少花扇叶芥查看源代码讨论查看历史
| 少花扇叶芥 |
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中文名:少花扇叶芥 学 名:Desideria stewartii (T. Anderson) Al-Shehbaz 界:植物界 门:被子植物门 纲:双子叶植物纲 亚 纲:原始花被亚纲 目:罂粟目 科:十字花科 属:高原芥属 种:少花扇叶芥 |
少花扇叶芥（shǎo huā shàn yè jiè，学名：Desideria stewartii (T. Anderson) Al-Shehbaz）是十字花科、高原芥属植物。多年生草本，高可达8厘米，基生叶莲座状，叶片匙形。 [1]
少花扇叶芥形态特征
多年生草本，高3-5（-8）厘米，除长角果外全株被毛。茎伸展或近伸展。基生叶莲座状，近肉质，叶片匙形，长1-3厘米，宽5-10毫米，全缘或有5-10个钝圆齿，被白色长单毛与分枝毛。
总状花序有花8-15朵，有苞叶，果期可长达6厘米；萼片长约2.5毫米；花瓣长约5毫米。长角果条形，长25-40毫米，宽2.5-3.5毫米，压扁，无毛，花柱无或近无，柱头压扁，2浅裂；果梗长约6毫米，上升或偏向1侧。种子多数，长约1.5毫米。
Christolea stewartii (T. Anders.) Jafri in Not. Roy. Bot. Gard. Edinb. 22 (1): fig. 1. E. 1955 et Fl. West Pakist. 55: 157. 1973. ——Cheiranthus stewartii T. Anders. in Hook. f. Fl. Brit. Ind. 1: 132. 1872. ——Ermania stewartii (T. Adders.) O. E. Schulz in Engl. Bot. Jahrb. 66: 98. 1933. ——Oreoblastus stewartii (T. Anders.) Suslova in Бот. Жур. СССР 57: 653. 1972.
Cheiranthus stewartii T. Anderson in J. D. Hooker, Fl. Brit. India 1: 132. 1872; Christolea stewartii (T. Anderson) Jafri; Ermania stewartii (T. Anderson) O. E. Schulz; Oreoblastus stewartii (T. Anderson) Suslova.
Plants 8-20 cm tall, densely pilose. Trichomes stalked, forked, rarely some simple near stem base. Stems simple, pilose or glabrous. Basal leaves subfleshy, pilose, persistent; petiole 2-10 mm, not ciliate; leaf blade broadly obovate or spatulate, 2-15 × 2-10 mm, base cuneate or attenuate, margin 3-5-toothed or entire, apex acute. Cauline leaves similar to basal or linear to lanceolate, often entire. Racemes 8-15-flowered, bracteate throughout; bracts similar to cauline leaves but smaller, often adnate to pedicel. Fruiting pedicels ascending, straight or slightly curved, 4-12 mm, pilose. Flowers not seen. Ovules 14-24 per ovary. Fruit lanceolate to lanceolate-linear, 1.7-3.5 cm × 3-5 mm, strongly flattened; valves pilose or glabrous, distinctly veined; septum complete, membranous; style obsolete; stigma 2-lobed. Seeds brown, ovate, 1.4-2.2 × 0.8-1.1 mm, biseriate, minutely reticulate. Fr. Aug.
Scree slopes; 4100-5300. Xizang [India, Kashmir].