高原芥 Christolea crassifolia

KINGDOM:Plantae || PHYLUM:Tracheophyta || CLASS:Magnoliopsida || ORDER:Brassicales || FAMILY:十字花科 Brassicaceae || GENUS: 高原芥属 Christolea

植物志记载

中国植物志
Flora of China

《中国植物志》|| 十字花科 CRUCIFERAE ||高原芥属 Christolea Camb. ||高原芥 Christolea crassifolia Cambess.

1. 高原芥图版81：1-3
Christolea crassifolia Camb. in Jacquem. Voy. Bot. 4: 16, tab. 17. 1844; Hook. f. et T. Anders. in Hook. f. Fl. Brit. Ind. 1: 154. 1872; N. Busch in Kom. Fl. URSS 8: 329, tab. 15, fig. 3. 1939; Jafri in Not. Roy. Bot. Gard. Edinb. 22: 54. 1955 et Fl. West Pakist. 55: 156, fig. 19. A-D. 1973. ——Ch. pamirica Korsh. in Mem. Acad. Petersb. 8 ser. 4: 89. 1896; N. Busch l. c. 329.
多年生草本，高10-40厘米，全株被白色单毛，很少无毛。地下有粗而直的深根，表面黑色，根端近地袖处生出多数分枝。茎直立，丛生。茎生叶肉质，形态与大小变化大，菱形、长圆状倒卵形、长圆状椭圆形以至匙形，长1-3厘米, 宽 (3) 5-20 (-25) 厘米，顶端具3-5个大齿，基部楔形渐窄。总状花序有花10-25朵；结果时可伸长达5-8 (-4) 厘米；萼片长圆形，长3.5-4毫米，有白色膜质边缘；花瓣白色或淡紫色，常于基部带紫红色，干时变为淡黄色。长角果线形至条状披针形，长1-2.3厘米，宽3-4.5毫米，种子间略凹下；果瓣顶端渐尖，基部钝，中脉明显，并可见网状侧脉；隔膜有明显或不明显的2脉；花柱近无，柱头压扁，微2裂。种子每室1行，种子长圆形，压扁，长约2毫米，宽约1.5毫米，黑褐色；子叶缘倚胚根。花期6-8月。
产青海、新疆、西藏。生砾石山坡、河滩、山坡草地，海拔4000-4800米。苏联的中亚，以及阿富汗、巴基斯坦均有分布。模式标本采自西藏西部。

数据来源中国植物物种信息数据库

《Flora of China》|| Brassicaceae || Christolea ||高原芥 Christolea crassifolia

1. Christolea crassifolia Cambessèdes in Jacquemont, Voy. Inde. 4(Bot.): 17. 1844.

高原芥 gao yuan jie

Christolea crassifolia

Credit: Photo: Al-Shehbaz

Christolea afghanica (K. H. Rechinger) K. H. Rechinger; C. crassifolia var. pamirica (Korshinsky) Korshinsky; C. incisa O. E. Schulz; C. pamirica Korshinsky; Ermania pamirica (Korshinsky) Ovczinnikov & Junussov; Koelzia afghanica K. H. Rechinger; Parrya ramosissima Franchet.

Herbs perennial, (8-)15-40(-50) cm tall; caudex woody, compactly branched, to 2.5 cm in diam. Stems branched, sometimes woody at base, hirsute with simple trichomes to 1.2 mm, rarely glabrous. Leaves all cauline, several to many; petiole (2-)5-12(-15) mm; leaf blade highly variable in shape, pubescence, or margin, usually obovate, spatulate, rhomboid, oblong, or elliptic, (0.8-)1.3-3.5(-5) × 0.4-1.6(-2.5) cm, leathery, densely to sparsely pubescent, rarely glabrous, base cuneate or attenuate, margin dentate or rarely incised along distal half, sometimes entire, apex acute or obtuse. Racemes several to many flowered. Fruiting pedicels 5-9(-12) mm, glabrous or sparsely puberulent, ascending. Sepals oblong, 3-4 × 1.5-2 mm, glabrous or sparsely puberulent. Petals white with purplish claws, 5-6.5 × 2-3 mm; claw 2.5-3.5 mm. Filaments white, median pairs 2.5-3 mm, lateral pair 1.5-2 mm; anthers oblong, 0.9-1.2 mm. Fruit linear, oblong, or lanceolate, 1.5-3(-3.5) cm × (2-)2.7-4(-4.5) mm, subappressed to rachis, straight, flattened; valves constricted between seeds, glabrous or puberulent, base obtuse, apex acute or subacuminate; style obsolete or to 0.4 mm. Seeds brown, oblong, 1.8-2.3 × 0.9-1.5 mm, laterally oriented. Fl. Jun-Sep, fr. Jul-Oct. 2n = 14*.

Alpine steppe, rocky slopes, bare slopes; 3500-4700 m. Qinghai, Xinjiang, Xizang [Afghanistan, Kashmir, Nepal, Pakistan, Tajikistan].

数据来源 eFloras.org