Mentzelia longiloba var. longiloba

Common names: Dune blazingstar
Illustrated
Treatment appears in FNA Volume 12. Treatment on page 520.

Leaves: blades 38–112 × 10–24.6 mm, widest intersinus distance 3.3–13.7 mm; proximal with margins pinnate, lobes 12–30, perpendicular to leaf axis, 1.4–6.6 × 1.9–6.1 mm; distal with margins pinnate, lobes 10–28, perpendicular to leaf axis, 2.3–8.6 × 1.8–5.8 mm. Bracts: margins entire or toothed. Flowers: petals 12.2–20.4 × 3.7–7.2 mm; 5 outermost stamens without anthers. Seeds 3.3–4 mm; seed-coat anticlinal cell-walls sinuous, papillae 67–106 per cell. 2n = 18.


Phenology: Flowering Feb–Oct.
Habitat: Stable sand dunes, hills, washes.
Elevation: 40–1400 m.

Distribution

V12 623-distribution-map.jpg

Ariz., Calif., Colo., N.Mex., Utah, Mexico (Baja California), Mexico (Sonora)

Discussion

Selected References

None.

Lower Taxa

None.

No values specified.

petaloid +  and heteromorphic +
0.52 cm5.2 mm <br />0.0052 m <br /> (0.56 cm5.6 mm <br />0.0056 m <br />) +
1.04 cm10.4 mm <br />0.0104 m <br /> (1.78 cm17.8 mm <br />0.0178 m <br />) +
clawed +  and spatulate +
0.19 cm1.9 mm <br />0.0019 m <br /> (0.52 cm5.2 mm <br />0.0052 m <br />) +
Acute (?) +  and Rounded (?) +
John J. Schenk +  and Larry Hufford +
J. Darlington +
ridged +, tapering +  and rounded +
Mentzelia +
3.8 cm38 mm <br />0.038 m <br /> (11.2 cm112 mm <br />0.112 m <br />) +
unlobed;lobed;orbiculate;obovate;unlobed;lobed;orbiculate;obovate;unlobed;lobed;orbiculate;obovate;oblanceolate;spatulate;linear;lanceolate;elliptic;ovate;cordate;deltate;hastate +
0.33 cm3.3 mm <br />0.0033 m <br /> (1.37 cm13.7 mm <br />0.0137 m <br />) +
widest;10mm;24.6mm +
upcurved +  and antrorse +
distal +  and along entire stem +
0.76 cm7.6 mm <br />0.0076 m <br /> (0.91 cm9.1 mm <br />0.0091 m <br />) +
cupshaped +  and cylindric +
0.57 cm5.7 mm <br />0.0057 m <br /> (0.92 cm9.2 mm <br />0.0092 m <br />) +
Dune blazingstar +
Ariz. +, Calif. +, Colo. +, N.Mex. +, Utah +, Mexico (Baja California) +  and Mexico (Sonora) +
40–1400 m. +
curved +  and straight +
s--shaped +, clavate +, urceolate +, ovoid +, cylindric +, subcylindric +, lingulate +  and cup-shaped +
simple +  and complex +
Stable sand dunes, hills, washes. +
free +  and adnate +
unlobed +  and filiform +
cauline +  and basal +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.86 cm8.6 mm <br />0.0086 m <br />) +
perpendicular +
1.8mm;5.8mm +
toothed +  and entire +
apical +, subapical +  and inferior +
perpendicular +  and oriented +
not elongating +
inconspicuous +
0.72 cm7.2 mm <br />0.0072 m <br /> (0.89 cm8.9 mm <br />0.0089 m <br />) +
connate +  and distinct +
1.22 cm12.2 mm <br />0.0122 m <br /> (2.04 cm20.4 mm <br />0.0204 m <br />) +
spreading +  and erect +
hairy +  and glabrous +
Obovate (?) +, Oblanceolate (?) +, Elliptic (?) +, Ovate (?) +  and Spatulate (?) +
0.37 cm3.7 mm <br />0.0037 m <br /> (0.72 cm7.2 mm <br />0.0072 m <br />) +
Flowering Feb–Oct. +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Ann. Missouri Bot. Gard. +
flattened +  and ovoid +
persistent +
lanceolate +  and narrowly ovate +
Illustrated +
golden yellow +
adnate +, free +  and distinct +
included +  and exserted +
straight +
papillate +
3-lobed +  and lingulate +
1.09 cm10.9 mm <br />0.0109 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
0.85 cm8.5 mm <br />0.0085 m <br /> (1.09 cm10.9 mm <br />0.0109 m <br />) +
Mentzelia multiflora subsp. longiloba +
Mentzelia longiloba var. longiloba +
Mentzelia longiloba +
variety +
perpendicular +  and slightly antrorse +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
dendritic +  and unbranched +
sinuous +  and straight +
perennial +  and biennial +
plant +, candelabra-form +  and bushlike +