Tussilago

Linnaeus

Sp. Pl. 2: 865. 1753.

,

Gen. Pl. ed. 5, 372. 1754.

Common names: Coltsfoot
Etymology: Said to be based on Latin tussi s, cough, for which the plant has a medicinal reputation
Treatment appears in FNA Volume 20. Treatment on page 635. Mentioned on page 541.
 TaxonIllustrator 
FNA20 P70 Lepidospartum latisquamum.jpegLepidospartum latisquamum
Yermo xanthocephalus
Tussilago farfara
Linny Heagy
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey

Perennials, 5–30 (–50) cm (rhizomes fibrous-rooted, creeping; plants forming extensive colonies). Stems usually 1, erect (scapiform, not branched). Leaves basal and cauline (basal usually developing after flowers); alternate; petiolate (petiole lengths 1–2 times blades) or sessile; blades (basal) palmately nerved, orbiculate to polygonal or lobed (cauline leaves lanceovate to linear, bractlike or scalelike), margins denticulate, abaxial faces gray-tomentose, adaxial tomentulose, glabrescent. Heads (erect at flowering, nodding in fruit) radiate, borne singly. Calyculi 0 (or indistinct, bractlets intergrading with bractlike cauline leaves). Involucres cylindric to subturbinate, 10–15 mm diam. (larger in fruit). Phyllaries persistent, usually ± 21 in (1–) 2 series, erect, distinct, lance-linear to linear, subequal, margins scarious (apices greenish or yellow-green). Receptacles convex, foveolate (socket margins ± membranous), epaleate. Ray-florets 100–200 (–300+), pistillate, fertile; corollas yellow (drying pinkish). Disc-florets (20–) 30–40, functionally staminate; corollas yellowish, tubes longer than campanulate throats, lobes 5, erect, linear; styles not divided. Cypselae narrowly cylindric or ± prismatic, 5 (–10) -ribbed, glabrous; pappi readily falling or fragile, of 60–100+, white, barbellulate or smooth bristles. x = 30.

Distribution

Introduced; temperate Eurasia, n Africa

Discussion

Species 1.

Lower Taxa

... more about "Tussilago"
glabrescent +  and tomentulose +
not tailed +, rounded +  and obtuse +
papillate +
deltate;lanceolate or penicillate +
scarious +
usually ovate +  and lance-linear +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Theodore M. Barkley† +
Linnaeus +
decurrent +
orbiculate;polygonal or lobed +
winged;nerved;ribbed +
smooth +  and barbellulate +
Coltsfoot +
yellowish +  and yellow +
prismatic +  and cylindric +
fertile +  and bisexual +
temperate Eurasia +  and n Africa +
Said to be based on Latin tussi s, cough, for which the plant has a medicinal reputation +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
cylindric;subturbinate +
sessile +  and petiolate +
cauline +  and basal +
lanceolate +  and lance-linear +
dentate to pinnatifid +  and entire +
denticulate +
2-carpellate +
lance-linear +  and linear +
Sp. Pl. +  and Gen. Pl. ed. +
1753 +  and 1754 +
bearing subulate enations +, hairy +  and bristly +
morton1978a +
exalbuminous +
appendaged +  and truncate +
papillate +
not divided +
Compositae +
Tussilago +
Asteraceae tribe Senecioneae +
campanulate +
30 cm300 mm <br />0.3 m <br /> (50 cm500 mm <br />0.5 m <br />) +
5 cm50 mm <br />0.05 m <br /> (30 cm300 mm <br />0.3 m <br />) +
vine +, tree +, shrub +  and subshrub +