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具苞糖芥Erysimum wardii

时间:2013-09-05 17:22来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):具苞糖芥 学名( Scientific Name ): Erysimum wardii Polatschek 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): Erysimum Sect. Bracteatum K. C. Kuan 科属( Family Genus ):
中文名(Chinese Name):具苞糖芥
学名(Scientific Name):Erysimum wardii Polatschek
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Erysimum Sect. Bracteatum K. C. Kuan 
科属(Family & Genus):十字花科(Cruciferae)糖芥属
形态特征(Description):多年生草本,高40-90厘米;茎数个,直立或上升,有分枝,具贴生2叉丁字毛。基生叶线形或窄线形,长4.5-8厘米,宽0.5-1毫米,顶端急尖,基部渐狭,和叶柄无明显界限,全缘或具疏生小齿;茎生叶和基生叶形状相似,但较短,长1-1.5厘米。总状花序顶生,果期长达25厘米;几乎每花下有1苞片,和茎生叶相似,条形或条状披针形,宿存;萼片长圆形,长5-6毫米,外面有2叉丁字毛;花瓣黄色,匙形,长10-12毫米,顶端圆形,下部有长爪。长角果线形,长5-7.5厘米,宽约1毫米,压扁,具贴生2叉丁字毛;花柱长1-1.5毫米,柱头头状;果梗粗,长5-9毫米。种子椭圆形,长1-1.5毫米,紫褐色。花、果期11月。
分布(Distribution):产四川、云南及西藏,生于河滩等处。
用途(Use):
引自中国植物志英文版 FOC Vol. 8 Page 165
Erysimum wardii Polatschek, Phyton (Horn). 34: 201. 1994.
具苞糖芥 ju bao tang jie| Brassicaceae  | Erysimum
Erysimum bracteatum W. W. Smith, Notes Roy. Bot. Gard. Edinburgh 8: 185. 1914, not (A. Gray) Kuntze (1891).
Herbs perennial, 20-90 cm tall. Trichomes almost exclusively malpighiaceous, rarely mixed with few 3- or 4-forked ones on leaves. Stems erect, simple or rarely branched basally. Basal leaves rosulate; petiole 1-4(-8) cm; leaf blade lanceolate to linear-lanceolate, (1.5-)3-10(-15) cm × (2-)3-7(-12) mm, base attenuate or cuneate, margin coarsely dentate, apex acute or acuminate. Upper cauline leaves sessile or subsessile, subentire. Racemes corymbose, densely flowered, bracteate basally, elongated considerably in fruit. Fruiting pedicels divaricate, ascending, or erect, (3-)5-11(-18) mm, stout, narrower than fruit, straight. Sepals lanceolate-linear, (6-)7-10 × 2-2.5 mm, lateral pair saccate. Petals orange-yellow to yellow, obovate, (1.2-)1.5-2(-2.3) cm × (4-)5-6(-7) mm, apex rounded; claw distinct, subequaling or longer than sepals. Filaments yellow, 8-11(-13) mm; anthers linear, 2-3(-3.5) mm. Ovules 50-80 per ovary. Fruit linear, slightly 4-angled or flattened, (5-)8-11 cm × 1.5-2 mm, slightly torulose, erect and subappressed to rachis or ascending to divaricate, straight; valves with a prominent midvein, outside with malpighiaceous trichomes, inside glabrous; style slender, 1-3 mm, cylindric, narrower than fruit; stigma capitate, subentire. Seeds oblong, 1.5-2 × 0.8-1.2 mm. Fl. May-Aug, fr. Jul-Sep.
* Alpine meadows, grassy slopes or scrub, open stony pastures, sandy and rocky mountain slopes, scree; 3000-4600 m. Sichuan, Xizang, Yunnan.




 
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