Helichrysum petiolare

Hilliard & B. L. Burtt

Notes Roy. Bot. Gard. Edinburgh 32: 357. 1973.

Common names: Licorice plant trailing dusty miller
Treatment appears in FNA Volume 19. Treatment on page 426.

Shrubs or subshrubs, aromatic, to 60 cm. Stems loosely branched, straggling. Leaves petiolate; blades ovate, 1–2 cm, apices obtuse to subacute, faces concolor, silvery green, woolly-tomentose. Phyllaries creamy white.


Phenology: Flowering summer.
Habitat: "Shrubby plants forming a dense thicket on the slope of Bolinas Ridge above Stinson Beach" (J. T. Howell 1970)
Elevation: 300–600 m

Distribution

V19-702-distribution-map.gif

Introduced; Calif., s Africa (Cape region), in Europe

Discussion

The species is included among the invasive species of California (C. C. Bossard et al. 2000); it is native to the Cape region of South Africa, long cultivated in Europe, and now widely offered for sale on the internet. In contrast to the assessment of invasiveness in California, one commercial website selling the species notes this “forms tangled mounds of trailing grey-felted leaves. Given something to scramble up, it will climb. And although this description makes it sound fairly rampant, it is definitely not invasive.” It is often recommended for planters and hanging baskets, where the silvery leaves provide backdrop for bright colors.

The name Helichrysum petiolatum D. Don has been misapplied to plants of H. petiolare.

Selected References

None.

Lower Taxa

None.
... more about "Helichrysum petiolare"
obtuse;subacute +
scarious +
mostly ovate +  and lanceovate or linear +
indeterminate +  and determinate +
Guy L. Nesom +
Hilliard & B. L. Burtt +
cuneate to truncate +
compound +  and simple +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
5-ribbed +, 3-ribbed +  and 2-ribbed +
muriculate +, papillate +  and smooth +
Licorice plant +  and trailing dusty miller +
actinomorphic +
Calif. +, s Africa (Cape region) +  and in Europe +
300–600 m +
sessile-glandular +  and stipitate +
silvery green;concolor +
woolly-tomentose +
papillate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
"Shrubby plants forming a dense thicket on the slope of Bolinas Ridge above Stinson Beach" (J. T. Howell 1970) +
discoid +  and disciform +
singly +  and aggregated +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
campanulate +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
rarely lanceovate +  and lanceolate +
2-carpellate +
persistent +
coherent +  and distinct +
12 +  and 20 +
Flowering summer. +
subequal +  and unequal +
Notes Roy. Bot. Gard. Edinburgh +
conic;more or less columnar +
4 +  and 6 +
exalbuminous +
decumbent +  and procumbent +
appendaged +  and truncate +
papillate +
Compositae +
Helichrysum petiolare +
Helichrysum +
species +
perennial +  and annual +
subshrub +  and shrub +