Difference between revisions of "Iris tenax"

Douglas ex Lindley

Edwards’s Bot. Reg. 15: plate 1218. 1829.

Common names: Tough-leaf iris Oregon flag
Synonyms: Iris gormanii Piper Iris tenax var. gormanii (Piper) R. C. Foster Iris tenax subsp. klamathensis L. W. Lenz
Treatment appears in FNA Volume 26. Treatment on page 383. Mentioned on page 374, 384, 385, 386, 387.
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|name=Iris gormanii
 
|name=Iris gormanii
 
|authority=Piper
 
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|name=Iris tenax var. gormanii
 
|name=Iris tenax var. gormanii
 
|authority=(Piper) R. C. Foster
 
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|name=Iris tenax subsp. klamathensis
 
|name=Iris tenax subsp. klamathensis
 
|authority=L. W. Lenz
 
|authority=L. W. Lenz
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|habitat=Dry soils in fields and open woods
 
|habitat=Dry soils in fields and open woods
 
|distribution=Calif.;Oreg.;Wash.
 
|distribution=Calif.;Oreg.;Wash.
|discussion=<p>Plants described as subsp. klamathensis differ from others of the species in having floral tubes 11–20 mm instead of 6–10 mm, style crests somewhat longer and narrower, and flower color and markings more like those of Iris bracteata or I. innominata. The latter species has an even longer floral tube, 15–30 mm, which could be evidence of introgression. Hybrids are known to occur in the area common to both species, in Douglas County, Oregon.</p><!--
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|discussion=<p>Plants described as subsp. klamathensis differ from others of the species in having floral tubes 11–20 mm instead of 6–10 mm, style crests somewhat longer and narrower, and flower color and markings more like those of <i>Iris bracteata</i> or <i>I. innominata</i>. The latter species has an even longer floral tube, 15–30 mm, which could be evidence of introgression. Hybrids are known to occur in the area common to both species, in Douglas County, Oregon.</p><!--
--><p>Iris tenax hybridizes with I. bracteata, I. chrysophylla, I. douglasiana, I. hartwegii, I. innominata, I. macrosiphon, I. purdyi, and I. tenuissima.</p>
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--><p><i>Iris tenax</i> hybridizes with <i>I. bracteata</i>, <i>I. chrysophylla</i>, <i>I. douglasiana</i>, <i>I. hartwegii</i>, <i>I. innominata</i>, <i>I. macrosiphon</i>, <i>I. purdyi</i>, and <i>I. tenuissima</i>.</p>
 
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|publication year=1829
 
|publication year=1829
 
|special status=
 
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse_grained_fna_xml/V26/V26_783.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V26/V26_783.xml
 
|genus=Iris
 
|genus=Iris
 
|subgenus=Iris subg. Limniris
 
|subgenus=Iris subg. Limniris

Revision as of 16:47, 18 September 2019

Rhizomes many-branched, not creeping, forming dense clumps, slender, 0.3–0.8 cm diam.; roots fibrous. Stems simple, somewhat angular, solid, 1.5–2.7 dm. Leaves: basal somewhat lax, overtopping stem, blade light green, paling to pink or straw color basally, finely ribbed, linear-acute to linear, ensiform, 4.5 dm × 0.5 cm, margins not thickened; cauline 1–3, sheathing for 1/2 length then spreading, foliaceous, blade linear-lanceolate, not inflated, narrow, reduced, to 15 cm. Inflorescence units 1–2-flowered; spathes distant basally by 3 cm in some cases, keeled, linear-lanceolate to lanceolate-acuminate, 5–7 cm × 2–4 mm, unequal, outer longer than inner, herbaceous, margins scarious. Flowers: perianth color variable, purple, pink, lavender, cream, yellow, or rarely white; floral tube funnelform, 0.6–2 cm; sepals veined with color of limb, obovate, 5.8–6 × 1.6–2 cm, base gradually attenuate into white claw with slight yellow ridge, apex emarginate to bluntly rounded; petals same color as sepals, not prominently veined, lanceolate to oblanceolate, 5 × 1 cm; ovary 1–2 cm, slightly wider distally, base very gradually attenuate; style 2.2–3.2 cm, crests subquadrate, 8–12 mm, margins crenate or incised; stigmas triangular, margins entire; pedicel 1–5 cm, longer in second flower (when present) than in first. Capsules oblong, triangular in cross section, prominently ribbed, beaked, 3–5 cm. Seeds brown, D-shaped to irregular, wrinkled.


Phenology: Flowering Jun–Aug.
Habitat: Dry soils in fields and open woods

Discussion

Plants described as subsp. klamathensis differ from others of the species in having floral tubes 11–20 mm instead of 6–10 mm, style crests somewhat longer and narrower, and flower color and markings more like those of Iris bracteata or I. innominata. The latter species has an even longer floral tube, 15–30 mm, which could be evidence of introgression. Hybrids are known to occur in the area common to both species, in Douglas County, Oregon.

Iris tenax hybridizes with I. bracteata, I. chrysophylla, I. douglasiana, I. hartwegii, I. innominata, I. macrosiphon, I. purdyi, and I. tenuissima.

Selected References

None.

Lower Taxa

None.
... more about "Iris tenax"
Norlan C. Henderson +
Douglas ex Lindley +
Iris subsect. Californicae +
Tough-leaf iris +  and Oregon flag +
Calif. +, Oreg. +  and Wash. +
Dry soils in fields and open woods +
Flowering Jun–Aug. +
Edwards’s Bot. Reg. +
Iris gormanii +, Iris tenax var. gormanii +  and Iris tenax subsp. klamathensis +
Iris tenax +
Iris (sect. Limniris) ser. Californicae +
species +