Helichrysum leptorhizum Dc.

Species

Angiosperms > Asterales > Asteraceae > Helichrysum

Characteristics

Delicate annual herb ±60 mm tall, stems several from the base, weakly erect, filiform, simple below, weakly branched above, thinly and loosely greyish-white woolly, glabrescent, distantly leafy. Leaves 5-15 x 2.5-4 mm, lower oblanceolate, much narrowed to the base, becoming spathulate to elliptic upwards, apex subacute to obtuse, apiculate, both surfaces thinly greyish white-woolly cobwebby. Heads heterogamous, campanulate, ±3 x 1.5-2 mm, 2 or 3 together on minute branchlets in the upper leaf axils and at the branchlet tips, shortly pedunculate. Involucral bracts in ±5 series, graded, outer pale golden-brown, pellucid, inner about equalling flowers, brown flushed crimson, tips obtuse, more or less opaque whitish, not radiating. Receptacle scarcely honeycombed. Flowers ±19-22, 10-11 female, 9-11 homogamous. Achenes 0.75 mm long, with myxogenic duplex hairs. Pappus bristles about equalling corolla, scabrid, bases with minute patent cilia, not cohering.
More
Like H. alsinoides but involucral bracts brown flushed crimson, inner tipped white.
Life form annual
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.06
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-11

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 7 - 10
Germination temperacture (C°) 18 - 23
Germination luminosity light
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Helichrysum leptorhizum world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:212968-1
WFO ID wfo-0000028492
COL ID 3K6W5
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Gnaphalium leptorhizum Helichrysum leptorhizum