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Calyptocarpus
Family:
Asteraceae
Patrick Alexander
FNA
Resources
John L. Strother in Flora of North America (vol. 21)
Perennials,
to 30 cm.
Stems
prostrate to decumbent, branched throughout.
Leaves
cauline; opposite; petiolate; blades (± 3-nerved) deltate to ovate or lanceolate, bases cuneate to truncate, margins toothed, faces ± scabrellous.
Heads
radiate, borne singly (in axils).
Involucres
obconic, 3-8 mm diam.
Phyllaries
persistent, 5 in 1(-2) series (linear to lanceolate, herbaceous).
Receptacles
convex, paleate (paleae persistent, scarious).
Ray florets
3-8, pistillate, fertile; corollas pale yellow.
Disc florets
10-20, bisexual, fertile; corollas yellow, tubes shorter than funnelform throats, lobes 4-5, ± deltate.
Cypselae
compressed or flattened, cuneate (faces often tuberculate);
pappi
persistent, of 2(-5+) stout awns.
x
= 12.
Calyptocarpus vialis
Map not
Available