台湾油点草

台湾油点草
来自植物智的图片

中文名:台湾油点草界:植物界门:被子植物门纲:单子叶植物纲目:百合目亚目:百合亚目科:百合科属:油点草属拼音:tái wān yóu diǎn cǎo 中文学名:Tricyrtis formosana Baker

台湾油点草(tái wān yóu diǎn cǎo)，学名 Tricyrtis formosana Baker，高达65厘米。茎通常较细而柔弱，上部生有柔毛，有时中下部具少数分枝。叶狭椭圆形，两面绿色，上面近无毛，下面尤其脉上疏生柔毛，边缘毛较长，生于茎下部的叶长9-13厘米，宽3-4.5厘米，先端渐尖或急尖，基部收狭而多少呈楔形，短柄状，上部的叶基部通常心形抱茎。 ^[1]

台湾油点草形态特征

植株高达65厘米。茎通常较细而柔弱，上部生有柔毛，有时中下部具少数分枝。叶狭椭圆形，两面绿色，上面近无毛，下面尤其脉上疏生柔毛，边缘毛较长；

生于茎下部的叶长9-13厘米，宽3-4.5厘米，先端渐尖或急尖，基部收狭而多少呈楔形，短柄状，上部的叶基部通常心形抱茎。聚伞花序顶生和生于茎上部叶腋，具疏散的花；

花梗短，长0.8-1.8厘米；花被片淡紫色，内面的紫色斑点很不明显，狭披针形，长2.2-2.6厘米，近直立或稍斜伸，外面疏生柔毛，外轮三片在基部外侧的囊呈距状；

雄蕊和雌蕊通常不伸出花被外；子房无毛。蒴果点垂。花果期（7-）10-11月。

Stem sometimes branched, usually flexuous, 25--80 cm, glabrous or slightly pubescent distally. Leaves oblanceolate or narrowly elliptic-oblanceolate to obovate, 8--13 × 2.5--4.5 cm, adaxially glabrescent, abaxially pubescent particularly along veins, base usually narrowed and subcuneate, margin ciliate, apex acuminate.

Cymes terminal and also axillary in distal part of stem, laxly several flowered; pedicels 1--6 cm, pubescent or glabrous. Flowers trumpet-shaped. Tepals purple-white, with purple spots adaxially, lanceolate, oblanceolate, or oblong, 2--4 cm × 4--11 mm, abaxially usually laxly pubescent; outer ones basally saccate. Stamens usually included. Ovary glabrous. Style subequaling stigmatic lobes. Capsule 2.5--3.5 × 5--6 mm. Fl. and fr. (?Apr--)Oct--Nov.

Forests, thickets, shaded places, roadsides; near sea level to 3000 m. Taiwan.

1 Stem usually less than 30 cm; inflorescence glandular 3b var. glandosa 小型油点草 + Stem 45--80 cm; inflorescence pubescent or glabrous. (2)

2(1) Tepals 2--2.5 cm; pedicel pubescent 3a var. formosana 台湾油点草 (原变种)

+ Tepals 3--4 cm; pedicel glabrous 3c var. grandiflora 大花油点草

分类文献

Tricyrtis formosana Baker in Journ. Linn. Soc. Bot. 17: 465. 1879.