Calendula arvensis

Linnaeus

Sp. Pl. ed. 2, 2: 1303. 1763.

Introduced
Treatment appears in FNA Volume 19. Treatment on page 382.

Leaf-blades (1–) 3–8 (–10+) cm × 4–15 (–20+) mm. Peduncles 3–5 cm. Phyllaries 13–21+, 6–10+ mm. Ray-florets 13–18+; corolla laminae 5–8 (–12+) mm. Disc-florets 20–30+; corollas 2.5–4 mm. Cypselae 3–12 (–25+) mm. 2n = 44 (18 and 36 have been reported).


Phenology: Flowering Feb–Apr.
Habitat: Disturbed places
Elevation: 0–200 m

Distribution

V19-619-distribution-map.gif

Introduced; Calif., Eurasia, Africa, Atlantic Islands

Discussion

Selected References

None.

Lower Taxa

None.

"broader" is not a number.

... more about "Calendula arvensis"
scarious +
ovate +  and deltate +
penicillate +
indeterminate +  and determinate +
John L. Strother +
Linnaeus +
decurrent +
compound +  and simple +
oblong;oblanceolate spatulate or linear +
tuberculate +
discernible +
zygomorphic +, actinomorphic +  and (3-)5-merous +
purplish +, reddish +, yellow +  and orange +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
flattened +, compressed +, obcompressed +, less columnar +  and prismatic +
fertile +  and bisexual +
Calif. +, Eurasia +, Africa +  and Atlantic Islands +
0–200 m +
stipitate-glandular +  and arachnose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Disturbed places +
indeterminate +
heterogamous +
each +  and sessile +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
campanulate;hemispheric +
linear +  and oblanceolate +
8 cm80 mm <br />0.08 m <br /> (10 cm100 mm <br />0.1 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
petiolate +  and sessile +
opposite +  and alternate +
deltate +
dentate +  and entire +
denticulate +  and entire +
2-carpellate +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Flowering Feb–Apr. +
13 +  and 21 +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Sp. Pl. ed. +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
Introduced +
appendaged +  and truncate +
papillate +
Compositae +
Calendula arvensis +
Calendula +
species +
campanulate +
50 cm500 mm <br />0.5 m <br /> (70 cm700 mm <br />0.7 m <br />) +
perennial +  and annual +
5 cm50 mm <br />0.05 m <br /> (50 cm500 mm <br />0.5 m <br />) +
tree +  and shrub +