Mentzelia longiloba var. yavapaiensis

J. J. Schenk & L. Hufford

Madroño 57: 258, figs. 4C, 5B. 2010.

Common names: Yavapai blazingstar
Endemic
Treatment appears in FNA Volume 12. Treatment on page 521. Mentioned on page 520.

Leaves: blades 39–72.4 × 4.3–19.1 mm, widest intersinus distance 2.3–7.1 mm; proximal with margins pinnate, lobes 14–24, slightly antrorse, 1–6.5 × 0.8–3.2 mm; distal with margins pinnate, lobes 8–20, slightly antrorse, 0.8–5.8 × 0.7–2.8 mm. Bracts: margins entire. Flowers: petals 11.6–18.4 × 2.9–6.8 mm; 5 outermost stamens with anthers. Seeds 3–3.4 mm; seed-coat anticlinal cell-walls sinuous, papillae 10–21 per cell. 2n = 18.


Phenology: Flowering Mar–Oct.
Habitat: Sandy washes, roadsides in grasslands.
Elevation: 400–1700 m.

Discussion

Variety yavapaiensis is found in all counties in Arizona.

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. J. Schenk & L. Hufford +
ridged +, tapering +  and rounded +
Mentzelia +
3.9 cm39 mm <br />0.039 m <br /> (7.24 cm72.4 mm <br />0.0724 m <br />) +
unlobed;lobed;orbiculate;obovate;unlobed;lobed;orbiculate;obovate;unlobed;lobed;orbiculate;obovate;oblanceolate;spatulate;linear;lanceolate;elliptic;ovate;cordate;deltate;hastate +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.71 cm7.1 mm <br />0.0071 m <br />) +
widest;4.3mm;19.1mm +
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 />) +
Yavapai blazingstar +
400–1700 m. +
curved +  and straight +
s--shaped +, clavate +, urceolate +, ovoid +, cylindric +, subcylindric +, lingulate +  and cup-shaped +
simple +  and complex +
Sandy washes, roadsides in grasslands. +
free +  and adnate +
unlobed +  and filiform +
cauline +  and basal +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.58 cm5.8 mm <br />0.0058 m <br />) +
0.7mm;2.8mm +
entire +  and pinnate +
toothed +  and pinnate +
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 +
1.16 cm11.6 mm <br />0.0116 m <br /> (1.84 cm18.4 mm <br />0.0184 m <br />) +
spreading +  and erect +
hairy +  and glabrous +
Obovate (?) +, Oblanceolate (?) +, Elliptic (?) +, Ovate (?) +  and Spatulate (?) +
0.29 cm2.9 mm <br />0.0029 m <br /> (0.68 cm6.8 mm <br />0.0068 m <br />) +
Flowering Mar–Oct. +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
flattened +  and ovoid +
persistent +
lanceolate +  and narrowly ovate +
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. yavapaiensis +
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 +