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Senecio ampullaceus
Hook.
Family:
Asteraceae
Texas Ragwort
[
Senecio ampullaceus var. floccosus
,
more
Senecio ampullaceus var. glaberrimus
Engelm. & A. Gray
]
FNA
Resources
Theodore M. Barkley+ in Flora of North America (vol. 20)
Annuals,
(10-)20-80 cm (roots relatively thin, branching).
Herbage
loosely arachno-tomentose, unevenly glabrate or glabrescent.
Stems
single.
Leaves
progressively reduced distally; petiolate (petioles broadly winged); blades ovate-lanceolate, 3-8(-10) × (1-)1.5-3(-4) cm, bases tapered or ± truncate, margins dentate to subentire (mid leaves subsessile, lanceolate; distal subulate, bractlike).
Heads
(1-)10-30 in corymbiform arrays.
Calyculi
of 2-8 bractlets (1-2+ mm).
Phyllaries
± 13, (6-)7-10 mm, tips green to grayish.
Ray florets
± 8; corolla laminae 8-15 mm.
Cypselae
hirtellous.
Flowering early-mid spring. Open sandy or disturbed sites; 100-800 m; Tex.
Senecio ampullaceus
has been reported for Arkansas and Missouri (St. Louis). It is similar to
S. quaylei
.
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