Iris macrosiphon |
Iris orientalis |
|
---|---|---|
bowltube iris, ground iris |
yellowband iris |
|
Rhizomes | many-branched, forming tufts, with fibrous remains of old leaves at nodes, slender, 0.6–0.8 cm diam.; roots few, fibrous. |
sparingly short-branched, forming dense clumps, 1–1.5 cm diam., hard, with old leaf bases at nodes; roots fleshy. |
Stems | simple, solid, almost absent or to 2.5 dm. |
slightly flattened, with 1–2 short branches, solid, 4–12 dm. |
Leaves | basal longer than stem, blade light green, finely veined, narrowly linear, 3–4 dm × 0.4–0.6 cm, glaucous, margins not thickened, apex acute; cauline 1–2, spreading, sheathing for about 1/2 length, foliaceous, blade not inflated, 0.7–1 dm. |
basal erect, blade with slight spiral twist and central ridge, 3.5–8 dm × 1–2 cm, stiff, harsh, fibrous, glaucous; cauline 2–3, 1–2 subtending floral clusters, blade reduced. |
Inflorescence units | (1–)2-flowered; spathes nearly opposite, connivent, linear-lanceolate, 4–9.5 cm × 4–6 mm, subequal or outer longer. |
clustered, 2–4-flowered; spathes white, 3–5 cm, subequal, papery. |
Flowers | perianth indigo, purple, lavender, white, cream, or yellow; floral tube linear, gradually dilating apically, 6 cm; sepals usually with fine, dark veins basally, becoming coarser on claw, oblanceolate or obovate, 3.9–7 × 2 cm, base abruptly attenuate into claw; petals oblanceolate, 3.5–6 × 0.5–1.6 cm, base gradually attenuate; ovary ovoid, ca. 1 cm; style 2–3.5 cm, crests overlapping, reflexed, semiovate, 0.8–1.8 cm, margins denticulate; stigmas triangular, margins entire; pedicel 1.5–2 cm. |
perianth white; floral tube funnelform, 1–2.5 cm; sepals spreading and arching downward, with large yellow basal area, broadly orbicular, 8–10 × 3–6 cm, apex rounded, deeply emarginate; petals white, spatulate, 4–6 × 1–1.5 cm, base gradually attenuate, apex emarginate; ovary triangular in cross section with 2 ribs at each angle, 2–2.5 cm; style white, with parallel sides, 4–5 cm, crests erect, triangular, 1–2 cm; stigmas 2-lobed; pedicel 2.5–7.5 cm. |
Capsules | oblong to ovoid, somewhat 3-angled in cross section, 2.5–3 cm. |
ovoid to oblong-elliptic, triangular in cross section, each angle 2-ribbed, 4–5 × 2–2.5 cm. |
Seeds | dark brown, angular, finely wrinkled. |
in 2 rows per locule, white, flattened or wedge-shaped, 4–5 mm, papery, wrinkled. |
2n | = 40. |
= 40. |
Iris macrosiphon |
Iris orientalis |
|
Phenology | Flowering Apr–Jun. | Flowering May–Jul. |
Habitat | Sunny hillsides, meadows, roadsides | Persisting after cultivation or discarded along roadsides |
Distribution |
CA
|
CA; CT; MO; expected elsewhere; Greece; Turkey [Introduced in North America] |
Discussion | Iris macrosiphon hybridizes with I. chrysophylla, I. douglasiana, I. fernaldii, I. hartwegii, I. innominata, I. munzii, I. purdyi, I. tenax, and I. tenuissima. The invalid name “Iris californica” Leichtlin has sometimes been applied to a portion of this species. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 26, p. 384. | FNA vol. 26, p. 394. |
Parent taxa | Iridaceae > Iris > subg. Limniris > sect. Limniris > ser. Californicae | Iridaceae > Iris > subg. Limniris > sect. Limniris > ser. Spuriae |
Sibling taxa | ||
Synonyms | I. elata | |
Name authority | Torrey: Pacif. Railr. Rep. 4(5): 144. (1857) | Miller: Gard. Dict. ed. 8, Iris no. 9. (1768) |
Web links |