Helichrysum odoratissimum Sweet

Species

Angiosperms > Asterales > Asteraceae > Helichrysum

Characteristics

A much branched bushy or straggling aromatic perennial herb, stems often decumbent and rooting at the base and becoming woody there, erect or sprawling, glandular, generally thinly greyish-white woolly, wool sometimes wanting, very leafy, the branchlets becoming pedunculoid upwards with distant reduced leaves or bracts. Leaves very variable, 5-60 x 1.5-15 mm, linear-oblong, lanceolate, ungulate or spathulate, apex generally obtuse, sometimes acute, mucronate, base narrowed or broad, clasping, generally decurrent in long narrow or broad stem wings, wings sometimes wanting, glandular and setose-scabrid above, generally thinly or thickly greyish-white woolly on both surfaces, sometimes without wool or glabrescent above. Heads heterogamous, ±2.5-3 mm long, very many matted together with wool at the base in dense or loose, flattened or rounded, terminal cymose clusters. Involucral bracts closely imbricate, innermost about equalling the flowers, not radiating, pellucid, outer pale brown, inner bright or pale canary-yellow. Receptacle with fimbrils about equalling the ovaries. Flowers (3-)7-15, (1-)2-4 female, (2-)5-11 homogamous, yellow. Achenes 0.75 mm, barrel-shaped, with duplex hairs. Pappus bristles many, scabrid, bases cohering by patent cilia. Flowering recorded in all months, mainly from August to December in the SW. Cape, January to June elsewhere.
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Perennial herb or woody herb, 0.3–1 m high, sometimes scrambling to 2 m, erect or sprawling, much branched; stems often decumbent and rooting at the base, glandular, thinly white-or grey-lanate, often winged with thin or broad wings.. Leaves smelling of curry, linear to lanceolate or oblanceolate, 0.5–6 cm long, 0.2–1.5 cm wide, base narrowed or broad and clasping, usually decurrent into stem wings, apex acute or mucronate, glandular and scabrid-pubescent to scabrid-lanate above and glabrescent, grey-white lanate beneath.. Capitula 3–5 mm long, heterogamous, many in dense rounded clusters united in their turn in terminal cymes; receptacle alveolate, fimbrillate; phyllaries closely imbricate and appressed, (narrowly) obovoid, 3–4 mm long, proximal part pale brown, distal part expanded and yellow, apex rounded or obtuse, the outermost lanate at the very base, all others glabrous, the innermost often with a glandular patch halfway.. Outer florets absent (or up to 3, see note), narrowly cylindrical, 2.2 mm long; inner florets (3–)4–6, tube narrowly infundibuliform or cylindrical, (1.6–)2.2–2.4 mm long, lobes 0.3–0.4 mm long and glandular, anthers 1.1–1.4 mm long, style 2–2.5 mm long.. Achenes ellipsoid, 0.5–0.7 mm long, minutely hairy; pappus white, (1.3–)2–3 mm long, coherent at base.. Fig. 87/1–7.
Perennial herb, up to 1.5 m high; stems decumbent and erect, glandular, thinly greyish white-woolly, leafy, becoming pedunculoid upwards. Leaves: blade linear-oblong, lingulate or narrowly obovate, broadest above middle, 5-60 x 1.5-15.0 mm, apex obtuse, sometimes acute, mucronate, base clasping, decurrent in narrow or broad stem wings; upper surface glandular and setose-scabrid, glabrescent or greyish white-woolly on both surfaces, aromatic. Heads disciform, ± 2.5-3.0 mm long, many matted together with wool at base, in dense or loose, flattened or rounded, terminal, cymose clusters. Involucral bracts closely imbricate, innermost ± equalling florets, not radiating, outer pale brown, inner bright or pale canary-yellow, stereome divided. Receptacle epaleate, with fimbrils ± equalling ovaries. Flowers: female and disc florets (3-)7-15, 1-4 female; corolla of disc florets campanulate above, yellow; Jan.-Mar., Jun. Fruit with cypsela hairy. Pappus of many barbellate bristles, bases cohering by patent cilia.
Branched, aromatic herb, base woody, stems often decumbent, rooting, glandular, thinly greyish-white, woolly, leafy below. Leaves variable, 5-60 x 1.5-15.0 mm, linear-oblong to spathulate, base clasping, glandular, setose-scabrid above, greyish-white, woolly, both sides. Capitula 2.5-3.0 mm long, matted together basally with wool in terminal, cymose clusters; involucral bracts imbricate, pellucid, outer pale brown, inner yellow. Receptacle fimbrils ± equalling ovaries. Flowers yellow. Flowering time mainly Jan.-June. Pappus of many bristles, bases cohering by patent cilia. Cypselae 0.75 mm long, barrel-shaped.
Decumbent and erect perennial herb, up to 1.5 m high. Leaves broadest above middle, bases decurrent in narrow or broad stem wings; greyish white woolly on lower surfaces, aromatic. Heads in dense or loose, flattened or rounded, terminal cymose clusters. Flowers yellow; outer involucral bracts pale brown, inner bright or pale canary-yellow.
Straggling, aromatic, thinly white-woolly shrublet to 50 cm. Leaves linear to spathulate, clasping, decurrent, grey-woolly, undulate. Flower heads disciform, densely matted together in terminal cymes, narrowly campanulate, brown and yellow, ± 3 x 2 mm, florets ± 5-15, ovary papillate-hairy.
A herb. It keeps growing from year to year. It grows 1.5 m tall. The leaves are broadest above the middle. The flowers are yellow.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 1.5
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

It is a tropical plant.
Light -
Soil humidity 6-8
Soil texture 7-8
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

Uses environmental use food material medicinal
Edible leaves
Therapeutic use Diabetes mellitus (leaf), Diabetes mellitus (root), Fumigant (unspecified), Abdominal pain (unspecified), Chest pain (unspecified), Common cold (unspecified), Cough (unspecified), Headache (unspecified), Heart diseases (unspecified), Helminthiasis (unspecified), Influenza, human (unspecified), Insect repellents (unspecified), Labor pain (unspecified), Nervous system diseases (unspecified), Pain (unspecified), Pneumonia (unspecified), Tuberculosis (unspecified), Genital infection (unspecified)
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 odoratissimum unspecified picture

Distribution

Helichrysum odoratissimum world distribution map, present in Angola, Cameroon, United Kingdom of Great Britain and Northern Ireland, Equatorial Guinea, Lesotho, Mozambique, Nigeria, South Sudan, eSwatini, Tanzania, United Republic of, Uganda, South Africa, Zambia, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:213115-1
WFO ID wfo-0000025613
COL ID 6LHHT
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Gnaphalium odoratissimum Gnaphalium strigosum Helichrysum butaguense Helichrysum roulingi Helichrysum engleri Helichrysum odoratissimum Achyrocline hochstetteri Gnaphalium odorum Helichrysum rosmarinum Gnaphalium aureofulvum Gnaphalium undulifolium Gnaphalium maritimum Gnaphalium adnatum Helichrysum odoratissimum var. odoratissimum

Lower taxons

Helichrysum odoratissimum var. scabrum