Arabis caucasica

Willdenow

Enum. Pl., suppl., 45. 1814.

Common names: Garden rockcress
Introduced
Treatment appears in FNA Volume 7. Treatment on page 259. Mentioned on page 258.

Perennials; (stoloniferous, with vegetative rosettes, loosely cespitose to somewhat pulvinate); sparsely to moderately pubescent, trichomes stalked, cruciform, stellate, mixed with simple and forked-stalked ones. Stems several to many from base, erect, ascending to decumbent, branched (several), 1.5–3.5 (–5) dm. Basal leaves: petiole 0–1 cm; blade spatulate, oblanceolate, oblong, or obovate, 2–5.5 (–8) cm × 9–18 (–25) mm, margins dentate to denticulate, apex obtuse or acute, surfaces usually pubescent, rarely subglabrate, trichomes stellate with some rays branched. Cauline leaves 4–8; blade oblong or ovate, 1–5 cm × 5–20 mm, base subcordate or auriculate, margins usually dentate, rarely subentire, apex acute or obtuse. Racemes simple, (lax). Fruiting pedicels ascending to divaricate, 7–17 (–20) mm. Flowers: sepals oblong, 4.5–8 × 1–2 mm, lateral pair conspicuously saccate basally; petals white, spatulate to obovate, 10–19 × 4–8 mm, apex obtuse; filaments 4–7 mm; anthers oblong, 0.7–1.2 mm. Fruits ascending to spreading, torulose, (3–) 4–7 cm × 1–2 mm; valves each with midvein absent or obscure, along proximal 1/2; ovules 40–60 per ovary; style 0.5–1 mm. Seeds narrowly winged throughout, ovate, 1–1.4 × 0.9–1.1 mm; wing 0.1–0.2 mm wide. 2n = 16.


Phenology: Flowering Jun–Aug.
Habitat: Rare garden escape

Distribution

V7 340-distribution-map.gif

Introduced; B.C., N.B., Ont., Que., Yukon, Mich., N.Y., sw Asia

Discussion

Selected References

None.

Lower Taxa

None.

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

... more about "Arabis caucasica"
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
Obtuse (?) +  and Acute (?) +
Ihsan A. Al-Shehbaz +
Willdenow +
sessile +  and petiolate +
auriculate +  and subcordate +
appendaged +  and unappendaged +
5.5 cm55 mm <br />0.055 m <br /> (8 cm80 mm <br />0.08 m <br />) +
1.8 cm18 mm <br />0.018 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
lyrate-pinnatifid +, dentate to denticulate +  and entire +
dissected +, repand +, sinuate +, crenate +  and dentate +
ovate;oblong;obovate;oblong;obovate;oblong;oblanceolate;spatulate +
much smaller +  and reduced +
5mm;20mm +
urceolate +, campanulate +  and tubular +
branched +  and simple +
petiolate +  and sessile +
well-developed +
distinct +
differentiated +
Garden rockcress +
emarginate +  and entire +
B.C. +, N.B. +, Ont. +, Que. +, Yukon +, Mich. +, N.Y. +  and sw Asia +
straight +  and curved +
not winged +  and unappendaged +
connate +  and distinct +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
actinomorphic +
latiseptate +  and unsegmented +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
indehiscent +  and dehiscent +
ascending +  and spreading +
torulose +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
latiseptate +, stipitate +  and sessile +
flattened +  and torulose +
Rare garden escape +
annular +  and semiannular +
sessile +  and petiolate +
alternate +, not +  and rosulate +
cauline +  and basal +
connate +  and distinct +
decurrent +
subentire;dentate;denticulate +
prominent +  and obscure +
forked +
tenuinucellate +, crassinucellate +  and bitegmic +
campylotropous +  and anatropous +
1 cm10 mm <br />0.01 m <br /> (1.9 cm19 mm <br />0.019 m <br />) +
rudimentary +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Flowering Jun–Aug. +
trinucleate +  and 3(-11)-colpate +
Enum. Pl., suppl., +
1.7 cm17 mm <br />0.017 m <br /> (2 cm20 mm <br />0.02 m <br />) +
elongated +
slender +
0.7 cm7 mm <br />0.007 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
mucilaginous +
uniseriate +  and biseriate +
not +  and mucilaginous +
White (?) +, Black (?) +, Brown (?) +  and Yellow (?) +
0.1 cm1 mm <br />0.001 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
persistent +  and caducous +
distinct +
ascending +  and erect +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
reduced +
latiseptate +  and unsegmented +
indehiscent +  and dehiscent +
latiseptate +  and unsegmented +
indehiscent +  and dehiscent +
Introduced +
tetradynamous +
procumbent +  and decumbent +
ascending +  and decumbent +
several +  and many +
subsessile +, sessile +  and petiolate +
persistent +
distinct +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
subglabrate +  and pubescent +
Cruciferae +
Arabis caucasica +
species +
cruciform +
coiled +, 1-7-veined +  and veined +
anastomosing +
rhizomatous +, taprooted +, scapose +  and not +
perennial +, biennial +  and annual +
subshrub +  and herb +
aquatics +  and terrestrial +
glabrous +  and pubescent +
0.1mm;0.2mm +