Difference between revisions of "Iris prismatica"
Fl. Amer. Sept. 1: 30. 1814.
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|common_names=Slender blue iris | |common_names=Slender blue iris | ||
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| + | |code=E | ||
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name=Iris prismatica | name=Iris prismatica | ||
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|authority=Pursh | |authority=Pursh | ||
|rank=species | |rank=species | ||
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|publication title=Fl. Amer. Sept. | |publication title=Fl. Amer. Sept. | ||
|publication year=1814 | |publication year=1814 | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V26/V26_810.xml |
|genus=Iris | |genus=Iris | ||
|subgenus=Iris subg. Limniris | |subgenus=Iris subg. Limniris | ||
Latest revision as of 22:17, 5 November 2020
Rhizomes superficial or only slightly buried in peaty soil, cordlike portions usually 1-branched, 40 cm × 2–5 mm, bearing scalelike leaves at nodes; nodal roots absent. Stems simple or 1–2-branched, 3–8 dm. Leaves: basal with blade slightly ribbed, 3–6 dm × 0.2–0.5 cm; cauline 1–4, erect. Inflorescence units 1–3-flowered, branch units 1–2-flowered; spathes pale brown, narrowly lanceolate, 2–4 cm, scarious or partially membranaceous. Flowers: perianth pale blue or blue-violet; floral tube 0.2–0.3 cm; sepals pale violet, veined deep violet basally, ovate, 4–5 × 1.3–2 cm, base abruptly attenuate; petals lavender, oblanceolate, 3.5–4.5 × 0.7–1.5 cm; ovary trigonal, sharply angled; style arched, narrow, 2–3 cm, crests divergent, quadrate, 0.5–0.7 cm, margins serrate; stigmas sharply triangular; pedicel somewhat flattened, 3–7 cm, exserted from spathe. Capsules sharply 3-angled, almost winged, 3–4 × 1.2–1.4 cm, concave faces 6–14 mm wide. Seeds in 1 row per locule, buff to dark brown, pyriform, with convex sides, 3–4 mm, smooth. 2n = 42.
Phenology: Flowering Apr–Jul.
Habitat: Swampy, peaty soil
Distribution
Ala., Conn., Del., Ga., Ky., Maine, Md., Mass., N.H., N.J., N.Y., N.C., R.I., S.C., Tenn., Va.
Discussion
Selected References
None.