Iris innominata

L. F. Henderson

Rhodora 32: 23. 1930.

Common names: Del Norte County iris
Endemic
Treatment appears in FNA Volume 26. Treatment on page 387. Mentioned on page 374, 382, 383, 384, 385, 386.

Rhizomes freely branching, forming compact tufts, slender, 0.3–0.4 cm diam., covered with remains of old leaves; roots fibrous. Stems simple, solid, slender, 2–2.5 dm. Leaves: basal evergreen, abundant, blade dark, shining green on one side, lighter green on the other, pink to deep purple basally, 3.5 dm × 0.2–0.4 cm, longer than flowering-stem, margins not thickened; cauline 2–4, sheathing stem for about 2/3 length, foliaceous, spreading, blade not inflated, 4–9 cm. Inflorescence units 1 (–2) -flowered; spathes closely enclosing ovary and floral-tube, broadly lanceolate to ovate, 3.3–6 cm × 5–7 mm, herbaceous, margins scarious. Flowers: perianth usually dark golden yellow, cream, pink, lavender, or purple, heavily veined purple or brown; floral-tube 1.5–3 cm; sepals usually yellow with heavy veining, broadly oblanceolate, 4.5–6 × 1.7–3 cm, base gradually attenuate, margins often wavy; petals same color as sepals with lighter veining, narrowly oblanceolate, 4–5.7 × 0.9–1.6 cm, base gradually attenuate; ovary roundly triangular in cross-section, 1.5–1.8 cm; style 2–2.6 cm, crests overlapping, subquadrate to semiovate, 0.9–1.4 cm, margins irregularly toothed; stigmas triangular, margins entire; pedicel 0.4–1.3 cm at anthesis. Capsules oblong-oval, circular in cross-section, 2.5 × 1.2 cm. Seeds in 2 rows per locule, dark-brown, oval, sharply angled, 3 mm, wrinkled, pitted. 2n = 40.


Phenology: Flowering May–Jun.
Habitat: Dry, sunny woods

Discussion

Iris innominata hybridizes with I. bracteata, I. chrysophylla, I. douglasiana, I. fernaldii, I. macrosiphon, I. munzii, I. purdyi, and I. tenax. It is known only from southwestern Oregon and Del Norte County in northwestern California.

Selected References

None.

Lower Taxa

None.

"decreasing" is not a number."dm" is not declared as a valid unit of measurement for this property.

... more about "Iris innominata"
dehiscing +  and latrorse +
Norlan C. Henderson +
L. F. Henderson +
4 cm40 mm <br />0.04 m <br /> (5.7 cm57 mm <br />0.057 m <br />) +
attenuate +, oblanceolate +  and wavy +
0.9cm;1.6cm +
Iris subsect. Californicae +
pink +  and deep purple +
3.5 cm35 mm <br />0.035 m <br /> (?) +
not inflated +
4 cm40 mm <br />0.04 m <br /> (?) +  and 9 cm90 mm <br />0.09 m <br /> (?) +
0.2cm;0.4cm +
additional +
cordlike +
enlarging +
2.5 cm25 mm <br />0.025 m <br /> (?) +
oblong-oval +
1.2 cm12 mm <br />0.012 m <br /> (?) +
Del Norte County iris +
overlapping +
subquadrate +  and semiovate +
0.9cm +  and 1.4cm +
monochasial +
Calif. +  and Oreg. +
distinct or;partly completely connate +
hollow +  and solid +
ridged +  and terete +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
sessile +  and pedicellate +
fragrant +
upward-facing +
hollow +, solid +, branched +  and simple +
flattened +, terete +  and cordlike +
indehiscent +  and loculicidal +
woody;firm;cartilaginous +
Dry, sunny woods +
multicellular +
distinct +
cauline +  and basal +
scale-like +
distinct +
conspicuous +
triangular +  and rounded +
4.5cm;6cm +
toothed +, wavy +, attenuate +  and oblanceolate +
not thickened +
1.7cm;3cm +
triangular +
1.5 cm15 mm <br />0.015 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Brown (?) +, Purple (?) +, Veined (?) +, Pink (?) +, Cream (?) +, Yellow (?) +  and Dark golden (?) +
4 cm40 mm <br />0.04 m <br /> (18 cm180 mm <br />0.18 m <br />) +
differentiated +
reflexed +, spreading +  and erect +
reduced +
Flowering May–Jun. +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
heterogeneous +
tan;dark-brown +
conspicuously roughened +  and extensively corky +
4 +  and 20 +
pitted +  and wrinkled +
angled;oval +
reflexed +  and spreading +
expanding +
persisting +
3.3cm;6cm +
broadly lanceolate +  and ovate +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
monochasial +
foliaceous +, solid +  and simple +
slender +
triangular +
3-lobed +  and filiform +
2 cm20 mm <br />0.02 m <br /> (?) +  and 2.6 cm26 mm <br />0.026 m <br /> (?) +
Undefined subg. Limniris +
Iris innominata +
Iris (sect. Limniris) ser. Californicae +
species +
connate +  and distinct +
scarious +
spathaceous +  and more-flowered +
obscure;prominent +
hardened +  and papery +
unequal +