Cardamine rotundifolia

Michaux

Fl. Bor.-Amer. 2: 30. 1803.

Endemic
Synonyms: Dentaria rotundifolia (Michaux) Greene
Treatment appears in FNA Volume 7. Treatment on page 483. Mentioned on page 465.

Perennials; glabrous throughout. Rhizomes slender, to 2 mm diam. Stems usually procumbent, sometimes erect, (not flexuous), unbranched or branched, (1–) 1.5–3 (–5) dm. Rhizomal leaves absent. Basal leaves (soon withered), not rosulate. Cauline leaves simple, petiolate; petiole (0.3–) 0.5–2.5 (–4) cm, base not auriculate; blade oblong, ovate, suborbicular, or cordate, (0.5–) 1–4.5 (–5.5) cm × (5–) 10–40 (–54) mm, base cordate, rounded, or truncate, margins entire, repand, or sinuate, (distally with shorter petiole, blade smaller). Racemes ebracteate. Fruiting pedicels divaricate to ascending, (6–) 10–15 (–20) mm. Flowers: sepals oblong, 2–3 × 1–1.7 mm, lateral pair not saccate basally; petals white, broadly oblanceolate, spreading, 5–7 (–8) × 2–3 mm, (not clawed, apex rounded); filaments: median pairs 3.5–4.5 mm, lateral pair 2.7–3.5 mm; anthers oblong, 0.8–1.2 mm. Fruits linear, (torulose), 1–1.5 (–2) cm × 0.8–1.1 mm; ovules 40–80 per ovary; style 1.5–2.5 mm. Seeds brown, oblong to ovoid, 0.9–1.1 × 0.5–0.6 mm.


Phenology: Flowering Apr–Jun.
Habitat: Stream banks, swamps, low woodland, wet rocky areas, seepage areas
Elevation: 150-400 m

Distribution

V7 746-distribution-map.gif

Del., Ga., Ky., Md., N.J., N.Y., N.C., Ohio, Pa., Tenn., Va., W.Va.

Discussion

Selected References

None.

Lower Taxa

None.

"equal" is not a number."elongated" is not a number."thick" is not a number."dm" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property.

... more about "Cardamine rotundifolia"
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
Ihsan A. Al-Shehbaz +, Karol Marhold +  and Judita Lihová +
Michaux +
rounded +, cordate +  and not auriculate +
appendaged +  and unappendaged +
4.5 cm45 mm <br />0.045 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
4 cm40 mm <br />0.04 m <br /> (5.4 cm54 mm <br />0.054 m <br />) +
1 cm10 mm <br />0.01 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
compound +  and trifoliolate +
lobed +, 1-3-pinnatisect +, toothed +  and entire +
cordate;suborbicular;cordate;suborbicular;ovate;oblong +
much smaller +  and reduced +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
urceolate +, campanulate +  and tubular +
branched +  and simple +
petiolate +  and simple +
well-developed +
distinct +
differentiated +
emarginate +  and entire +
Del. +, Ga. +, Ky. +, Md. +, N.J. +, N.Y. +, N.C. +, Ohio +, Pa. +, Tenn. +, Va. +  and W.Va. +
150-400 m +
straight +  and curved +
not winged +  and unappendaged +
connate +  and distinct +
lateral +  and median +
0.27 cm2.7 mm <br />0.0027 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
actinomorphic +
not basally +  and saccate +
lilac;purple;lilac;purple;pink;white +
ascending +, spreading +  and erect +
oblanceolate +, spatulate +, obovate +, oblong +  and ovate +
latiseptate +  and unsegmented +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
angustiseptate +, 4-angled +  and terete +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
latiseptate +  and sessile +
torulose +, lanceolate +, oblong +  and linear +
Stream banks, swamps, low woodland, wet rocky areas, seepage areas +
semiannular +  and annular +
compound +, pinnately +, trifoliolate +  and simple +
alternate +, not +  and rosulate +
basal +  and cauline +
connate +  and distinct +
decurrent +
sinuate;repand;sinuate;repand;entire +
tenuinucellate +, crassinucellate +  and bitegmic +
campylotropous +  and anatropous +
0.7 cm7 mm <br />0.007 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
rudimentary +
oblanceolate +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Flowering Apr–Jun. +
trinucleate +  and 3(-11)-colpate +
Fl. Bor.-Amer. +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
stout +  and slender +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
flattened +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
not +  and mucilaginous +
winged +  and margined +
uniseriate +  and biseriate +
not +  and mucilaginous +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
oblong +  and ovoid +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
persistent +  and caducous +
distinct +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
erect +  and spreading or ascending +
0.1 cm1 mm <br />0.001 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
reduced +
latiseptate +  and unsegmented +
angustiseptate +, 4-angled +  and terete +
latiseptate +  and unsegmented +
angustiseptate +, 4-angled +  and terete +
tetradynamous +
branched +  and unbranched +
prostrate +  and decumbent +
2-lobed +, entire +, conical +  and capitate +
subsessile +, sessile +  and petiolate +
persistent +
distinct +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Dentaria rotundifolia +
Cardamine rotundifolia +
Cardamine +
species +
scale-like +  and forked +
pubescent +, , +  and glabrous +
anastomosing +
rhizomatous +, taprooted +, scapose +  and not +
perennial +, biennial +  and annual +
subshrub +  and herb +
aquatics +  and terrestrial +
glabrous +  and pubescent +