Arabis blepharophylla

Hooker & Arnott

Bot. Beechey Voy., 321. 1838.

IllustratedEndemic
Treatment appears in FNA Volume 7. Treatment on page 266. Mentioned on page 258, 264.

Perennials; (caudex simple or branched, covered with persistent petiolar remains); sparsely to moderately pubescent, trichomes simple, forked-stalked, or rarely cruciform or 3-rayed, stalked, stellate. Stems simple or few from base (caudex), erect, unbranched or branched (few) distally, 0.6–2.5 (–3) dm, (usually pubescent throughout, rarely subglabrate). Basal leaves: petiole 0.5–3 (–6) cm, (ciliate); blade oblanceolate, spatulate, or obovate, (1.5–) 2.1–3.5 (–6) cm × (5–) 8–20 (–25) mm, margins entire or dentate, (ciliate), apex obtuse, surfaces pubescent or glabrous, trichomes simple and forked, sometimes mixed with 3-rayed or 4-rayed stellate ones. Cauline leaves (2 or) 3–6 (or 7); blade oblong or ovate, 1–2 (–4) cm × (2–) 4–10 (–15) mm, base not auriculate, margins entire or dentate, (ciliate), apex obtuse, surfaces pubescent as basal leaves. Racemes simple, (dense). Fruiting pedicels ascending to erect, (3–) 5–10 (–15) mm. Flowers: sepals (purple), oblong, 5–7 × 1.5–2 mm, lateral pair saccate basally; petals purple, spatulate or broadly so, (12–) 14–18 × 4–7 mm, apex obtuse or rounded; filaments 6–8 mm; anthers narrowly oblong, 1.2–1.5 mm. Fruits erect or nearly so, slightly torulose, 2–4 cm × 2–3 mm; valves each with prominent midvein extending full length or rarely to middle; ovules 20–28 per ovary; style 0.2–1 (–1.5) mm. Seeds narrowly winged throughout, orbicular or suborbicular, 2–2.5 mm in diam.; wing 0.2–0.4 mm wide (wider distally). 2n = 16.


Phenology: Flowering Mar–Apr.
Habitat: Rocky hillsides and bluffs, grassy hillsides, slopes
Elevation: 50-200 m

Discussion

Arabis blepharophylla is an attractive species on the gradual increase in cultivation as an ornamental. It is recorded from Contra Costa, Marin, San Francisco, San Mateo, Santa Cruz, and Sonoma counties; most of the records are based on older collections.

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 blepharophylla"
0.12 cm1.2 mm <br />0.0012 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Rounded (?) +  and Obtuse (?) +
Ihsan A. Al-Shehbaz +
Hooker & Arnott +
sessile +  and petiolate +
not auriculate +
appendaged +  and unappendaged +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
lyrate-pinnatifid +, dentate to denticulate +  and entire +
dissected +, repand +, sinuate +, crenate +  and dentate +
ovate;oblong;obovate;spatulate;obovate;spatulate;oblanceolate +
much smaller +  and reduced +
4mm;10mm +
urceolate +, campanulate +  and tubular +
branched +  and simple +
petiolate +  and sessile +
well-developed +
distinct +
differentiated +
emarginate +  and entire +
50-200 m +
straight +  and curved +
not winged +  and unappendaged +
connate +  and distinct +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
actinomorphic +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
1.5mm;2mm +
latiseptate +  and unsegmented +
indehiscent +  and dehiscent +
nearly +  and erect +
torulose +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
latiseptate +, stipitate +  and sessile +
flattened +  and torulose +
Rocky hillsides and bluffs, grassy hillsides, slopes +
annular +  and semiannular +
sessile +  and petiolate +
alternate +, not +  and rosulate +
cauline +  and basal +
connate +  and distinct +
decurrent +
dentate +  and entire +
pinnatifid +
forked +
tenuinucellate +, crassinucellate +  and bitegmic +
campylotropous +  and anatropous +
1.2 cm12 mm <br />0.012 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Purple (?) +, Pink (?) +  and White (?) +
1.4 cm14 mm <br />0.014 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
rudimentary +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Flowering Mar–Apr. +
trinucleate +  and 3(-11)-colpate +
Bot. Beechey Voy., +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
elongated +
ascending +  and erect +
slender +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
mucilaginous +
uniseriate +  and biseriate +
not +  and mucilaginous +
White (?) +, Black (?) +, Brown (?) +  and Yellow (?) +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
suborbicular +  and orbicular +
not basally +  and saccate +
persistent +  and caducous +
distinct +
ascending +  and erect +
oblong +  and ovate +
reduced +
latiseptate +  and unsegmented +
indehiscent +  and dehiscent +
latiseptate +  and unsegmented +
indehiscent +  and dehiscent +
Illustrated +  and Endemic +
tetradynamous +
branched +, unbranched +  and simple +
procumbent +  and decumbent +
subsessile +, sessile +  and petiolate +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
persistent +
distinct +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
pubescent +  and glabrous +
Cruciferae +
Arabis blepharophylla +
species +
simple +, stalked +  and forked-stalked +
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 +
0.2mm;0.4mm +