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The Texas Oklahoma Regional Consortium of Herbaria
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Calendula arvensis
M.Bieb.
Family:
Asteraceae
Field-Marigold
[
Calendula aegyptiaca var. suberostris
,
more
Calendula gracilis
DC.,
Calendula persica
]
FNA
Resources
Theodore M. Barkley+, Luc Brouillet, John L. Strother in Flora of North America (vol. 19, 20 and 21)
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.
2
n
= 44 (18 and 36 have been reported).
Flowering Feb-Apr. Disturbed places; 0-200 m; introduced; Calif.; Eurasia; Africa; Atlantic Islands.
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