Skip Navigation
Sign In
  • Home
  • Search
    • Search Collections
    • Map Search
  • Chicago Botanic Garden
    • Project Information
    • Checklists
    • Create a Checklist
    • Dynamic Key
  • Denver Botanic Gardens
    • Project Information
    • Checklists
    • Create a Checklist
    • Dynamic Key
  • Desert Botanical Garden
    • Project Information
    • Checklists
    • Create a Checklist
    • Dynamic Key
  • NY Botanical Garden
    • Project Information
    • Checklists
    • Create a Checklist
    • Dynamic Key
  • Marie Selby Botanical Gardens
    • Project Information
    • Checklists
    • Create a Checklist
    • Dynamic Key
  • Sitemap

Iris tenuissima

Iris tenuissima Dykes  
Family: Iridaceae
Long-Tube Iris
Iris tenuissima image
  • FNA
  • Resources
Norlan C. Henderson in Flora of North America (vol. 26)
Rhizomes freely branching, producing dense clumps, slender, 0.5-0.7 cm diam., covered with bases of old leaves; roots fibrous. Stems simple, solid, 2-3 dm. Leaves: basal with blade sometimes pink to red basally, finely ribbed, linear, 3-3.5 dm × 0.5 cm, subglaucous, margins not thickened, apex acute; cauline 1-3, imbricated, mostly free, bractlike, blade linear-lanceolate, inflated. Inflorescence units (1-)2-flowered; spathes often flushed with pink or red, lanceolate, 4-8 cm × 5-10 mm, subequal or unequal and inner somewhat longer than outer, rigid, apex acuminate. Flowers: perianth pale cream with distinct veins of lavender, reddish brown, or brown, margins often distinctly crisped; floral tube funnelform, 3-5.8 cm, slender, then expanding abruptly to base of flower; sepals spreading outward from base and remaining in horizontal position for entire length, narrowly lanceolate to oblanceolate, 4-6.5 × 1.1-1.8 cm, base attenuate into long claw; petals somewhat spreading, not strictly erect, 4.5-6.5 × 0.6-1.4 cm, base gradually attenuate; ovary 1-2 cm, gradually tapering to each end; style 2-3 cm, crests linear, undulate near tip, 1-2.5 cm; stigmas triangular; pedicel 0.8-1.8 cm at anthesis. Capsules oblong, round in cross section, 3-4 cm, base abruptly attenuate into pedicel, apex gradually acuminate into distinct beak apically. Seeds grayish brown, pyriform to oval, 3 mm, wrinkled. 2n = 40.

Flowering Jun--Jul. Dry, sunny woods; Calif.

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

Iris tenuissima
Open Interactive Map
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Iris tenuissima image
Click to Display
75 Total Media
Institute for Museum and Library Services KU BI Logo Logo for the Biodiversity Knowledge Integration Center

This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].

EcoFlora is part of the SEINet Portal Network. Learn more here.

Powered by Symbiota.