Draba asprella var. stelligera
in H. G. A. Engler, Pflanzenr. 89[IV,105]: 106. 1927.
EndemicConservation concern
Synonyms: Draba asprella var. kaibabensis C. L. Hitchcock
Treatment appears in FNA Volume 7. Treatment on page 293.
Fruit valves puberulent, trichomes 2–4-rayed, 0.1–0.2 mm.
Phenology: Flowering Apr–Jul.
Habitat: On and around limestone and sandstone rock outcrops in pine-oak and pinyon-juniper communities
Elevation: 1500-2400 m
Discussion
Of conservation concern.
Variety stelligera is known from Coconino, Gila, and Yavapai counties in northern and central Arizona. The difference between vars. kaibabensis and stelligera rests on trichome density and the proportion of simple versus branched hairs on the leaves. These features are highly variable and we find no dependable characteristics separating populations on the North Rim of the Grand Canyon from those to the south.
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 asprella var. stelligera"
hypogynous +
dithecal +
dehiscing +
rosulate +
opposite +
absent +
oblanceolate;spatulate or obovate +
absent +
woody +
absent +
well-developed +
distinct +
absent +
well-differentiated +
accumbent +
3[2]-fid +
absent +
Ariz. +
absent +
median +
actinomorphic +
orange;purple;orange;purple;pink;white;yellow +
lateral +
bisexual +
puberulent +
distinct +
absent +
On and around limestone and sandstone rock outcrops in pine-oak and pinyon-juniper communities +
racemose +
pungent +
watery +
absent +
connivent +
spreading +
decurrent +
pinnatifid +
absent +
1-seeded +
distinct +
obscure +
receptacular +
variable +
simple +
eseptate +
parietal +
apical +
8;12 +
decussate +
absent +
hypogynous +
alternate +
pale-yellow +
4mm;7mm +
absent +
rudimentary +
oblanceolate +
2-carpellate +
3-colpate +
in H. G. A. Engler, Pflanzenr. +
1927 +
ebracteate;(15-)30-75-flowered +
divaricate +
slender +
not flexuous +
pubescent +
coiled +
accumbent +
conduplicate +
incumbent +
tiny +
indistinct +
rounded +
slender +
mucilaginous +
winged +
biseriate +
oblong +
saccate +
distinct +
lateral +
pubescent +
ovate +
complete +
absent +
reduced +
longitudinal +
tetradynamous +
confluent +
distinct +
equal +
unbranched +
pubescent +
capitate +
2-lobed +
absent +
persistent +
distinct +
absent +
obsolete +
simple +
pubescent +
Draba asprella var. stelligera +
Draba asprella +
variety +
spurred +
mixed +
stellate +
absent +
puberulent +
dehiscing +
hirsute +
anastomosing +
straight +
perennial +
pubescent +
submerged +