Iris fernaldii |
Iris longipetala |
|
---|---|---|
Fernald's iris |
coast iris, long-petal iris |
|
Rhizomes | many-branched, producing dense clumps, compact, slender, ca. 0.6 cm diam., base covered with remains of old leaves; roots fibrous. |
with short, creeping branches, stout, 2–2.5 cm diam., covered with bases of old leaves; roots numerous, fleshy. |
Stems | simple, solid, 2–4 dm. |
simple or 1–2-branched, solid, 3–6 dm. |
Leaves | basal with blade gray-green, usually brilliantly colored basally, drying to unusual gray-green, veins fairly prominent, to 4 dm × 0.7–0.8 cm, often quite glaucous, margins not thickened; cauline 2–several, spreading, sheathing stem for about 1/2 length, foliaceous, blade not inflated. |
basal persistent, blade dark green, turning gray or yellow-brown when drying, veins not prominent, linear, 4–7 dm × 0.6–1 cm, usually longer than stem, glaucous or subglaucous, apex acute; cauline 2–3, reduced. |
Inflorescence units | 2-flowered; spathes opposite, connivent, often flushed red basally, broadly lanceolate, 5–9 cm × 6–11 mm, subequal. |
3–6-flowered; spathes distant, inner sometimes 10 cm distal to outer, green, narrowly linear-lanceolate, 8–15 cm × 20–40 mm, herbaceous, margins and apex scarious. |
Flowers | perianth pale creamy yellow with gold or gray veins; floral tube funnelform, 3–6.2 cm, spreading apically to form wide throat; sepals horizontally spreading, claw with deep yellow median line, oblanceolate to spatulate, 4.5–7 × 1–2 cm, base gradually attenuate into broad claw; petals narrowly oblanceolate, 4.3–6 × 0.6–1.4 cm, base gradually attenuate into narrow claw; ovary elliptical, nearly circular in cross section, 1.5–2.3 cm; style 2.2–3 cm, crests divergent, linear to narrowly oblong, 1–1.7 cm; stigmas triangular, margins entire; pedicel 0.9–2.2 cm at anthesis. |
perianth pale blue-violet or nearly white, with lilac-purple veins; floral tube funnelform, 0.5–1.3 cm; sepals spreading, then drooping at apex, white, flecked and veined with violet, obovate, 8–10 × 3–5 cm, base attenuate into narrow claw with prominent yellow ridge, signal a yellowish basal patch; petals semierect, oblong, 8–9 × 1.5–2 cm, base gradually attenuate, apex emarginate, bluntly rounded; ovary trigonal with central ridge in each face, 2–5 cm; style narrow basally, widening distally, 3.5–4 × 0.6–1 cm, crests overlapping basally, subquadrate, 1–1.5 cm, margins incised; stigmas obscurely to prominently 2-lobed, margins crenate; pedicels stout, 3–9 cm, unequal at anthesis, becoming ± equal at maturity. |
Capsules | oblong, roundly trigonal, distinctly beaked, 2.5–3.5 cm. |
6-ribbed, oblong-ovoid, tapering to either end, almost round in cross section, 8–9 cm. |
Seeds | dark brown, wrinkled. |
dark brown, globular, wrinkled. |
2n | = 40. |
= 86, 88. |
Iris fernaldii |
Iris longipetala |
|
Phenology | Flowering Apr–Jul. | Flowering Mar–Apr. |
Habitat | Mixed evergreen forest | Wet, heavy soil along coast |
Distribution |
CA
|
CA
|
Discussion | Iris fernaldii hybridizes with I. douglasiana, I. innominata, and I. macrosiphon. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Iris longipetala hybridizes with I. missouriensis and is found from Mendocino County south to Monterey. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 26, p. 387. | FNA vol. 26, p. 389. |
Parent taxa | Iridaceae > Iris > subg. Limniris > sect. Limniris > ser. Californicae | Iridaceae > Iris > subg. Limniris > sect. Limniris > ser. Longipetalae |
Sibling taxa | ||
Name authority | R. C. Foster: Iridis Sp. Nov., 1. (1938) | Herbert: in W. J. Hooker and G. A. W. Arnott, Bot. Beechey Voy., 395. (1840) |
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