Overview

Distribution

Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hainan, Hubei, Hunan, Jiangsu, Jiangxi, Qinghai, Shaanxi, Shanxi, Sichuan, Xizang, Yunnan, Zhejiang [Japan, Korea, ?Myanmar].
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Physical Description

Morphology

Description

Rhizomes creeping, thick. Roots slender. Leaves mainly in basal fans, yellowish green, broadly sword-shaped, curved, 15--50 × 1.5--3.5 cm, base surrounded by fibers. Flowering stems 1- or 2-branched, 20--40 cm, 1- or 2-leaved; spathes 2 or 3, green, lanceolate, 3.5--7.5 × 2--2.5 cm, 1- or 2-flowered, apex acuminate. Flowers bluish violet, ca. 10 cm in diam.; pedicel to 1 cm. Perianth tube slender, to 3 cm; outer segments mottled darker around conspicuous, white, irregularly toothed crest, broadly ovate, 5--7 × ca. 4 cm, apex retuse; inner segments spreading horizontally at anthesis, elliptic, 4.5--5 × ca. 3 cm. Stamens ca. 2.5 cm; anthers bright yellow. Ovary cylindric, 1.8--2 cm. Style branches pale bluish violet, ca. 3.5 cm. Capsule ellipsoid or obovoid, 4.5--6 × 2--2.5 cm. Seeds black-brown, pyriform, with very small aril. Fl. Apr--May, fr. Jun--Aug. 2 n = 24, 28, 32.
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Diagnostic Description

Synonym

Iris chinensis Bunge (1833), not Curtis (1797); I. rosthornii Diels.
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Ecology

Habitat

Forest margins, sunny banks, meadows, damp places, beside water; 500--3500 m.
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Iris tectorum

The following is a representative barcode sequence, the centroid of all available sequences for this species.


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Statistics of barcoding coverage: Iris tectorum

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 2
Specimens with Barcodes: 14
Species With Barcodes: 1
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Wikipedia

Iris tectorum

Wall Iris (Iris tectorum) is a native of China, growing on forest edges, meadows, sunny banks, at 500 to 3,500 m (1,600 to 11,500 ft) elevation. Its native habitat is uncertain because it is widely cultivated in China, Bhutan (where it has naturalized), and India. It spreads with creeping rhizomes and has bluish-violet flowers. A white flowered variety has been named Iris tectorum f. alba (Dykes).[1]

See also

Notes


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Notes

Comments

White-flowered plants have been recognized as Iris tectorum f. alba (Dykes) Makino (Ill. Fl. Nipp. 714. 1940, based on I. tectorum var. alba Dykes, Gen. Iris, 103. 1913). The native distribution and ecology of I. tectorum are uncertain because the species is very widely cultivated and naturalized in China. It is also cultivated in Bhutan (where it has become naturalized), and India.
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