Iodanthus pinnatifidus

(Michaux) Steudel

Nomencl. Bot., ed. 2, 1: 812. 1840.

Common names: Purple- or violet-rocket
IllustratedEndemic
Basionym: Hesperis pinnatifida Michaux Fl. Bor.-Amer. 2: 31. 1803
Synonyms: Arabis hesperidoides (Torrey & A. Gray) A. Gray Cheiranthus hesperidoides Torrey & A. Gray Iodanthus hesperidoides (Torrey & A. Gray) Torrey & A. Gray Thelypodium pinnatifidum (Michaux) S. Watson
Treatment appears in FNA Volume 7. Treatment on page 485.

Stems 3–8(–10) dm, striate. Cauline leaves: (proximal) petiole (0.5–)1–4 cm, (narrowly to broadly winged), distal sessile; blade lanceolate, ovate, elliptic, or oblong, (3–)4–12(–15) cm × (12–)20–55(–70) mm, base cuneate to attenuate, or (distalmost) minutely to coarsely auriculate, margins usually minutely to coarsely, regularly or irregularly, dentate or serrate, rarely subentire, apex acute to acuminate, surfaces glabrous or pubescent. Fruiting pedicels straight or slightly curved upward, (2–)3–8(–9) mm (nearly as thick as fruit). Flowers: sepals 3–6 × 1–1.5 mm, glabrous or subapically pilose; petals 7–12(–14) × 1.5–2.5(–3) mm, attenuate to claw (claw 4–7 mm); filaments 3–6 mm; anthers 2–2.5 mm; gynophore obsolete or to 1 mm. Fruits usually divaricate to ascending, rarely erect, (1.5–)2–3.5(–4) cm × 1–1.5 mm; style (1–)2–4 mm. Seeds 1.2–1.5 × 0.7–1 mm.


Phenology: Flowering late Apr-early Jul.
Habitat: Shaded banks, thickets, wooded ravines, limestone or sandstone bluffs, bottomland woods, swamps, flood plains, creeks, streamsides
Elevation: 50-300 m

Distribution

V7 750-distribution-map.gif

Ala., Ark., Ill., Ind., Iowa, Kans., Ky., Md., Minn., Mo., Ohio, Okla., Pa., Tenn., Tex., W.Va.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Iodanthus pinnatifidus"
Ihsan A. Al-Shehbaz +
(Michaux) Steudel +
Hesperis pinnatifida +
Purple- or violet-rocket +
Ala. +, Ark. +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, Md. +, Minn. +, Mo. +, Ohio +, Okla. +, Pa. +, Tenn. +, Tex. +  and W.Va. +
50-300 m +
Shaded banks, thickets, wooded ravines, limestone or sandstone bluffs, bottomland woods, swamps, flood plains, creeks, streamsides +
Flowering late Apr-early Jul. +
Nomencl. Bot., ed. +
Illustrated +  and Endemic +
Arabis hesperidoides +, Cheiranthus hesperidoides +, Iodanthus hesperidoides +  and Thelypodium pinnatifidum +
Iodanthus pinnatifidus +
Iodanthus +
species +