Ambrosia confertiflora

de Candolle in A. P. de Candolle and A. L. P. P. de Candolle

in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 526. 1836.

Synonyms: Franseria confertiflora (de Candolle) Rydberg
Treatment appears in FNA Volume 21. Treatment on page 18. Mentioned on page 11.

Perennials, 20–80 (–150+) cm. Stems erect. Leaves mostly alternate; petioles 10–35 mm; blades lanceolate to ovate, 40–85 (–150) × 20–35 (–55) mm overall, laciniately 2–4-pinnately lobed (lobes ± lanceolate); bases cuneate to truncate, ultimate margins entire, abaxial and adaxial faces strigillose to sericeous (often grayish) and glanddotted. Pistillate heads clustered, proximal to staminates; florets 1 (–2). Staminate heads: peduncles 0.5–2 mm; involucres cupshaped, 1.5–3+ mm diam., strigillose; florets 5–20+. Burs: bodies pyramidal to pyriform, 1–2 mm, strigillose to pilosulous, spines (1–) 5–12+, mostly distal, stoutly conic to subulate, 0.5–1 mm, tips uncinate. 2n = 72, 108.


Phenology: Flowering (May–)Sep–Dec.
Habitat: Waste places, disturbed sites
Elevation: 10–2000 m

Distribution

V21-23-distribution-map.gif

Ariz., Calif., Colo., Kans., N.Mex., Okla., Tenn., Tex., Utah, Mexico

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Ambrosia confertiflora"
not tailed +, rounded +  and obtuse +
coherent +  and distinct +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +, glomerate +  and corymbiform +
indeterminate +  and determinate +
John L. Strother +
de Candolle in A. P. de Candolle and A. L. P. P. de Candolle +
cuneate +  and truncate +
compound +  and simple +
8.5 cm85 mm <br />0.085 m <br /> (15 cm150 mm <br />0.15 m <br />) +
3.5 cm35 mm <br />0.035 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
4 cm40 mm <br />0.04 m <br /> (8.5 cm85 mm <br />0.085 m <br />) +
lobed;lanceolate;ovate +
20mm;35mm +
winged;ribbed;winged;ribbed +
strigillose +  and pilosulous +
tuberculate +  and rugose +
pyramidal;pyriform +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
barbellulate +  and barbellate +
purplish +  and whitish +
villous +, strigillose +, hispidulous +, glabrous +  and warty +
tuberculate +
globose +  and obovoid pyramidal pyriform obconic or fusiform +
fertile +  and bisexual +
Ariz. +, Calif. +, Colo. +, Kans. +, N.Mex. +, Okla. +, Tenn. +, Tex. +, Utah +  and Mexico +
10–2000 m +
stipitate-glandular +, glabrate +  and hairy +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Waste places, disturbed sites +
staminate +  and pistillate +
in corymbiform , glomerate , paniculiform , racemiform or spiciform , arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
membranous +  and scarious +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
cup-shaped +
conspicuous +
petiolate +  and sessile +
incurved;erect +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
connate +  and distinct +
2-carpellate +
stipitate-glandular +, hirtellous +  and villous +
spatulate;linear +
membranous +
persistent +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
1 cm10 mm <br />0.01 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Flowering (May–)Sep–Dec. +
5 +  and 16 +
unequal +  and subequal +
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. +
bearing subulate enations +, hairy +  and bristly +
convex;flat +
exalbuminous +
5 (?) +  and 12 (?) +
stoutly conic +  and subulate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
prostrate +  and decumbent +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Franseria confertiflora +
Ambrosia confertiflora +
Ambrosia +
species +
campanulate +  and cylindric +
uncinate +
toothed +  and entire +
80 cm800 mm <br />0.8 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
20 cm200 mm <br />0.2 m <br /> (80 cm800 mm <br />0.8 m <br />) +