柔毛藏芥檢視原始碼討論檢視歷史
| 柔毛藏芥 |
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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]
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。