Anoda cristata

(Linnaeus) Schlechtendal

Linnaea 11: 210. 1837.

Common names: Violeta
Weedy
Basionym: Sida cristata Linnaeus Sp. Pl. 2: 685. 1753
Synonyms: Anoda arizonica A. Gray A. hastata Cavanilles A. triangularis (Willdenow) de Candolle
Treatment appears in FNA Volume 6. Treatment on page 235. Mentioned on page 234.

Herbs, to 1 m, usually much shorter (quite variable). Stems suberect to decumbent, with patent or retrorse, simple hairs, hairs 1 mm. Leaves: petiole 1/2 times to equaling blade, hispid; blade concolorous, often with purple blotch along midvein, ovate, triangular, hastate, or sometimes palmately lobed, mostly 3–9 cm, membranous, base cordate, wide-rounded, or truncate, margins crenate to subentire, apex acute, surfaces sparsely hairy, hairs mostly simple, appressed, 1 mm. Inflorescences solitary flowers. Pedicels 4–12 cm, often exceeding leaf. Flowers: calyx 5–10 mm, accrescent to 12–20 mm, lobes without dark midrib, apex acute, hispid; petals purplish or lavender, rarely white, drying purplish, sometimes bluish, 8–26 (–30) mm; staminal column hairy; style 10–19-branched; stigmas glabrous. Schizocarps 8–11 mm diam. (excluding spines), densely hispid; mericarps 10–19, with dorsal spur 1.5–4 mm. Seeds with or without enclosing endocarp. 2n = 30, 60, 90.


Phenology: Flowering summer–fall.
Habitat: Usually weedy in disturbed areas, fence rows, agricultural fields
Elevation: 0–2300 m

Distribution

V6 419-distribution-map.jpg

Ont., Ariz., Calif., Fla., Ga., Ill., Iowa, Kans., Ky., La., Mass., Miss., Mo., N.Mex., N.C., Okla., Pa., S.C., Tex., Va., Mexico, West Indies, Central America, South America, in Australia

Discussion

Anoda cristata appears to be increasing its range in North America and elsewhere. It is quite variable, with either a decumbent to suberect habit and with varied flower sizes. The weedy form has generally small flowers while those to the south in Mexico have showy larger flowers even used in floral arrangements.

Selected References

None.

Lower Taxa

None.
... more about "Anoda cristata"
90 +, 60 +  and 30 +
Paul A. Fryxell† +  and Steven R. Hill +
(Linnaeus) Schlechtendal +
truncate +, wide-rounded +  and cordate +
Sida cristata +
concolorous +
lobed +, hastate +, triangular +  and ovate +
3 cm30 mm <br />0.03 m <br /> (9 cm90 mm <br />0.09 m <br />) +
ribbed +, not inflated +  and not , +
accrescent +
1.2 cm12 mm <br />0.012 m <br /> (2 cm20 mm <br />0.02 m <br />) +
indehiscent +  and loculicidal +
Violeta +
white +, purplish +, lavender +  and yellow +
Ont. +, Ariz. +, Calif. +, Fla. +, Ga. +, Ill. +, Iowa +, Kans. +, Ky. +, La. +, Mass. +, Miss. +, Mo. +, N.Mex. +, N.C. +, Okla. +, Pa. +, S.C. +, Tex. +, Va. +, Mexico +, West Indies +, Central America +, South America +  and in Australia +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0–2300 m +
sparse;copious +
pistillate +  and staminate +
unisexual +  and bisexual +
oblate +  and not inflated +
Usually weedy in disturbed areas, fence rows, agricultural fields +
retrorse +  and patent +
1 cm10 mm <br />0.01 m <br /> (1 cm10 mm <br />0.01 m <br />) +
axillary +  and terminal +
tough-fibrous +
connate +  and distinct +
dehiscent +  and disintegrating +
simple +, stipulate +, sessile +, subsessile +  and petiolate +
distichous +  and alternate +
ovate +  and triangular +
dentate +  and entire +
crenate;subentire +
wedge--shaped +
3-40-carpellate +
(1-)2-many +
4 cm40 mm <br />0.04 m <br /> (12 cm120 mm <br />0.12 m <br />) +
2.6 cm26 mm <br />0.026 m <br /> (3 cm30 mm <br />0.03 m <br />) +
adnate +  and distinct +
0.8 cm8 mm <br />0.008 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
1/2 times to equaling blade +
Flowering summer–fall. +
8mm +  and 11mm +
hairy +  and glabrous +
reniform +
persistent +
sessile +  and subsessile +
suberect;decumbent +
filiform +, linear +  and capitate +
1-2 times number of carpels +
inconspicuous +
10-19-branched +
Anoda arizonica +, A. hastata +  and A. triangularis +
Anoda cristata +
species +
monoecious +, dioecious +  and hermaphroditic +