Boechera fecunda

(Rollins) Dorn

Brittonia 55: 3. 2003.

Basionym: Arabis fecunda Rollins Contr. Gray Herb. 214: 1. 1984
Treatment appears in FNA Volume 7. Treatment on page 377. Mentioned on page 354.

Perennials; usually long-lived; sexual; caudex often woody. Stems 1 to several per caudex branch, arising from center and margin of rosette, slightly elevated on woody base or from near ground surface, 0.8–3 dm, densely pubescent throughout, trichomes short-stalked, 5–10-rayed, 0.1–0.2 mm. Basal leaves: blade linear-oblanceolate, 1–5 mm wide, margins entire or with few teeth subapically, not ciliate, surfaces densely pubescent, trichomes short-stalked, 5–10-rayed, 0.1–0.2 mm. Cauline leaves: 5–18, concealing stem proximally; blade auricles 0.5–2.5 mm, surfaces of distalmost leaves densely pubescent. Racemes 8–35-flowered, usually unbranched. Fruiting pedicels erect to ascending, straight, 5–15 mm, pubescent, trichomes appressed, branched. Flowers erect to ascending at anthesis; sepals pubescent; petals purplish, 8–12 × 2.5–4.5 mm; pollen ellipsoid. Fruits erect to ascending, often appressed to rachis, not secund, straight, edges parallel, 3–5.8 cm × 1.4–1.8 mm; valves densely pubescent throughout; ovules 34–68 per ovary; style 1–1.5 mm. Seeds uniseriate, 1–1.5 × 0.8–1.2 mm; wing continuous, 0.5–0.1 mm wide.


Phenology: Flowering Apr–Jun.
Habitat: Rocky ground in sagebrush areas
Elevation: 1200-1800 m

Discussion

Of conservation concern.

Boechera fecunda is a distinctive sexual species known from Ravali and Silver Bow counties.

Boechera fecunda is in the Center for Plant Conservation’s National Collection of Endangered Plants.

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 "Boechera fecunda"
oblong +  and ovate +
Ihsan A. Al-Shehbaz +  and Michael D. Windham +
(Rollins) Dorn +
not +  and rosulate +
Arabis fecunda +
appendaged +  and unappendaged +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
not +  and auriculate +
lyrate-pinnatifid +, dentate +  and entire +
dissected +, repand +, sinuate +, crenate +  and dentate +
linear-oblanceolate +
much smaller +  and reduced +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
urceolate +, campanulate +  and tubular +
branched +  and simple +
petiolate +  and sessile +
well-developed +
indistinct +
not +  and differentiated +
emarginate +  and entire +
3 cm30 mm <br />0.03 m <br /> (5.8 cm58 mm <br />0.058 m <br />) +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
1200-1800 m +
straight +  and curved +
not winged +  and unappendaged +
connate +  and distinct +
actinomorphic +
erect +  and ascending +
straight +
erect +  and ascending +
torulose +, falcate +, lanceolate +, oblong +  and linear +
Rocky ground in sagebrush areas +
annular +  and semiannular +
sessile +  and petiolate +
alternate +, not +  and rosulate +
cauline +  and basal +
connate +  and distinct +
decurrent +
with few teeth +  and entire +
pinnatifid +
prominent +  and obscure +
tenuinucellate +, crassinucellate +  and bitegmic +
campylotropous +  and anatropous +
8mm;12mm +
rudimentary +
oblanceolate +  and spatulate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
Flowering Apr–Jun. +
trinucleate +  and 3(-11)-colpate +
ellipsoid +
unbranched;8-35-flowered +
reflexed +, ascending +  and erect +
slender +
mucilaginous +
margined +, not winged +  and winged +
biseriate +, sub-biseriate +  and uniseriate +
not +  and mucilaginous +
white +, black +, brown +  and yellow +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
orbicular +, oblong +  and flattened +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
persistent +  and caducous +
distinct +
spreading +, ascending +  and erect +
oblong +  and ovate +
reduced +
latiseptate +, schizocarpic +, samaroid +  and lomentaceous +
indehiscent +  and dehiscent +
angustiseptate +, flat +, angled +, terete +, torulose +, not +, segmented +  and nutletlike +
tetradynamous +
branched +  and unbranched +
procumbent +  and decumbent +
several +  and 1 +
subsessile +, sessile +  and petiolate +
persistent +
distinct +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Cruciferae +
Boechera fecunda +
Boechera +
species +
branched +  and short-stalked +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
coiled +, 1-7-veined +  and veined +
anastomosing +
perennial +  and long-lived +
erect +  and ascending +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
rhizomatous +, taprooted +, scapose +  and not +
perennial +, biennial +  and annual +
subshrub +  and herb +
aquatics +  and terrestrial +
glabrous +  and pubescent +
0.5mm;0.1mm +