Cardamine longii

Fernald

Rhodora 19: 91. 1917.

IllustratedEndemic
Treatment appears in FNA Volume 7. Treatment on page 476. Mentioned on page 465.

Perennials; glabrous throughout. Rhizomes cylindrical, slender, 0.8–1.5 mm diam. Stems prostrate to decumbent or erect, unbranched or branched, 0.5–4 (–6) dm. Rhizomal leaves absent. Cauline leaves 3–10, usually simple, rarely 3 or 5-foliolate, petiolate; petiolulate or sessile; petiole 0.4–2.5 cm, base not auriculate; lateral leaflets (when present) sessile or petiolulate (to 0.2 cm), blade similar to terminal, considerably smaller; terminal leaflet blade orbicular to reniform or ovate to oblong, 0.4–3 cm × 3–20 mm, (somewhat fleshy), base subcordate to rounded or subtruncate, margins entire or repand, rarely undulate, (apex rounded). Racemes ebracteate. Fruiting pedicels divaricate-ascending to spreading, 0.5–2 (–4) mm. Flowers: sepals ovate, 0.7–1.2 × 0.5–0.7 mm, lateral pair not saccate basally; petals absent or rudimentary, to 0.7 mm; filaments 0.5–0.8 mm; anthers ovate, 0.1–0.2 mm. Fruits narrowly oblong to linear, (3–) 5–10 (–15) × 0.8–1.2 mm; ovules 6–22 per ovary; style 0.2–0.5 (–1) mm. Seeds light or yellowish-brown, oblong or ovoid, 1–1.4 × 0.7–1 mm.


Phenology: Flowering Jun–Sep.
Habitat: Tidal marshes, mud flats, tidal shores of rivers, shallow water, swampy areas, shady rocky crevices covered at high tide
Elevation: 0-10 m

Distribution

V7 730-distribution-map.gif

Fla., Maine, Md., Mass., N.J., N.Y., N.C., S.C., Va.

Discussion

Selected References

None.

Lower Taxa

None.

"equal" is not a number."elongated" is not a number."thick" is not a number.

... more about "Cardamine longii"
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
Ihsan A. Al-Shehbaz +, Karol Marhold +  and Judita Lihová +
Fernald +
subcordate +  and rounded +
appendaged +  and unappendaged +
compound +  and trifoliolate +
lobed +, 1-3-pinnatisect +, toothed +  and entire +
smaller +
urceolate +, campanulate +  and tubular +
branched +  and simple +
sessile +, petiolulate +, petiolate +, 5-foliolate +  and simple +
well-developed +
distinct +
differentiated +
emarginate +  and entire +
Fla. +, Maine +, Md. +, Mass. +, N.J. +, N.Y. +, N.C. +, S.C. +  and Va. +
0-10 m +
straight +  and curved +
not winged +  and unappendaged +
connate +  and distinct +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 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 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
narrowly oblong +  and linear +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
latiseptate +  and sessile +
torulose +, lanceolate +, oblong +  and linear +
Tidal marshes, mud flats, tidal shores of rivers, shallow water, swampy areas, shady rocky crevices covered at high tide +
semiannular +  and annular +
petiolulate +  and sessile +
compound +, pinnately +, trifoliolate +  and simple +
alternate +, not +  and rosulate +
basal +  and cauline +
0.4 cm4 mm <br />0.004 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (2 cm20 mm <br />0.02 m <br />) +
connate +  and distinct +
decurrent +
undulate;repand;entire +
tenuinucellate +, crassinucellate +  and bitegmic +
campylotropous +  and anatropous +
purple +, lilac +, pink +, yellow +  and white +
rudimentary +
cruciform +
0 cm0 mm <br />0 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Flowering Jun–Sep. +
trinucleate +  and 3(-11)-colpate +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
divaricate-ascending +  and spreading +
stout +  and slender +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
flattened +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
cylindrical +
not +  and mucilaginous +
winged +  and margined +
uniseriate +  and biseriate +
not +  and mucilaginous +
yellowish-brown +  and light +
0.1 cm1 mm <br />0.001 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
ovoid +  and oblong +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
persistent +  and caducous +
distinct +
erect +  and spreading or ascending +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
reduced +
latiseptate +  and unsegmented +
angustiseptate +, 4-angled +  and terete +
latiseptate +  and unsegmented +
angustiseptate +, 4-angled +  and terete +
Illustrated +  and Endemic +
tetradynamous +
branched +  and unbranched +
procumbent +  and decumbent +
prostrate +  and decumbent +
2-lobed +, entire +, conical +  and capitate +
subsessile +, sessile +  and petiolate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
persistent +
distinct +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Dentaria +, Dracamine +  and Loxostemon +
Cardamine longii +
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 +