Draba cruciata

Payson

Amer. J. Bot. 4: 265. 1917.

EndemicConservation concern
Treatment appears in FNA Volume 7. Treatment on page 303. Mentioned on page 280, 282, 337.

Perennials; (cespitose, loosely matted); caudex branched (with persistent leaf remains, branches sometimes terminating in sterile rosettes); scapose. Stems unbranched, (0.3–) 0.5–1.4 (–1.8) dm, often glabrous throughout, sometimes pubescent proximally, trichomes stalked, cruciform, 0.07–0.3 mm, with 3–5-rayed ones. Basal leaves rosulate; petiolate; petiole ciliate throughout; blade oblanceolate to narrowly obovate, (0.4–) 0.6–1.1 (–1.6) cm × 1.5–3 mm, margins entire or minutely denticulate, surfaces pubescent with stalked, cruciform trichomes, 0.07–0.4 mm, (rarely with fewer, 3–5-rayed ones, sometimes both surfaces glabrous and only margins pubescent, not ciliate, midvein obscure abaxially). Cauline leaves 0. Racemes (3–) 5–18 (–22) -flowered, ebracteate, considerably elongated in fruit; rachis not flexuous, glabrous. Fruiting pedicels divaricate-ascending, (not decurrent basally), straight, (4–) 5–10 (–13) mm, glabrous. Flowers: sepals ovate, 1.5–2 mm, glabrous or pubescent distally, (trichomes short-stalked, 4-rayed); petals yellow, spatulate to oblanceolate, 4–5 (–6) × 1.2–2 mm; anthers ovate, 0.4–0.6 mm. Fruits narrowly lanceolate to elliptic-lanceolate, plane (not curved), flattened, (4–) 6–12 (–16) × 1.5–3 mm; valves glabrous or puberulent, trichomes simple and short stalked, 2–4-rayed, 0.03–0.15 mm; ovules 6–10 (–12) per ovary; style (0.1–) 0.3–0.8 mm. Seeds ovoid, 1–1.7 × 0.8–1.3 mm.


Phenology: Flowering Jul–Aug.
Habitat: Subalpine areas, ridges in pine and fir forests
Elevation: 2500-3100 m

Discussion

Of conservation concern.

Draba cruciata is known only from the Sierra Nevada of Tulare County.

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

... more about "Draba cruciata"
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
Ihsan A. Al-Shehbaz +, Michael D. Windham +  and Reidar Elven +
Payson +
appendaged +  and unappendaged +
1.1 cm11 mm <br />0.011 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
not +  and auriculate +
0.6 cm6 mm <br />0.006 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
lobed +, toothed +  and entire +
oblanceolate;narrowly obovate +
much smaller +  and reduced +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
urceolate +, campanulate +  and tubular +
scapose +  and branched +
sessile +  and petiolate +
well-developed +
distinct +
well-differentiated +
emarginate +  and entire +
2500-3100 m +
straight +  and curved +
not winged +  and unappendaged +
connate +  and distinct +
not basally +  and dilated +
actinomorphic +
orange;purple;orange;purple;pink;white;yellow +
spreading +, ascending +  and erect +
linear +, oblanceolate +, spatulate +, obovate +, subsaccate +, not saccate +, oblong +  and ovate +
latiseptate +, twisted +  and sessile +
1.2 cm12 mm <br />0.012 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
indehiscent +  and dehiscent +
0.6 cm6 mm <br />0.006 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
flattened +, plane +, narrowly lanceolate +  and elliptic-lanceolate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Subalpine areas, ridges in pine and fir forests +
sessile +  and petiolate +
alternate +, not +  and rosulate +
cauline +  and basal +
connate +  and distinct +
decurrent +
dentate +  and entire +
denticulate;entire +
tenuinucellate +, crassinucellate +  and bitegmic +
campylotropous +  and anatropous +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
rudimentary +
spatulate +  and oblanceolate +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Flowering Jul–Aug. +
trinucleate +  and 3(-11)-colpate +
Amer. J. Bot. +
ebracteate;(3-)5-18(-22)-flowered +
ascending +  and erect +
slender +
1 cm10 mm <br />0.01 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
straight +  and not flexuous +
divaricate-ascending +
mucilaginous +
not +  and mucilaginous +
white +, black +, brown +  and yellow +
0.1 cm1 mm <br />0.001 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
persistent +  and caducous +
distinct +
spreading +, ascending +  and erect +
pubescent +  and glabrous +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
reduced +
latiseptate +, twisted +  and sessile +
indehiscent +  and dehiscent +
terete +, plane +, subglobose +, ovoid +, suborbicular +, linear +, oblong +, elliptic +, lanceolate +  and ovate +
latiseptate +, twisted +  and sessile +
indehiscent +  and dehiscent +
terete +, plane +, subglobose +, ovoid +, suborbicular +, linear +, oblong +, elliptic +, lanceolate +  and ovate +
Endemic +  and Conservation concern +
tetradynamous +
procumbent +  and decumbent +
prostrate +  and decumbent +
usually erect +  and ascending +
pubescent +  and glabrous +
subsessile +, sessile +  and petiolate +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
persistent +
distinct +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
0.007 cm0.07 mm <br />7.0e-5 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
Abdra +, Erophila +, Nesodraba +  and Tomostima +
Draba cruciata +
species +
stalked +  and simple +
cruciform +
0.003 cm0.03 mm <br />3.0e-5 m <br /> (0.015 cm0.15 mm <br />1.5e-4 m <br />) +
coiled +, 1-7-veined +  and veined +
puberulent +  and glabrous +
anastomosing +
scapose +  and not +
pubescent +  and glabrous +
rhizomatous +, taprooted +, scapose +  and not +
perennial +, biennial +  and annual +
subshrub +  and herb +
aquatics +  and terrestrial +
glabrous +  and pubescent +