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■ (SPEC) Iris westii Dinsm.

1933, botanical author Dinsmore

Iris westii Dinsmore. ( John E. Dinsmore, 1933, Lebanon); Section Oncocyclus; height 12" (30 cm); Midseason bloom. Color Code-W8D; Standards pale lilac veined and dotted darker lilac blue; falls pale yellowish ground, heavily blotched and veined purplish or chocolate; signal patch deep velvety chocolate; sparse, long purple beard. Flora of Syria, Palestine & Sinai; Post. revis. Dinsm. 2: 596. Beirut 1933; Amer. Col. 1933; 1939; R., 1936; (Listed in 1939 checklist as a form of Iris susiana but restored to species status in Mathew's The Iris).

See below:
westii - Fragman-Sapir.jpgwestii - Mayr.jpg


Chaudhary, Kirkwood & Weymouth in Botaniska Notiser, 128(4): 406 (1975 publ. 1976) provide the following description: "Plants up to 30 cm. Rhizome medium, compact. Leaves 6-8, 1 cm wide or less, about 20 cm long, slightly falcate; stem leaf one or two. Peduncle 8-16 cm. Flowers 12.5-15 cm in diameter; valves about 11 cm, slightly inflated; ovary 3-4.5 cm, with a stalk about 1 cm; perianth tube 3-4 cm. Falls 5-8 cm long, 5-5.5 cm wide, elliptical-obovate, veins and spots prominently embossed, brown-purple to purple, the spots dense; signal spot about 1.5 cm long and wide, located in the middle of the fall; beard of long rather sparse purple hairs, rather wide, extending almost to the edges of the fall and to almost the lower edge of the signal spot. Standards 6-9 cm long, 5-6 cm wide, obovate-cuneate, gradually narrowed into a claw about 1 cm long; the limb orbiculate; lilac-blue veins and minute dots on a pale lilac ground, the dots becoming bigger and embossed towards the base. Anthers about 2 cm; filaments about 1.7 cm. Style branches horizontal-oblique (apparently not arched downwards as seen in the herbarium material), 6-6.5 cm long, about 3 cm wide, thickly dotted-streaked with brown-purple on a "wine-colored" ground; lobes upturned, dotted and veined like the falls; the width of the two lobes more than that of the style branch; pollinator tunnel is apparently mostly open, the fall and the style branch meeting only towards the basal area."


Registered as a cultivar WESTII ----

Chromosome counts






Distribution and Cultivation

Distribution: Region:


westii - Fragman-Sapir.jpgwestii - Mayr.jpg

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-- Main.RPries - 2010-02-03
I Attachment Action Size Date Who Comment
westii_-_Fragman-Sapir.jpgjpg westii_-_Fragman-Sapir.jpg manage 24 K 08 Feb 2010 - 16:14 Main.Betsy881 Photo by Fragman-Sapir
westii_-_Mayr.jpgjpg westii_-_Mayr.jpg manage 11 K 08 Feb 2010 - 16:14 Main.Betsy881 Photo by Mayr
Topic revision: r7 - 25 Aug 2016, BobPries
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