打开主菜单

求真百科

柔毛藏芥

柔毛藏芥

中文名:柔毛藏芥

学 名:Phaeonychium villosum

(Maxim.) 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:柔毛藏芥

柔毛藏芥(学名:Phaeonychium villosum (Maxim.) Al-Shehbaz)是十字花科高原芥属植物。多年生草本,高可达16厘米。生于高山草甸或流石滩。 [1]

目录

柔毛藏芥形态特征

多年生草本,高5-16厘米,被白色柔软长单毛。地下斜生根茎,近地面处分枝,茎数个丛生,茎基部有残存的淡黄白色或黑褐色叶柄。

基生叶具柄,柄长3.5-8厘米,近基部宽约8毫米,边缘淡白色,近膜质;叶片长椭圆状披针形,长1-5厘米,宽3-8毫米,顶端急尖或钝尖,基部渐窄成柄,全缘,边缘有白色而柔软的睫毛;茎生叶向上渐小,柄亦渐短。花序伞房状,花梗长1-1.8厘米,被较密单毛;萼片长5-6毫米,外轮的较内轮的为宽,外轮萼片为椭圆状卵形,内轮萼片为窄椭圆状卵形,淡黄绿色,顶端色深,被毛,有宽的白色膜质边缘,宿存;花瓣淡紫色,倒卵形,长1-1.1厘米,宽4-5毫米,顶端微缺,基部楔状成爪。长角果长圆状卵形,弯曲,长8-10(-14)毫米,宽约3毫米,果瓣稍作龙骨状,二端钝尖;隔膜半透明,完整。

种子每室1行,种子宽卵状圆形,长约3毫米,棕褐色;子叶背倚胚根。花期6月。

Parrya villosa Maximowicz, Fl. Tangut. 55. 1889; Braya kokonorica O. E. Schulz; Christolea villosa (Maximowicz) Jafri; C. villosa var. platyfilamenta K. C. Kuan & Z. X. An; Ermania villosa (Maximowicz) O. E. Schulz; Parrya villosa var. albiflora O. E. Schulz; Parryopsis villosa (Maximowicz) Botschantzev.

Plants (4-)6-14(-18) cm tall; caudex slender, few branched, covered with petiolar remains of previous years. Trichomes simple, often crisped, to 1.5 mm. Stems erect, simple from caudex, villous. Basal leaves rosulate; petiole (0.7-)1-3(-4) cm, ciliate, persistent, becoming papery, strongly expanded and to 7 mm wide at base; leaf blade narrowly oblanceolate or oblong-linear, (0.8-)1.5-2.8(-3.5) cm × (1.5-)2.5-6(-8) mm, villous, base attenuate, margin entire, apex obtuse. Cauline leaves shortly petiolate; leaf blade often oblong or elliptic-lanceolate, about as large as that of basal leaves. Racemes 10-25-flowered, basally bracteate; flowers fragrant. Fruiting pedicels divaricate, straight or slightly curved, (0.5-)0.7-1.5(-2) cm, villous. Sepals oblong or ovate, 3-5 × 1.5-2 mm, sparsely villous, persistent, margin membranous. Petals lavender or purple, broadly spatulate, 8-10 × 4-6 mm, apex emarginate; claw 2.5-3.5 mm. Filaments lavender; median pairs 3-4 mm; lateral pair 1.5-2 mm; anthers oblong, 1-1.2 mm. Ovules 4-8 per ovary. Fruit oblong or ovoid, (5-)7-12 × 2.5-4 mm, terete, sessile or on gynophores to 1 mm; valves obscurely veined, shortly pubescent; style 1-1.5 mm; stigma capitate, entire or slightly 2-lobed. Seeds ovoid, 2-2.5 × 1-1.5 mm. Fl. Jun-Jul, fr. Aug-Sep.

  • Slopes, alpine turf; 3500-4500 m. Gansu, Qinghai, Sichuan, Xizang.

In both FRPS (33: 292, 440. 1987) and Fl. Qinghai. (1: 469, 502. 1997), the flowering material of Phaeonychium villosum was recognized as Christolea villosa and the fruiting material as Braya kokonorica; the two species were placed in different tribes.

柔毛藏芥产地生境

分布于中国青海互助县治高县)、西藏。生于高山草甸或流石滩,海拔4500米处。

参考来源

  1. 柔毛藏芥, 植物智, 2020-01-18