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Rainiera
Family:
Asteraceae
FNA
Resources
John L. Strother in Flora of North America (vol. 20)
Perennials,
mostly 30-100 cm (rhizomes fibrous-rooted).
Stems
usually 1, erect (seldom branched, fistulose).
Leaves
basal and cauline; alternate; petiolate; blades palmately (± parallel) nerved, oblanceolate to spatulate, margins entire or toothed, faces glabrous or glabrate.
Heads
discoid, (30-70+) in racemiform or subthyrsiform arrays.
Calyculi
0.
Involucres
turbinate to cylindric, 3-4+ mm diam.
Phyllaries
persistent, (4-)5(-8) in 1-2 series, erect, distinct, ovate to lanceolate, subequal, margins scarious (± keeled along mid-nerves, abaxially arachno-tomentose).
Receptacles
flat, alveolate, epaleate.
Ray florets
0.
Disc florets
(4-)5(-8), bisexual, fertile; corollas usually yellow, rarely purple-tinged, tubes longer than cylindric throats, lobes 5, erect to spreading, lanceolate; style branches stigmatic in 2 lines, apices rounded-truncate.
Cypselae
(brown) ± terete, 10-20-nerved, glabrous;
pappi
persistent, of 150-200, white or stramineous, barbellulate bristles (in 3-4 series).
Show all taxa
Rainiera stricta
Development supported by National Science Foundation Grants (
DBI 9983132
,
BRC 0237418
,
DBI 0743827
,
DBI 0847966
)
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