Scabrethia

W. A. Weber

Phytologia 85: 20. 1999.

Etymology: Latin scabra, rough, and related genus Wyethia
Treatment appears in FNA Volume 21. Treatment on page 99. Mentioned on page 65, 100.
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 TaxonIllustrator 
FNA21 P14 Balsamorhiza rosea.jpegBalsamorhiza rosea
Scabrethia scabra subsp. scabra
Wyethia mollis
John Myers
John Myers
John Myers

Perennials, 20–60 cm (taproots often relatively massive; caudices unbranched or multibranched). Stems erect, seldom branched (usually white in age). Leaves mostly cauline (proximal scalelike); mostly alternate, sometimes opposite; sessile or nearly so; blades (mid and distal, usually 1 or ± 3-nerved, laterals weaker than midribs) narrowly oblong to linear, bases ± cuneate, margins entire, faces hispid to scabrous, glabrescent (then usually roughened by persistent hair-bases). Heads radiate, borne singly (peduncles sometimes bracteate). Involucres hemispheric to turbinate, (13–) 20–30 (–40) mm diam. Phyllaries persistent, 30–45+ in 3–4+ series (subequal to unequal, outer often surpassing inner). Receptacles flat to convex, paleate (paleae conduplicate, papery). Ray-florets (8–) 10–18 (–21), pistillate, fertile; corollas yellow. Disc-florets 40–120+, bisexual, fertile; corollas yellow, tubes much shorter than cylindric throats, lobes 5, ± deltate (style-branches stigmatic in 2 barely distinct lines, appendages filiform). Cypselae ± prismatic, (3–) 4-angled (faces glabrous, smooth or finely honeycombed); pappi persistent, coroniform, ± lacerate. x = 19.

Distribution

w United States

Discussion

Species 1.

Selected References

None.

Lower Taxa

"broader" is not a number.

... more about "Scabrethia"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +, corymbiform +  and cymiform +
indeterminate +  and determinate +
William A. Weber +
W. A. Weber +
bristlelike +
coroniform +
cuneate +
compound +  and simple +
narrowly oblong;linear +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
hairy +  and glabrous +
(3-)4-angled +  and prismatic +
fertile +  and bisexual +
fertile +  and bisexual +
w United States +
Latin scabra, rough, and related genus Wyethia +
glabrescent +, hispid +  and scabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
hemispheric;turbinate +
nearly +  and sessile +
opposite +  and alternate +
deltate +
2-carpellate +
persistent +
lacerate +  and coroniform +
30 +  and 45 +
unequal +  and subequal +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Enceliinae +, Undefined (tribe Undefined) subtribe Engelmanniinae +, Undefined (tribe Undefined) subtribe Spilanthinae +, Undefined (tribe Undefined) subtribe Verbesininae +  and Undefined (tribe Undefined) subtribe Zinniinae +
Scabrethia +
Asteraceae (tribe Heliantheae) subtribe Ecliptinae +
cylindric +
cylindric +
shorter to longer than campanulate +
toothed +  and entire +
20 cm200 mm <br />0.2 m <br /> (60 cm600 mm <br />0.6 m <br />) +
200 cm2,000 mm <br />2 m <br /> (400 cm4,000 mm <br />4 m <br />) +
shrub +  and subshrub +