Helichrysum lineare Dc.

Species

Angiosperms > Asterales > Asteraceae > Helichrysum

Characteristics

Perennial herb with a long stout taproot, woody with age, branches up to ±200 mm long, many spreading from the crown, prostrate or rarely decumbent, simple below, corymbosely branched above especially in old plants, thinly white-woolly, closely leafy. Leaves 5-10(-13) x 0.75-1(-4) mm, more or less spreading, linear or lingulate, obtuse, sessile, margins revolute, rarely only weakly so, both surfaces white-woolly, upper often glabrescent, glandular-punctate, viscid. Heads homogamous, cylindric, ±4 x 2 mm, in small glomerules at the branch tips, closely surrounded by leaves. Involucral bracts in ±6 series, outermost short, webbed to the surrounding leaves with wool, persistent, inner subequal, erect, tips subacute to obtuse, often erose, usually opaque white, rarely buff or pinkish, shafts pellucid, colourless or reddish, soon caducous. Receptacle conical, tuberculate. Flowers 8-14, yellow, sometimes tipped pink. Achenes not seen, ovaries with myxogenic duplex hairs or hairs sometimes few or wanting. Pappus bristles many, equalling corolla, scabrid, bases with patent cilia not cohering. Flowers mainly between August and December, sometimes as early as April to July.
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Perennial herb; procumbent or rarely decumbent, with branches loosely spreading, up to 200 mm long, thinly white-woolly, closely leafy. Leaves: blade linear or lingulate, 5-10(-13) x 0.75-1.00(-4.00) mm, apex obtuse, margins revolute, both surfaces white-woolly. Heads discoid, cylindric, ± 4 x 2 mm, in small glomerules at branch tips, closely surrounded by leaves. Involucral bracts in ± 6 series, outermost short, webbed to surrounding leaves with wool, inner subequal, erect, tips subacute to obtuse, often erose, opaque white, rarely buff-coloured or pinkish, not radiating, stereome divided. Receptacle epaleate, tuberculate. Flowers: disc florets only, 8-14; corolla narrowly funnel-shaped, yellow, sometimes tipped pink; Aug.-Feb. Fruit with cypsela? (and ovary) hairy or glabrous. Pappus of many barbellate bristles, bases with patent cilia not cohering.
Perennial herb, branches up to 0.2 m long, prostrate or decumbent, thinly white-woolly, closely leafy. Leaves 5-13 x 0.75-4.00 mm, ± spreading, ± linear, obtuse, both sides white-woolly, upper surface ± glabrescent, glandular-punctate, viscid. Capitula cylindric, ± 4 x 2 mm, in small, terminal glomerules; involucral bracts in ± 6 series, outer short, webbed to leaves below, persistent, inner subequal, apex ± subacute, ± erose, white, colourless or ± red. Receptacle conical, tuberculate. Flowers 8-14, yellow, sometimes tipped pink. Flowering time Aug.-Dec. Pappus of many bristles, equalling corolla, bases with patent cilia not cohering.
Prostrate or decumbent perennial herb. Leaves 5-10 (-13) x 0.75-1.00(-4.00) mm, linear or Ungulate, margins revolute, both surfaces white-woolly. Heads cylindric, in small glomerules at branch tips. Flowers yellow, sometimes tipped pink; involucral bracts opaque white, rarely buff or pinkish.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
Root system tap-root
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity 4-9
Soil texture 3-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

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 -

Images

Helichrysum lineare unspecified picture

Distribution

Helichrysum lineare world distribution map, present in Botswana, Lesotho, Namibia, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:212980-1
WFO ID wfo-0000124050
COL ID 3K6WH
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Helichrysum seineri Helichrysum lineare Gnaphalium lineare Helichrysum lineare var. lineare