Iris verna |
Iris sect. Limniris |
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dwarf violet iris |
beardless iris |
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Rhizomes | heterogeneous, whitish, cordlike portions 0.1–1.5 dm × 2–4 mm, enlarging to 6–8 mm diam., densely covered with brown, scalelike leaves, roots absent, or torulose with roots borne along entire rhizome. |
usually homogeneous (heterogeneous in ser. Prismaticae; heterogeneous or torulose in ser. Vernae), spreading or compact. |
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Stems | simple, 5–15 cm. |
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Leaves | basal with blade light green, ensiform, 0.3–1.5 dm × 0.3–1.3 cm, enlarging to 3.5 dm, glaucous; cauline 5–9, sheathing, imbricate, blade light green, obovate, 1.3–5 cm, increasing in length, proximal shortest, membranous, apex acute. |
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Inflorescence units | 1–2-flowered; spathes divergent, exposing floral tube, green, lanceolate, 2–2.5 cm, apex acuminate. |
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Flowers | floral tube pale violet, filiform, 2.5–6.5 cm, expanding somewhat distally to 2.5–4 cm diam.; sepals widely spreading, blue to violet with yellow or orange longitudinal papillose band at base of blade, obovate, 2–6 × 0.8–2 cm, base gradually attenuate into claw, not crested; petals erect, arching inward at tip, spatulate, 2–7 × 1–2 cm, base abruptly attenuate into claw; ovary linear, to 1.3 cm; styles pale violet, 2.5–4 cm, crests linear-acute, narrow, 0.7 cm; stigmas rounded, margins entire; pedicel 1–3 cm, increasing to 25 cm as capsule matures. |
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Capsules | 3-angled with single ridge at each angle, almost hidden in bases of spathes, 1–3.2 × 0.8–1.5 cm, tapering into beak consisting of dried remnant of floral tube. |
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Seeds | dark brown, ribbed, 2.8–3.2 mm, lustrous, with small, fleshy aril basally. |
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Sepals | with signal of conspicuous lines or patch of contrasting color. |
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Iris verna |
Iris sect. Limniris |
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Distribution |
se United States
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North America; Eurasia |
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Discussion | Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Species ca. 70 (28 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 26, p. 379. | FNA vol. 26. | ||||
Parent taxa | Iridaceae > Iris > subg. Limniris > sect. Limniris > ser. Vernae | Iridaceae > Iris > subg. Limniris | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Neubeckia verna | |||||
Name authority | Linnaeus: Sp. Pl. 1: 39. (1753) | Tausch: Hort. Canal. 1. (1823) | ||||
Web links |