Helichrysum filicaule Hook.F.

Species

Angiosperms > Asterales > Asteraceae > Helichrysum

Characteristics

Main stems prostrate, creeping and rooting, up to 3 dm. long (sts lianoid under shrubs), c. 1-2 mm. diam.; branches decumbent to erect, up to 25 cm. long, c. 1 mm. diam.; with sparse cottony tomentum to glab. Lvs oblong to obovate, up to 1·5 cm. × 5 mm., glab. above when mature, clad in dense soft cobwebby white tomentum below, abruptly mucronate at apex, subsessile with semiamplexicaul base. Scapes densely tomentose, filiform, up to 5 cm. long, with or without minute bracts. Capitula up to 1 cm. diam.; phyll. in 4-5 series; outer short, oblong, densely tomentose on back; inner linear-oblong, scarious, stramineous with brown tips, tomentose on midrib at back, ciliolate on margins. Receptacle 1-2 mm. diam., shallowly convex, alveolate; perfect florets ∞, ♀ few. Achenes compressed, filiform, seldom up to 1 mm. long, papillose-pubescent; pappus-hairs up to 5 mm. long, very slender.
More
Prostrate herb, (2)-5-15 cm tall; prostrate stems rooting; erect flowering stems tomentose, c. 0.5-1 mm diam. Lvs spreading, distant, usually glabrous on upper surface, rarely sparsely to moderately tomentose, white-tomentose on lower, apetiolate, elliptic-obovate, or elliptic, mucronate, amplexicaul, (2)-3-7-(12) × (1.5)-2-3.5-(5) mm. Uppermost lvs on flowering branches smaller and more distant. Capitula 3-7 mm diam., solitary, pedunculate. Middle involucral bracts hairy, oblong, obtuse to acute, not radiating, with pale brown and membranous lamina, and stereome green or tinged pink, 4-6 mm long. Disc pale yellow. Achenes minutely papillate, obovoid-cylindric, c. 1 mm long.
Life form -
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.05 - 0.15
Root system creeping-root
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

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

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°) -
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Vigor -
Productivity -

Distribution

Helichrysum filicaule world distribution map, present in New Zealand

Identifiers

LSID urn:lsid:ipni.org:names:212742-1
WFO ID wfo-0000034978
COL ID 3K6P4
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Gnaphalium filicaule Helichrysum filicaule Conyza uniflora