Iris savannarum Small

Species

Angiosperms > Asparagales > Iridaceae > Iris

Characteristics

Rhizomes greenish, freely branching, forming large, open clumps, 2–2.5 cm diam., fleshy, with fibrous bases of old leaves not covering rhizome but persisting on ringlike scars. Stems 1-branched, solid, 3–10 dm. Leaves: basal usually dying back shortly after anthesis, blade bright green, 6–10 dm × 0.8–2 cm, sometimes glaucescent; cauline with blade elongate, linear-attenuate, 15–20 cm, exceeding flowers. Inflorescence units 1–3-flowered, branch units 1–2-flowered; spathes lanceolate, subequal or unequal, apex acute; outer 8–10 cm, herbaceous, margins scarious; inner 6–9 cm, completely scarious. Flowers: perianth blue to blue-violet (white in forma albispiritis); floral tube funnelform, 1.2–1.5 cm; sepals blue or pale violet with flecks of white and lines of deeper blue on either side of ridge, spatulate, elliptic to ovate, 7–8 cm, apex acuminate, ridge yellow, linear, extending to about middle of limb, finely pubescent, claw light green, striated, ribbed, 1–1.2 cm; petals erect or spreading-erect, deep blue, linear to narrowly linear-spatulate, 6–7.5 cm, base abruptly attenuate into claw, claw channeled, green with darker lines, margins pale; ovary bluntly 3-angled, ridged at each angle and on faces between angles; style linear-acute, 5–6 cm; crests ovate, 1–2 cm, margins sharply and irregularly toothed; stigmas broadly 2-lobed, margins crenate; pedicel 1.6–2 cm. Capsules ellipsoid, round in cross section, roundly 6-lobed, with 6 sharp, winglike, equally spaced ridges converging to form stout beak at apex, 6–10 cm, dehiscence loculicidal. Seeds in 1 row per locule, brown, circular or uneven, flattened, 8–12 mm diam, very corky. 2n = 44.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 7-9
Soil humidity 1-5
Soil texture 3-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 30 - 545
Germination temperacture (C°) 15 - 21
Germination luminosity -
Germination treatment stratification
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Iris savannarum unspecified picture

Distribution

Iris savannarum world distribution map, present in Åland Islands, Georgia, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:130139-2
WFO ID wfo-0000783830
COL ID 3Q23Y
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Iris albispiritus Iris rivularis Iris savannarum Iris kimballiae Phaeiris albispiritus Phaeiris savannarum Iris hexagona var. savannarum Iris savannarum var. kimballiae Iris savannarum f. albispiritus