Cardamine macrocarpa

Brandegee

Zoë 5: 233. 1906.

Synonyms: Cardamine macrocarpa var. texana Rollins
Treatment appears in FNA Volume 7. Treatment on page 476. Mentioned on page 466.

Annuals; glabrous or sparsely puberulent. Rhizomes absent. Stems (simple or several from base), erect or decumbent, (flexuous or straight, narrowly winged-angled), unbranched or branched distally, (1.4–) 2–4.5 (–5.3) dm. Basal leaves (soon withered), not rosulate. Cauline leaves 3–9, middle ones 5–9-foliolate, petiolate, leaflets petiolulate or subsessile; petiole 1–3 cm, base not auriculate; lateral leaflets similar to terminal, blade often smaller, with oblique base, distal leaflets subsessile, blade smaller and narrower distally; terminal leaflet (petiolule 0.2–0.8 cm), blade usually broadly ovate to narrowly lanceolate, rarely oblong, 0.7–2 cm × 2–10 mm, base cuneate to rounded, margins repand, crenate, or 3-lobed. Racemes ebracteate, (rachis slightly to strongly flexuous or geniculate). Fruiting pedicels horizontal to divaricate or ascending, (3–) 4–9 (–12) mm. Flowers: sepals oblong, 2–3.5 × 0.7–1.2 mm, lateral pair not saccate basally; petals white, linear, 6–8 × 0.7–1 mm; filaments: median pairs 4–5 mm, lateral pair 3.5–4 mm; anthers oblong, 0.7–1 mm. Fruits linear, (2.5–) 3–4.6 cm × 1.7–2.1 mm; ovules 14–22 per ovary; style 1–3 mm. Seeds dark-brown, oblong, 2–2.5 × 0.9–1.2 mm.


Phenology: Flowering Mar–Sep.
Habitat: Rock crevices and ledges, gravel bars of mountain streams, moist rocky stream banks, shaded loamy forest floors

Distribution

V7 731-distribution-map.gif

Tex., Mexico (Coahuila), Mexico (Nuevo León)

Discussion

Cardamine macrocarpa is known from the Chisos Mountains, Brewster County.

The characters by which var. texana is said to differ from var. macrocarpa are artificially drawn, and the style length, presence or absence of indumentum on the pedicels, and degree of flexuosity of the raceme rachises do not correlate and can vary within a given area. For these reasons, we do not recognize infraspecific taxa in Cardamine macrocarpa.

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 macrocarpa"
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Ihsan A. Al-Shehbaz +, Karol Marhold +  and Judita Lihová +
Brandegee +
cuneate +  and rounded +
appendaged +  and unappendaged +
0.7 cm7 mm <br />0.007 m <br /> (2 cm20 mm <br />0.02 m <br />) +
compound +  and trifoliolate +
lobed +, 1-3-pinnatisect +, toothed +  and entire +
oblong;usually broadly ovate;narrowly lanceolate +
smaller +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
urceolate +, campanulate +  and tubular +
branched +  and simple +
sessile +  and petiolate +
well-developed +
distinct +
differentiated +
emarginate +  and entire +
Tex. +, Mexico (Coahuila) +  and Mexico (Nuevo León) +
straight +  and curved +
not winged +  and unappendaged +
connate +  and distinct +
lateral +  and median +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 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 +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
3 cm30 mm <br />0.03 m <br /> (4.6 cm46 mm <br />0.046 m <br />) +
angustiseptate +, 4-angled +  and terete +
0.17 cm1.7 mm <br />0.0017 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
latiseptate +  and sessile +
torulose +, lanceolate +, oblong +  and linear +
Rock crevices and ledges, gravel bars of mountain streams, moist rocky stream banks, shaded loamy forest floors +
semiannular +  and annular +
compound +, pinnately +, trifoliolate +  and simple +
alternate +, not +  and rosulate +
basal +  and cauline +
subsessile +  and petiolulate +
connate +  and distinct +
decurrent +
3-lobed;crenate;3-lobed;crenate;repand +
petiolate +  and 5-9-foliolate +
tenuinucellate +, crassinucellate +  and bitegmic +
campylotropous +  and anatropous +
rudimentary +
cruciform +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Flowering Mar–Sep. +
trinucleate +  and 3(-11)-colpate +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
ascending +  and horizontal +
stout +  and slender +
0.4 cm4 mm <br />0.004 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
flattened +
not +  and mucilaginous +
winged +  and margined +
uniseriate +  and biseriate +
not +  and mucilaginous +
dark-brown +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
persistent +  and caducous +
distinct +
erect +  and spreading or ascending +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
reduced +
latiseptate +  and unsegmented +
angustiseptate +, 4-angled +  and terete +
latiseptate +  and unsegmented +
angustiseptate +, 4-angled +  and terete +
tetradynamous +
branched +  and unbranched +
procumbent +  and decumbent +
prostrate +  and decumbent +
decumbent +  and erect +
2-lobed +, entire +, conical +  and capitate +
subsessile +, sessile +  and petiolate +
persistent +
distinct +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Cardamine macrocarpa var. texana +
Cardamine macrocarpa +
Cardamine +
species +
scale-like +  and forked +
pubescent +, , +  and glabrous +
anastomosing +
puberulent +  and glabrous +
rhizomatous +, taprooted +, scapose +  and not +
perennial +, biennial +  and annual +
subshrub +  and herb +
aquatics +  and terrestrial +
glabrous +  and pubescent +