Abutilon reventum

S. Watson

Proc. Amer. Acad. Arts 21: 418. 1886. 1886

Treatment appears in FNA Volume 6. Treatment on page 226. Mentioned on page 220, 222.

Herbs, annual, or subshrubs, to 2 m. Stems erect, usually reddish or purplish, minutely glandular-pubescent to glabrate, without simple hairs, obscurely viscid. Leaves: stipules lost early and seldom observed, subulate; petiole subequal to blade; blade markedly discolorous, broadly round-ovate, 8–10 (–20) cm, ± as long as wide, base deeply cordate, margins obscurely serrulate, apex acuminate, surfaces softly pubescent. Inflorescences terminal panicles. Flowers: calyx 3–6 mm, lobes not overlapping, not reflexed in fruit, lanceolate-ovate, to 8 mm wide; corolla pale-yellow throughout, petals 9–15 mm; staminal column glabrous; style 10-branched. Schizocarps globose, 7–10 mm; mericarps: apex rounded or obtuse, stellate-tomentose. Seeds 3 per mericarp, 2.5–3 mm, sparsely reticulately scabridulous.


Phenology: Flowering late summer.
Habitat: Arid hillsides, along water courses
Elevation: 1000–1500 m

Discussion

Abutilon reventum ranges in western Mexico from Chihuahua and Sonora to Oaxaca. It is also found at adjacent sites in Pima County, southern Arizona.

Selected References

None.

Lower Taxa

None.

... more about "Abutilon reventum"
stellate-tomentose +
Paul A. Fryxell† +  and Steven R. Hill +
S. Watson +
cordate +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
discolorous +
round-ovate +
8 cm80 mm <br />0.08 m <br /> (10 cm100 mm <br />0.1 m <br />) +
not inflated +
not accrescent +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
indehiscent +  and loculicidal +
Ariz. +  and Mexico +
1000–1500 m +
sparse;copious +
pistillate +  and staminate +
unisexual +  and bisexual +
not setose +  and hairy +
cylindric +, cask--shaped +, oblate +, ovoid +, globose +  and not inflated +
Arid hillsides, along water courses +
axillary +  and terminal +
tough-fibrous +
connate +  and distinct +
simple +, stipulate +, sessile +, subsessile +  and petiolate +
distichous +  and alternate +
not reflexed +
lanceolate-ovate +
0mm;8mm +
wedge--shaped +
3-40-carpellate +
adnate +  and distinct +
0.9 cm9 mm <br />0.009 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
subequal +
Flowering late summer. +
Proc. Amer. Acad. Arts +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
puberulent +
scabridulous +
turbinate +
2.5mm +  and 3mm +
persistent +
sessile +  and subsessile +
exserted +  and included +
purplish +  and reddish +
filiform +, linear +  and capitate +
1-2 times number of carpels +
Mallow +
Abutilon reventum +
Abutilon +
species +
subshrub +  and herb +
monoecious +, dioecious +  and hermaphroditic +
0 cm0 mm <br />0 m <br /> (200 cm2,000 mm <br />2 m <br />) +