这种植物叫什么。

　　穿叶异檐花 （异檐花）
　　Triodanis perfoliata

　　Stems rather stiffly erect, 15-60 cm tall, simple or branched, sometimes especially on angles with spreading, bristlelike hairs of uneven length. Leaves broadly ovate to suborbicular, 1-2 cm, shortly hispid on veins and margins, base strongly cordate-clasping, margin rather shallowly crenate-dentate or sometimes entire, apex subacute or rounded. Flowers 1-3 in axil, sessile. Calyx lobes of upper flowers (later ones) 5, rarely 4, rigid, triangular-lanceolate, acuminate; lower flowers (earlier ones) smaller, with 3 or 4 shorter calyx lobes. Corolla blue or white, rotate, 8-20 mm wide; corolla on earlier flowers rudimentary. Capsule oblong to narrowly turbinate, 4-6 mm, tardily opening near middle. Seeds lenticular. Fl. and fr. Apr-Jul. 2n = 56.
　　Naturalized on mountain slopes and by streams; 100-1000 m. Fujian (Chong’an, Jianning) [native to North America].

　　一年生直立草本,具乳汁。叶宽卵形,边缘具圆齿或锯齿,基部心形,抱茎;茎下部花为闭花受精，上半部花为开花受精，花五瓣，蓝紫色；蒴果。花期5~6月。

　　原产于北美洲及中美洲，在南美洲及亚洲归化，1974年出现在福建武夷山，20世纪80年代在福建各地陆续出现，喜生于海拔100~1000米的溪旁、草地或山坡。