Eremalche exilis

(A. Gray) Greene

Leafl. Bot. Observ. Crit. 1: 208. 1906.

Basionyms: Malvastrum exile A. Gray in J. C. Ives, Rep. Colorado R. 4: 8. 1861
Synonyms: Sphaeralcea exilis (A. Gray) Jepson
Treatment appears in FNA Volume 6. Treatment on page 247.

Plants prostrate to decumbent; stems sometimes flushed with purple-maroon, branched or unbranched, 2–40 cm, obscurely stellate-hairy. Leaf-blades 3-cleft or 5-cleft or lobed to ± 1/2 to base, 1–2.5 cm wide, divisions entire or 3-toothed at tip. Inflorescences seldom exceeding leaves, sometimes basal. Pedicels 0.2–1 cm, longer in fruit; involucellar bractlets threadlike to linear, 3.3–5.5 (–7) mm. Flowers: calyx 4–5.5 (–7) mm, lobes 3–5 × 1.5–2.5 mm; petals white or pale rose-lavender, 4–5.5 mm, equaling calyx. Mericarps 9–13, brownish to blackish, ± wedge-shaped, cushionlike, 1.4–1.8 mm, margins rounded, radially corrugated. 2n = 20, 40.


Phenology: Flowering late winter–spring.
Habitat: Sandy or rocky desert soil
Elevation: 100–1500 m

Distribution

V6 447-distribution-map.jpg

Ariz., Calif., Nev., Utah, Mexico (Baja California), Mexico (Sonora)

Discussion

Eremalche exilis occurs in the Mojave and Sonoran deserts.

Selected References

None.

Lower Taxa

None.

... more about "Eremalche exilis"
David M. Bates +, Malvastrum A. Gray subsect. Pedunculosa A. Gray in A. Gray et al. +, Syn. Fl. N. Amer. 1(1 +  and 2): 308. 1897 +
(A. Gray) Greene +
truncate +  and cordate +
Malvastrum exile +
palmately +, unlobed +  and reniform-round +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
threadlike +  and linear +
0.33 cm3.3 mm <br />0.0033 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
lobed +  and not inflated +
not accrescent +
0.4 cm4 mm <br />0.004 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
indehiscent +  and loculicidal +
white +  and rose lavender or mauve drying purple or blue +
Ariz. +, Calif. +, Nev. +, Utah +, Mexico (Baja California) +  and Mexico (Sonora) +
3-toothed +  and entire +
reticulate +  and corrugate +
100–1500 m +
sparse;copious +
pistillate +  and staminate +
unisexual +  and bisexual +
Sandy or rocky desert soil +
tough-fibrous +
connate +  and distinct +
5-cleft or lobed +  and 3-cleft +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
simple +, stipulate +, sessile +, subsessile +  and petiolate +
distichous +  and alternate +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
acuminate +
1.5mm;2.5mm +
corrugated +
unarmed +  and 1-celled +
cushionlike +  and wedge--shaped +
0.14 cm1.4 mm <br />0.0014 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
9-36-carpellate +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
adnate +  and distinct +
0.4 cm4 mm <br />0.004 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
Flowering late winter–spring. +
Leafl. Bot. Observ. Crit. +
obovoid-reniform +
persistent +
sessile +  and subsessile +
unbranched +  and branched +
flushed with purple-maroon +
prostrate;erect +
2 cm20 mm <br />0.02 m <br /> (40 cm400 mm <br />0.4 m <br />) +
filiform +, linear +  and capitate +
1-2 times number of carpels +
9-36-branched +
Sphaeralcea exilis +
Eremalche exilis +
Eremalche +
species +