Sphaeralcea laxa

Wooton & Standley

Bull. Torrey Bot. Club 36: 108. 1909.

Common names: Caliche globemallow
Synonyms: Sphaeralcea incana var. dissecta A. Gray S. ribifolia Wooton & Standley
Treatment appears in FNA Volume 6. Treatment on page 366. Mentioned on page 358, 363.

Plants perennial. Stems ascending, (2–) 4–7 (–9) dm, densely gray or white-tomentose. Leaf-blades gray or white, broadly ovate-deltate, 3-lobed or 3-parted or 5-parted, (1–) 1.5–5 cm, not rugose, base typically distinctly truncate (to cordate), margins crenate, surfaces stellate-pubescent. Inflorescences paniculate, open, few-flowered, individual flowers widely spaced, tip not leafy; involucellar bractlets red to purple. Flowers: sepals 7–11 mm; petals red-orange, 12–18 mm; anthers usually purple. Schizocarps truncate-ovoid; mericarps 11–16, 4–6 × 2–3 mm, thin-walled, papery, nonreticulate dehiscent part 55–65% of height, tip acute-cuspidate, cusp 1 mm, indehiscent part not wider than dehiscent part, sides prominently, finely reticulate with ± transparent areolae. Seeds 2 or 3 per mericarp, gray, pubescent. 2n = 10, 20.


Phenology: Flowering early spring–late fall.
Habitat: Rock outcrops and caliche
Elevation: 600–1900 m

Distribution

V6 671-distribution-map.jpg

Ariz., N.Mex., Tex., Mexico (Sonora)

Discussion

Selected References

None.

Lower Taxa

None.

"not wider" 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 "Sphaeralcea laxa"
acute;truncate;acute;truncate +
transparent +
John La Duke +
Wooton & Standley +
truncate +  and cordate +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
white +  and gray +
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
5-parted;3-parted;3-lobed;ovate-deltate +
asymmetric +  and symmetric +
ovate +  and triangular trullate or cordate unlobed or pedately dissected +
truncate-spheric +, helmet--shaped +, short-urceolate +, ellipsoid +, truncate-ovoid +, spheric +, truncate-conic +, conic +, hemispheric +, flattened-spheric-conic +, flattened-spheric +, ovoid +, cylindric +  and inflated +
indehiscent +  and loculicidal +
Caliche globemallow +
Ariz. +, N.Mex. +, Tex. +  and Mexico (Sonora) +
600–1900 m +
sparse;copious +
thread-like +
pistillate +  and staminate +
in axillary cymose racemes +  and fascicled +
unisexual +  and bisexual +
Rock outcrops and caliche +
few-flowered +  and open +
axillary +  and terminal +
tough-fibrous +
connate +  and distinct +
sessile +  and petiolate +
distichous +  and alternate +
entire +  and serrate +
tan +  and brown +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
wedge--shaped +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
3-40-carpellate +
(1-)2-many +
dehiscent +  and indehiscent +
adnate +  and distinct +
1.2 cm12 mm <br />0.012 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
Flowering early spring–late fall. +
Bull. Torrey Bot. Club +
truncate-ovoid +
reniform +
persistent +
0.7 cm7 mm <br />0.007 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
sessile +  and subsessile +
white-tomentose +
filiform +, linear +  and capitate +
1-2 times number of carpels +
deciduous +  and persistent +
unbranched +  and branched +
stellate-pubescent +
Sphaeralcea incana var. dissecta +  and S. ribifolia +
Sphaeralcea laxa +
Sphaeralcea +
species +
monoecious +, dioecious +  and hermaphroditic +