Euchiton gymnocephalus

(de Candolle) Holub

Folia Geobot. Phytotax. 9: 271. 1974.

Common names: Creeping-cudweed
Introduced
Basionym: Gnaphalium gymnocephalum de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 6: 235. 1838
Treatment appears in FNA Volume 19. Treatment on page 441.

Perennials or biennials, 5–40 cm; fibrous-rooted (rhizomatous); stolons usually present (leafy, rooting at nodes). Aerial stems simple or branched, thinly and persistently white-tomentose. Leaves: basal persistent in rosettes (blades oblanceolate to spatulate, 2–10 cm, bases narrowly cuneate, petioliform); cauline 2–4 (–6), blades linear to oblanceolate, 1–2 cm × 1–2 mm (even-sized), bases subclasping, margins revolute, abaxial faces silvery, tomentose, adaxial faces green, glabrous (shiny). Bracts subtending heads 2–3, 6–10 mm, not surpassing heads, plus some shorter. Heads in hemispheric clusters 10–20 mm diam. (sometimes with axillary clusters). Involucres 4–4.5 mm. Phyllaries tawny or rosy-tinged (shiny), oblong, apices rounded to obtuse. Pistillate florets 40–60. Bisexual florets 3–5. Pappus bristles distinct.


Phenology: Flowering May–Oct.
Habitat: Grassy open places in wooded areas, roadsides
Elevation: 100–800 m

Distribution

V19-729-distribution-map.gif

Introduced; Calif., Oreg., Pacific Islands (New Zealand), Australia

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Euchiton gymnocephalus"
rounded;obtuse +
scarious +
mostly ovate +  and lanceovate or linear +
racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Guy L. Nesom +
(de Candolle) Holub +
subclasping +
cuneate +
ampliate +
Gnaphalium gymnocephalum +
compound +  and simple +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
linear;oblanceolate +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
5-ribbed +, 3-ribbed +  and 2-ribbed +
muriculate +, papillate +  and smooth +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
2 (?) +  and 4 (?) +
Creeping-cudweed +
actinomorphic +
purplish +  and purple +
flattened +  and obovoid-ellipsoid +
Calif. +, Oreg. +, Pacific Islands (New Zealand) +  and Australia +
100–800 m +
papillate +
winged +  and beaked +
dispersed +
Grassy open places in wooded areas, roadsides +
indeterminate +
1 cm10 mm <br />0.01 m <br /> (?) +  and 2 cm20 mm <br />0.02 m <br /> (?) +
homogamous +  and heterogamous +
each +  and sessile +
narrowly campanulate;cylindric +
0.4 cm4 mm <br />0.004 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
rarely lanceovate +  and lanceolate +
2-carpellate +
persistent +
coherent +  and distinct +
Flowering May–Oct. +
Folia Geobot. Phytotax. +
bearing subulate enations +, hairy +  and bristly +
conic;more or less columnar +
exalbuminous +
Introduced +
branched +  and simple +
white-tomentose +
appendaged +  and truncate +
papillate +
Compositae +
Euchiton gymnocephalus +
Euchiton +
species +
biennial +  and perennial +
5 cm50 mm <br />0.05 m <br /> (40 cm400 mm <br />0.4 m <br />) +
shrub +  and subshrub +