Mentzelia humilis var. humilis
Common names: Gypsum blazingstar
Endemic
Synonyms: Nuttallia gypsea Wooton & Standley
Treatment appears in FNA Volume 12. Treatment on page 503.
Leaf-blades: widest intersinus distance 0.8–2.6 (–3.3) mm; proximal oblanceolate to elliptic, margins pinnatisect, lobes 4–16 (–20), 2.3–11.8 (–16.4) × 1–2.9 mm; distal elliptic, lanceolate, or linear, margins entire, dentate, or pinnatisect, teeth or lobes (0–) 4–16, 2.3–13.8 (–16.9) × 0.9–1.8 mm. Flowers: petals 11.8–21.3 (–24.6) × 1.4–3.7 mm; 5 outermost stamens linear to narrowly spatulate, 10.6–19 (–22.3) × 0.7–3.3 mm. Seed-coat: papillae 7–12 per cell. 2n = 20.
Phenology: Flowering Apr–Oct.
Habitat: Sparsely vegetated areas in dry grasslands, roadsides, level areas or gentle slopes, gravelly, clayey, and sandy gypsum substrates.
Elevation: 900–1600 m.
Discussion
Variety humilis occurs in western Texas and south-central New Mexico. Its range approaches Mentzelia humilis var. guadalupensis in Eddy County, New Mexico, but the two varieties are not known to co-occur.
Selected References
None.
Lower Taxa
None.
No values specified."not elongating" is not a number.
... more about "Mentzelia humilis var. humilis"
needlelike +
outer +
epigynous +
straight +
glabrous +
acute +
long +
broad +
not persistent +
absent +
not clasping +
widest +
unlobed;lobed;orbiculate;obovate;unlobed;lobed;orbiculate;obovate;unlobed;lobed;orbiculate;obovate;oblanceolate;spatulate;linear;lanceolate;elliptic;ovate;cordate;deltate;hastate +
straight +
cup-shaped +
ground-level +
anticlinal +
wavy +
Gypsum blazingstar +
linear;spatulate;linear;spatulate;lanceolate;elliptic +
straight +
hairy +
equal +
papillate +
symmetric +
bisexual +
dehiscing +
simple +
Sparsely vegetated areas in dry grasslands, roadsides, level areas or gentle slopes, gravelly, clayey, and sandy gypsum substrates. +
longer +
proximal +
linear;lanceolate;linear;lanceolate;elliptic;oblanceolate;elliptic +
simple +
alternate +
toothed +
distal +
absent +
sterile +
petaloid +
parietal +
1;60 +
7;12 +
inconspicuous +
epigynous +
differentiated +
symmetric +
white +
persisting +
11.8mm;21.3mm +
absent +
3-carpellate +
parietal +
Ann. Missouri Bot. Gard. +
1934 +
isodiametric +
polygonal +
winged +
2;60 +
symmetric +
green +
persisting +
persistent +
connate +
shorter +
longitudinal +
Endemic +
symmetric +
white +
fertile +
petaloid +
absent +
entire +
straight +
erect +
multiple +
papillate +
absent +
Mentzelia humilis var. humilis +
Mentzelia humilis +
variety +
needlelike +
pointed +
stinging +
anticlinal +
wavy +
perennial +