玉蝉花Iris ensata

中文名(Chinese Name):玉蝉花
学名(Scientific Name):Iris ensata Thunb.
英文名(English Common Name):Japanese iris
别名(Chinese Common Name):紫花鸢尾
异名(Synonym):Iris laevigata var. kaempferi (Siebold ex Lem.) Maxim.  Iris ensata var. spontanea (Makino) Nakai  Iris kaempferi Siebold ex Lem.  Iris kaempferi var. spontanea Makino  Joniris longifolia Klatt  Joniris doniana (Spach) Klatt  Iris caricifolia Pall. ex Link  Iris doniana Spach  Xiphion donianum (Spach) Alef.  Limniris ensata (Thunb.) Rodion.  Iris ensata f. alba Y.N.Lee  Iris kaempferi var. hortensis (Maxim.) Makino  Iris laevigata var. hortensis Maxim.
科属(Family & Genus):鸢尾科(Iridaceae)鸢尾属
形态特征(Description):多年生草本,植株基部围有叶鞘残留的纤维。根状茎粗壮,斜伸,外包有棕褐色叶鞘残留的纤维;须根绳索状,灰白色,有皱缩的横纹。叶条形,长30-80厘米,宽0.5-1.2厘米,顶端渐尖或长渐尖,基部鞘状,两面中脉明显。花茎圆柱形,高40-100厘米,实心,有1-3枚茎生叶;苞片3枚,近革质,披针形,长4.5-7.5厘米,宽0.8-1.2厘米,顶端急尖、渐尖或钝,平行脉明显而突出,内包含有2朵花;花深紫色,直径9-10厘米;花梗长1.5-3.5厘米;花被管漏斗形,长1.5-2厘米,外花被裂片倒卵形,长7-8.5厘米,宽3-3.5厘米,爪部细长,中央下陷呈沟状,中脉上有黄色斑纹,内花被裂片小,直立,狭披针形或宽条形,长约5厘米,宽约5-6毫米;雄蕊长约3.5厘米,花药紫色,较花丝长;花柱分枝扁平,长约5厘米,宽0.7-1厘米,紫色,略呈拱形弯曲,顶端裂片三角形,有稀疏的牙齿,子房圆柱形,长1.5-2 厘米,直径约3毫米。蒴果长椭圆形,长4.5-5.5 厘米,宽1.5-1.8 厘米,顶端有短喙,6条肋明显,成熟时自顶端向下开裂至1/3处;种子棕褐色,扁平,半圆形,边缘呈翅状。花期6-7月,果期8-9月。
分布(Distribution):产东北、山东、浙江。生于沼泽地或河岸的水湿地。朝鲜、日本及俄罗斯也有。
用途(Use):
引自中国植物志英文版FOC Vol. 24 Page 302
Iris ensata Thunberg, Trans. Linn. Soc. London, Bot. 2: 328. 1794.
玉蝉花 yu chan hua | Iridaceae  | Iris
Iris ensata var. spontanea (Makino) Nakai; I. kaempferi Siebold ex Lemaire; I. kaempferi var. spontanea Makino; I. laevigata Fischer var. kaempferi (Siebold ex Lemaire) Maximowicz.
Rhizomes creeping, thick. Leaves linear, 30--80 cm × 5--12 mm, midvein distinct on both surfaces, apex acuminate. Flowering stems 25--100 cm, solid, 1--3-leaved; spathes 3, lanceolate, unequal, 4.5--7.5 × 0.8--1.2 cm, leathery, 2-flowered, veins distinct, raised, basal spathe shorter, apex usually acute, apical spathe longer, apex usually obtuse. Flowers dark reddish purple, 9--10 cm in diam.; pedicel 1.5--3.5 cm. Perianth tube 1.5--2 cm; outer segments obovate, mottled yellow at center, 7--8.5 × 3--3.5 cm; inner segments erect, narrowly lanceolate, ca. 5 cm × 5--6 mm. Stamens ca. 3.5 cm; anthers purple. Ovary cylindric, 1.5--2 cm × ca. 3 mm. Style branches purple, ca. 5 cm × 7--10 mm. Capsule ellipsoid, 4.5--5.5 × 1.5--1.8 cm, 6-ribbed, apex shortly beaked. Seeds maroon-brown, semiorbicular, flat. Fl. Jun--Jul, fr. Aug--Sep. 2 n = 24*.
Damp areas along rivers and near lakes; 400--1700 m. Heilongjiang, Jilin, Liaoning, Shandong, Zhejiang [Japan, Korea, Russia].
Iris ensata is commonly cultivated in China in a wide range of forms, which have been included under var. hortensis Makino & Nemoto.
玉蝉花Iris ensata

玉蝉花Iris ensata(责任编辑:徐晔春)

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