Yermo

Dorn

Madroño 38: 199, fig. 1. 1991.

Etymology: Spanish, an uninhabited and utterly inhospitable place
Treatment appears in FNA Volume 20. Treatment on page 634. Mentioned on page 543.
 TaxonIllustrator 
FNA20 P70 Lepidospartum latisquamum.jpegLepidospartum latisquamum
Yermo xanthocephalus
Tussilago farfara
Linny Heagy
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey

Perennials, 10–30+ cm (taprooted). Stems single or clustered, erect. Leaves basal and cauline (smaller distally); alternate; petiolate; blades (leathery) palmately 3-nerved (nerves ± parallel), lanceolate to ovate or obovate, margins entire or ± toothed, faces glabrous. Heads discoid, (25–180) in corymbiform to paniculiform arrays (terminal and in distal leaf-axils). Calyculi 0 or bractlets 1–3+. Involucres cylindric, 3–5 mm diam. Phyllaries persistent, (4–) 5 (–6) in 1–2 series (bright-yellow, drying pale, with greenish yellow midribs ± keeled in life), erect, distinct, oblanceolate or lanceolate to lance-linear, equal, margins scarious (apices cucullate, faces glabrous). Receptacles flat (sometimes with central cusp), smooth, epaleate. Ray-florets 0. Disc-florets (4–) 5 (–6), bisexual, fertile; corollas yellow, tubes longer than throats, lobes 5, spreading, linear; style-branches: stigmatic areas continuous, apices rounded-truncate (micro-characters tussilaginoid). Cypselae (brown) ellipsoid to oblanceoloid, slightly flattened, usually 10-ribbed, often short-hairy; pappi tardily falling, of 70+, whitish, barbellulate bristles.

Discussion

Species 1.

Selected References

None.

... more about "Yermo"
not tailed +, rounded +  and obtuse +
papillate +
rounded-truncate +
scarious +
usually ovate +  and lance-linear +
corymbiform +  and paniculiform +
indeterminate +  and determinate +
Robert D. Dorn +
decurrent +
lanceolate;ovate or obovate +
winged;nerved;ribbed +
flattened +, ellipsoid +  and oblanceoloid +
fertile +  and bisexual +
fertile +  and bisexual +
Spanish, an uninhabited and utterly inhospitable place +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
cauline +  and basal +
lanceolate +  and lance-linear +
dentate to pinnatifid +  and entire +
toothed +  and entire +
2-carpellate +
lanceolate +  and lance-linear +
unequal +  and subequal +
styliferous +, neuter +  and pistillate +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
conic;usually flat;convex +
exalbuminous +
appendaged +  and truncate +
papillate +
Compositae +
Asteraceae tribe Senecioneae +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
vine +, tree +, shrub +  and subshrub +