、湖北、陕西、甘肃、宁夏、青海、新疆、四川、云南、西藏。生于路旁向阳处或潮湿地，海拔2100-4200米。苏联东西伯利亚有分布。
用途（Use）：
引自中国植物志英文版：FOC Vol. 8 Page 69
Draba ladyginii Pohle, Izv. Imp. Bot. Sada Petra Velikago. 14: 472. 1914.
苞序葶苈 bao xu ting li | Brassicaceae | Draba
Draba incana Linnaeus var. flaccida Maximowicz; D. incana var. microphylla W. W. Smith; D. lanceolata Royle var. chingii O. E. Schulz; D. lanceolata var. latifolia O. E. Schulz.
Herbs perennial, (7-)15-45(-60) cm tall, cespitose. Caudex slender, few branched, ultimate branches terminated in rosettes, covered with petiolar remains of previous years. Stems erect, simple or rarely branched above middle, sparsely to densely pubescent with subsessile stellate trichomes, often glabrescent distally. Basal leaves rosulate, persistent; petiole 5-10(-15) mm, sometimes undifferentiated; leaf blade elliptic, oblong, or lanceolate, (0.3-)1-2.5(-4) cm × (1-)2-7(-10) mm, abaxially pubescent with sessile or short-stalked, 4-rayed stellate trichomes 1 or 2 rays of which often branched, adaxially pubescent with similar stellate trichomes or with a mixture of stellate and simple ones, base attenuate to cuneate, margin entire or denticulate, apex acute. Cauline leaves (4-)6-19(-26), sessile; leaf blade ovate, oblong, or elliptic, 0.4-2.5(-4) cm × 1.5-7(-15) mm, pubescent as basal leaves or adaxially strigose with simple trichomes, base cuneate to obtuse, margin entire or 1-4(-7)-toothed on each side, apex acute. Racemes (8-)14-35(-45)-flowered, bracteate basally, not elongated in fruit. Fruiting pedicels 2-10(-12) mm, divaricate, straight, glabrous or pubescent all around with subsessile, forked or stellate trichomes sometimes mixed with simple ones. Sepals oblong or ovate, 1-1.5 × 0.5-0.6 mm, erect, abaxially pilose with simple trichomes, base of lateral pair not saccate, margin membranous. Petals white, broadly spatulate, 2-3 × 0.8-1.1 mm, apex emarginate; claw absent. Filaments 0.9-2 mm; anthers ovate, 0.2-0.3 mm. Ovules (28-)32-52(-60) per ovary. Fruit linear, (5-)7-12(-17) × 1-1.5 mm, erect or rarely divaricate, latiseptate, rarely slightly twisted; valves glabrous, base and apex obtuse, with a distinct midvein; style obsolete, rarely to 0.1 mm. Seeds brown, ovate, 0.6-0.8 × 0.4-0.5 mm. Fl. and fr. Jun-Aug.
* Sunny roadsides, sandy damp places, scrub, alpine turf, wood margins; 2100-4700 m. Gansu, Hebei, Hubei, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shanxi, Sichuan, Xinjiang, Xizang, Yunnan.
Except for not having fully mature fruits, the type collection of Draba lanceolata var. chingii, R. C. Ching 497 (holotype, B; isotypes, E, GH, P, PE, US), is indistinguishable from that of D. ladyginii, Ladygin 381 (holotype, LE; photos, MO, PE).
（责任编辑：徐晔春）
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