開啟主選單

求真百科

柔毛藏芥

中文名:柔毛藏芥

學 名:Phaeonychium villosum

(Maxim.) Al-Shehbaz

界:植物界

門:被子植物門

綱:雙子葉植物綱

亞 綱:原始花被亞綱

目:罌粟目

科:十字花科

屬:高原芥屬

種:柔毛藏芥

柔毛藏芥(學名:Phaeonychium villosum (Maxim.) Al-Shehbaz)是十字花科高原芥屬植物。多年生草本,高可達16厘米。生於高山草甸或流石灘。 [1]

目錄

柔毛藏芥形態特徵

多年生草本,高5-16厘米,被白色柔軟長單毛。地下斜生根莖,近地面處分枝,莖數個叢生,莖基部有殘存的淡黃白色或黑褐色葉柄。

基生葉具柄,柄長3.5-8厘米,近基部寬約8毫米,邊緣淡白色,近膜質;葉片長橢圓狀披針形,長1-5厘米,寬3-8毫米,頂端急尖或鈍尖,基部漸窄成柄,全緣,邊緣有白色而柔軟的睫毛;莖生葉向上漸小,柄亦漸短。花序傘房狀,花梗長1-1.8厘米,被較密單毛;萼片長5-6毫米,外輪的較內輪的為寬,外輪萼片為橢圓狀卵形,內輪萼片為窄橢圓狀卵形,淡黃綠色,頂端色深,被毛,有寬的白色膜質邊緣,宿存;花瓣淡紫色,倒卵形,長1-1.1厘米,寬4-5毫米,頂端微缺,基部楔狀成爪。長角果長圓狀卵形,彎曲,長8-10(-14)毫米,寬約3毫米,果瓣稍作龍骨狀,二端鈍尖;隔膜半透明,完整。

種子每室1行,種子寬卵狀圓形,長約3毫米,棕褐色;子葉背倚胚根。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.

柔毛藏芥產地生境

分布於中國青海互助縣治高縣)、西藏。生於高山草甸或流石灘,海拔4500米處。

參考來源

  1. 柔毛藏芥, 植物智, 2020-01-18