Troglophyton parvulum (Harv.) Hilliard & B.L.Burtt

Species

Angiosperms > Asterales > Asteraceae > Troglophyton

Characteristics

Small annual herb c. 10-150 mm tall, stems simple or branched, more or less erect. Leaves mostly 3.15(-30) x 1-6(-12) mm, 1/3-1/2 the length petiolar, uppermost subsessile, blade oblanceolate to elliptic tapering at both ends, subacute to obtuse, mucronate. Heads heterogamous, campanulate, 2.5-3 x 1-2 mm, pedunculate to nearly sessile, few to many in corymbose clusters terminating the branchlets or occasionally subsolitary on diminutive plants. Involucral bracts in 3 series, pellucid, occasionally reddish above the stereome, tips very obtuse to subacute, opaque or subopaque, white, minutely radiating. Flowers 13-27, 9-23 ('female'), 3-8 ('bisexual'). Achenes 0.5 mm long, hairy. Pappus bristles with tip and shaft barbellate.
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Annual, ± erect, 10-150 mm tall. Leaves alternate, petiolate, upper subsessile, oblanceolate to elliptic, apex subacute to obtuse, mucronate. Flowerheads disciform, pedunculate to almost sessile, corymbosely arranged at branch tips; involucral bracts white, occasionally tinted reddish, tips obtuse to subacute; female florets mostly at least twice as many as bisexual florets. Pappus of barbellate bristles.
Like T. tenellum but bracts acute and female flowers twice as many as hermaphrodite ones.
Life form annual
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.01 - 0.15
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity 4-6
Soil texture 7-8
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

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

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Troglophyton parvulum world distribution map, present in United Kingdom of Great Britain and Northern Ireland, Namibia, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:909800-1
WFO ID wfo-0000043778
COL ID 5995F
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Gnaphalium parvulum Troglophyton parvulum Helichrysum capillaceum var. erectum