Iris dichotoma: Difference between revisions
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Allow pods to dry on plant; break open to collect seeds |
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<ref name=daves>{{cite web |title= |
<ref name=daves>{{cite web |title=Species Iris, Vesper Iris, Iris dichotoma |url=https://davesgarden.com/guides/pf/go/1289/#b |accessdate=1 January 2020}}</ref> |
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One of the parents of "Candy Lily,” “Vesper Iris” is native to Central Asia and China. An abundant bloomer, the 1” flowers begin to open in late afternoon & put on quite a show, fully opening in just a couple of minutes. Flowering lasts for a good 3 - 4 weeks. The blooms are usually in shades of violet, atop 4’ plants, and appear somewhere between May & midsummer. Hardy to Zone 6. Well drained soil is best. Rare in the trade. |
One of the parents of "Candy Lily,” “Vesper Iris” is native to Central Asia and China. An abundant bloomer, the 1” flowers begin to open in late afternoon & put on quite a show, fully opening in just a couple of minutes. Flowering lasts for a good 3 - 4 weeks. The blooms are usually in shades of violet, atop 4’ plants, and appear somewhere between May & midsummer. Hardy to Zone 6. Well drained soil is best. Rare in the trade. |
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during bloom season |
during bloom season |
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<ref name=>{{cite web |title=Pardanthopsis dichotoma, “Vesper Iris” |url= http://www.anniesannuals.com/signs/p%20-%20r/pardanthopsis_dichotoma_vi.htm |publisher=Annie's annuals.com |accessdate=1 January 2020}}</ref> |
<ref name=>{{cite web |title=Pardanthopsis dichotoma, “Vesper Iris” |url= http://www.anniesannuals.com/signs/p%20-%20r/pardanthopsis_dichotoma_vi.htm |publisher=Annie's annuals.com |accessdate=1 January 2020}}</ref> |
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Iris dichotoma Pallas, Reise Russ. Reich. 3: 712. 1776. |
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野鸢尾 ye yuan wei |
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Pardanthopsis dichotoma (Pallas) Lenz. |
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Rhizomes erect, brown, very short, stout. Roots long, thick. Leaves in basal fans and alternate on flowering stems proximally, grayish green, sword-shaped, slightly curved, 15--35 × 1.5--3 cm, midvein absent. Flowering stems dichotomously branched, 40--60 cm, leafy; spathes 4 or 5, green, lanceolate, 1.5--2.3 cm, 3- or 4-flowered, apex obtuse. Flowers violet, pale blue, or cream with purplish brown markings, 4--4.5 cm in diam., spiralling after anthesis; pedicel exserted from spathes, 2--3.5 cm, stiff, persistent. Perianth tube extremely short; outer segments broadly oblanceolate, 3--3.5 × ca. 1 cm, claw striped with yellowish brown, limb with darker spots on a central, pale patch; inner segments narrowly obovate, ca. 2.5 cm × 6--8 mm, apex retuse. Stamens 1.6--1.8 cm. Ovary green, ca. 1 cm. Style branches flat, ca. 2.5 cm. Capsule yellowish green, cylindric, 3.5--5 × 1--1.2 cm. Seeds dark brown, elliptic, with small wings. Fl. Jul--Aug, fr. Aug--Sep. 2 n = 32*. |
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Quercus forests, sandy grasslands, dry sunny areas; 200--2300 m. Anhui, Gansu, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangxi, Jilin, Liaoning, Nei Mongol, Ningxia, Shaanxi, Shandong, Shanxi, Yunnan [Korea, Mongolia, Russia]. |
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This species was treated by Goldblatt et al. (in Kubitzki, Fam. Gen. Vasc. Pl. 3: 326. 1998) under Pardanthopsis (Hance) Lenz, a monospecific genus between Iris and Belamcamda www.efloras.org |
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<ref name=efloras>{{cite web|title=Iris dichotoma Pallas|url=http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200028165 |
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|publisher= |=2 January 2020}}</ref> |
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==References== |
==References== |
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Revision as of 23:35, 2 January 2020
| Iris dichotoma | |
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| Iris dichotoma | |
Iris dichotoma (also known as 'Vesper Iris') was formerly known as Pardanthopsis dichotoma. Is a species in the genus Iris, it is also in the subgenus of Iris.
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The flowers of vesper iris open in the late afternoon over a period of several minutes, just about the time the sound of evening vespers might have wafted over an old monastery garden. It is a valuable addition to the garden also because of its late blooming season (high summer into early fall) and for its ability to bloom from seed started the same spring. The vesper iris has typical iris-looking leaf fans and abundantly branched, willowy bloom stalks rising to 4 feet. The inch-wide flowers range in color from pure white to violet.
Noteworthy Characteristics Late blooming season for an iris relative; beautiful flowers; easy from seed. Short-lived perennial.
Care Best in full sun and fertile, loamy soil. Keep well watered and fertilized, especially if first-summer bloom is a goal.
Propagation Plants produce abundant seed. Sow in pots or flats and refrigerate for 4 to 6 weeks. After coming out of cold storage, seeds will germinate in a week or two. Transplant seedlings outdoors after the threat of frost has passed.[1]
Family: Iridaceae (eye-rid-AY-see-ee) (Info) Genus: Iris (EYE-ris) (Info) Species: dichotoma (dy-KAW-toh-muh) (Info) Synonym: Evansia dichotoma Synonym: Evansia vespertina Synonym: Iris pomeridiana Synonym: Pardanthopsis dichotoma Synonym: Pardanthus dichotomus
Height: 36-48 in. (90-120 cm)
Spacing: 18-24 in. (45-60 cm)
Hardiness: USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
Sun Exposure: Full Sun
Danger: Parts of plant are poisonous if ingested
Bloom Color: Lavender
White/Near White Soil pH requirements: 6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
] Propagation Methods: By dividing rhizomes, tubers, corms or bulbs (including offsets)
Seed Collecting: Allow pods to dry on plant; break open to collect seeds [2]
One of the parents of "Candy Lily,” “Vesper Iris” is native to Central Asia and China. An abundant bloomer, the 1” flowers begin to open in late afternoon & put on quite a show, fully opening in just a couple of minutes. Flowering lasts for a good 3 - 4 weeks. The blooms are usually in shades of violet, atop 4’ plants, and appear somewhere between May & midsummer. Hardy to Zone 6. Well drained soil is best. Rare in the trade.
Full sun Regular water Perennial during bloom season [3]
Iris dichotoma Pallas, Reise Russ. Reich. 3: 712. 1776. 野鸢尾 ye yuan wei
Pardanthopsis dichotoma (Pallas) Lenz.
Rhizomes erect, brown, very short, stout. Roots long, thick. Leaves in basal fans and alternate on flowering stems proximally, grayish green, sword-shaped, slightly curved, 15--35 × 1.5--3 cm, midvein absent. Flowering stems dichotomously branched, 40--60 cm, leafy; spathes 4 or 5, green, lanceolate, 1.5--2.3 cm, 3- or 4-flowered, apex obtuse. Flowers violet, pale blue, or cream with purplish brown markings, 4--4.5 cm in diam., spiralling after anthesis; pedicel exserted from spathes, 2--3.5 cm, stiff, persistent. Perianth tube extremely short; outer segments broadly oblanceolate, 3--3.5 × ca. 1 cm, claw striped with yellowish brown, limb with darker spots on a central, pale patch; inner segments narrowly obovate, ca. 2.5 cm × 6--8 mm, apex retuse. Stamens 1.6--1.8 cm. Ovary green, ca. 1 cm. Style branches flat, ca. 2.5 cm. Capsule yellowish green, cylindric, 3.5--5 × 1--1.2 cm. Seeds dark brown, elliptic, with small wings. Fl. Jul--Aug, fr. Aug--Sep. 2 n = 32*.
Quercus forests, sandy grasslands, dry sunny areas; 200--2300 m. Anhui, Gansu, Hebei, Heilongjiang, Henan, Hubei, Hunan, Jiangxi, Jilin, Liaoning, Nei Mongol, Ningxia, Shaanxi, Shandong, Shanxi, Yunnan [Korea, Mongolia, Russia].
This species was treated by Goldblatt et al. (in Kubitzki, Fam. Gen. Vasc. Pl. 3: 326. 1998) under Pardanthopsis (Hance) Lenz, a monospecific genus between Iris and Belamcamda www.efloras.org [4]
References
- ^ "Vesper iris Pardanthopsis dichotoma". fine gardening.com. Retrieved 1 January 2020.
{{cite web}}: line feed character in|title=at position 12 (help) - ^ "Species Iris, Vesper Iris, Iris dichotoma". Retrieved 1 January 2020.
- ^ "Pardanthopsis dichotoma, "Vesper Iris"". Annie's annuals.com. Retrieved 1 January 2020.
- ^ "Iris dichotoma Pallas".
{{cite web}}: Unknown parameter|=ignored (help)