Rorippa teres

(Michaux) Stuckey

Sida 2: 409. 1966.

Basionym: Cardamine teres Michaux Fl. Bor.-Amer. 2: 29. 1803
Synonyms: Erysimum walteri (Elliott) Eaton Nasturtium micropetalum Fischer & C. A. Meyer Nasturtium obtusum Nuttall Nasturtium palustre var. tanacetifolium de Candolle Nasturtium tanacetifolium (de Candolle) Hooker & Arnott Nasturtium walteri (Elliott) Alph. Wood Rorippa obtusa (Nuttall) Britton Rorippa teres var. rollinsii Stuckey Rorippa walteri (Michaux) Torrey & A. Gray Sisymbrium teres Elliott Sisymbrium walteri
Treatment appears in FNA Volume 7. Treatment on page 505. Mentioned on page 496.

Annuals or, rarely, biennials; puberulent, at least proximally, or glabrous, (some trichomes clavate to hemispherical, vesicular). Stems (simple or several from base), usually prostrate or decumbent, rarely erect, branched distally, 1–4 dm, (glabrous or pubescent, trichomes vesicular). Basal leaves rosulate; blade margins pinnatifid. Cauline leaves shortly petiolate; blade oblong, oblanceolate to obovate, or lyrate-pinnatisect, (lateral lobes oblong to ovate), (2–)3.5–10(–13.5) cm × 10–40(–53) mm, base auriculate or not, margins usually pinnatifid to pinnatisect, rarely 2-pinnatifid, (lateral lobes) dentate to crenate or sinuate, (surfaces glabrous or adaxially pubescent, trichomes vesicular). Racemes elongated. Fruiting pedicels ascending to horizontal, straight or curved-ascending, (1.5–)2.3–4.7(–5.3) mm. Flowers: sepals erect, oblong, 1.5–2.5 × 0.5–1 mm; petals yellow, spatulate, 1–2 × 0.4–0.7 mm; median filaments 1.2–1.7 mm; anthers ovate, 0.2–0.3 mm. Fruits siliques, straight or curved, linear to oblong-linear, 8–14(–21) × 1–2.5 mm; valves glabrous or pubescent; ovules (100–)150–210 per ovary; style (0.2–)0.5–1.1 mm. Seeds biseriate, reddish brown, cordiform, 0.4–0.5 mm, foveolate.

Phenology: Flowering Dec–May.
Habitat: Wet areas, muddy grounds, edges of canals and ditches, sandy fields, margins of ponds, streamsides, peat
Elevation: 0-600 m


V7 791-distribution-map.gif

Ala., Ark., Fla., Ga., La., Miss., N.C., Okla., S.C., Tex., Mexico, Central America (Honduras, Nicaragua).


Selected References


Lower Taxa

... more about "Rorippa teres"
Ihsan A. Al-Shehbaz +
(Michaux) Stuckey +
Cardamine teres +
Ala. +, Ark. +, Fla. +, Ga. +, La. +, Miss. +, N.C. +, Okla. +, S.C. +, Tex. +, Mexico +, Central America (Honduras +  and Nicaragua). +
0-600 m +
Wet areas, muddy grounds, edges of canals and ditches, sandy fields, margins of ponds, streamsides, peat +
Flowering Dec–May. +
Weedy +  and Illustrated +
Erysimum walteri +, Nasturtium micropetalum +, Nasturtium obtusum +, Nasturtium palustre var. tanacetifolium +, Nasturtium tanacetifolium +, Nasturtium walteri +, Rorippa obtusa +, Rorippa teres var. rollinsii +, Rorippa walteri +, Sisymbrium teres +  and Sisymbrium walteri +
Rorippa teres +
species +