View source for Iris savannarum

{{Treatment/ID
|accepted_name=Iris savannarum
|accepted_authority=Small
|publications={{Treatment/Publication
|title=Addisonia
|place=9: 57, plate 317. 1925
|year=1925
}}
|common_names=Prairie iris
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Iris albispiritus
|authority=Small
|rank=species
}} {{Treatment/ID/Synonym
|name=Iris hexagona var. savannarum
|authority=(Small) R. C. Foster
|rank=variety
}} {{Treatment/ID/Synonym
|name=Iris kimballiae
|authority=Small
|rank=species
}} {{Treatment/ID/Synonym
|name=Iris rivularis
|authority=Small
|rank=species
}}
|hierarchy=Iridaceae;Iris;Iris subg. Limniris;Iris sect. Limniris;Iris (sect. Limniris) ser. Hexagonae;Iris savannarum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Iridaceae]]</div><div class="higher-taxon"><small>genus</small>[[Iris]]</div><div class="higher-taxon"><small>subgenus</small>[[Iris subg. Limniris]]</div><div class="higher-taxon"><small>section</small>[[Iris sect. Limniris]]</div><div class="higher-taxon"><small>series</small>[[Iris (sect. Limniris) ser. Hexagonae]]</div><div class="higher-taxon"><small>species</small>[[Iris savannarum]]</div></div>
|volume=Volume 26
|mention_page=page 374, 392, 394
|treatment_page=page 393
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Rhizomes </b>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. <b>Stems</b> 1-branched, solid, 3–10 dm. <b>Leaves</b>: 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. <b>Inflorescence</b> 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. <b>Flowers</b>: 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. <b>Capsules</b> 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. <b>Seeds</b> in 1 row per locule, brown, circular or uneven, flattened, 8–12 mm diam, very corky. <b>2n</b> = 44.</span><!--

-->{{Treatment/Body
|phenology=Flowering late Mar–early Apr.
|habitat=Wet ditches, margins of lakes, streams, and swamps
|distribution=Ala.;Fla.;Ga.
|discussion=<p><i>Iris savannarum</i> has often been included in <i>I. hexagona</i>, but differs in several ways. The capsules of <i>I. hexagona</i> are more obviously hexagonal, with smooth faces alternating with those that have two rounded lobes, whereas the capsules of <i>I. savannarum</i> are more rounded but with six obvious ridges, almost of winglike proportions. <i>Iris hexagona</i> has yellow-green leaves instead of the brighter green of <i>I. savannarum</i>. The leaves of <i>I. savannarum</i> die back after anthesis, while those of <i>I. hexagona</i> remain green. The flowering period of <i>I. savannarum</i> is almost one month earlier than that of <i>I. hexagona</i> in the area where both are known to grow. The sepals of <i>I. savannarum</i> are more acute at the apex than those of <i>I. hexagona</i>.</p><!--
--><p><i>Iris savannarum</i> has been hybridized with <i>Iris fulva</i> to produce I. ×cacique (J. Berry) N. C. Henderson.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Iris savannarum
|authority=Small
|rank=species
|parent rank=series
|synonyms=Iris albispiritus;Iris hexagona var. savannarum;Iris kimballiae;Iris rivularis
|basionyms=
|family=Iridaceae
|phenology=Flowering late Mar–early Apr.
|habitat=Wet ditches, margins of lakes, streams, and swamps
|distribution=Ala.;Fla.;Ga.
|reference=None
|publication title=Addisonia
|publication year=1925
|special status=Illustrated;Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V26/V26_805.xml
|genus=Iris
|subgenus=Iris subg. Limniris
|section=Iris sect. Limniris
|series=Iris (sect. Limniris) ser. Hexagonae
|species=Iris savannarum
}}<!--

-->[[Category:Treatment]][[Category:Iris (sect. Limniris) ser. Hexagonae]]