Elephantopus tomentosus L.

Devil's grandmother (en)

Species

Angiosperms > Asterales > Asteraceae > Elephantopus

Characteristics

Herbs, perennial, 0.8-1 m tall or more. Rhizomes robust, obliquely ascending or procumbent, with fibrous roots. Stems erect, multibranched, angled, white villous. Basal leaves withered by anthesis, subsessile or shortly petiolate, lower leaves oblong-obovate, 8-20 × 3-5 cm, abaxially densely villous and glandular, adaxially rugose and verrucose, sparsely or densely puberulent, basally progressively attenuate into winged, rather amplexicaul petiole, margin mucronate-serrate, rarely entire, apex acute; upper leaves elliptic or oblong-elliptic, 7-8 × 1.5-2 cm; uppermost very small. Synflorescence laxly corymbose, aggregated into compound heads, surrounded by 3 leaflike bracts; bracts green, ovate-cordate. Capitula 12-20; peduncle slender, long. Involucre oblong, 8-10 × 1.5-2 mm; phyllaries green or sometimes apically purple-red, outer 4 lanceolate-oblong, 4-5 mm, glabrous or subglabrous, 1-veined, apex acute, inner 4 elliptic-oblong, 7-8 mm, sparsely adpressed shortly hairy and glandular, 3-veined, apex acute. Florets 4, white, funnelform, 5-6 mm, with slender tube; lobes lanceolate, glabrous. Achenes oblong-linear, ca. 3 mm, 10-ribbed, puberulent. Pappus sordid white, of 5 basally widened bristles. Fl. Aug-May. 2n = 22*.
More
Stems stout, 3–8 dm, hirsute or villous; lvs basal, prostrate in a rosette, broadly elliptic to obovate-oblong, 10–25 × 3–10 cm, obtuse or rounded, crenate, gradually narrowed to the sessile base, softly villous beneath with spreading or somewhat retrorse hairs; infl divaricately branched, usually with 3–10 glomerules; bracts triangular-ovate, equaling or barely surpassing the glomerules; invol 9–13 mm, its bracts thinly strigose and sparsely resinous; pappus-bristles gradually dilated into a narrowly triangular base; 2n=22. Open, sandy woods; coastal plain from se. Va. to Fla. and Tex., n. to the interior of Ky., and s. to Chiapas. Aug., Sept.
Plants (1–)3–6+ dm. Leaves mostly basal at flowering; blades usually obovate to oblanceolate or spatulate (rarely ± orbiculate), 3–8(–10+) cm × 4–12(–25+) mm (including petioles), abaxial faces ± densely pilose, adaxial sparsely pilose to hirsute. Bracts rounded-cordate, 8–15(–20+) × 7–15(–18+) mm. Inner phyllaries 9–11+ mm, pilosulous, hairs 0.3–0.6(–0.9) mm. Cypselae (3–)4–5 mm; pappi 6–8 mm. 2n = 22.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.55 - 0.8
Root system fibrous-root rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 5-11

Usage

Uses medicinal
Edible -
Therapeutic use Headache (unspecified), Tonsillitis (unspecified), Inflammation (unspecified)
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 -

Images

Leaf

Elephantopus tomentosus leaf picture by Debbye (cc-by-sa)
Elephantopus tomentosus leaf picture by Ken Borgfeldt (cc-by-sa)
Elephantopus tomentosus leaf picture by Ken Borgfeldt (cc-by-sa)

Flower

Elephantopus tomentosus flower picture by Ken Borgfeldt (cc-by-sa)
Elephantopus tomentosus flower picture by Clay Becker (cc-by-sa)

Distribution

Elephantopus tomentosus world distribution map, present in Bolivia (Plurinational State of), China, Colombia, Malaysia, Philippines, Taiwan, Province of China, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:202967-1
WFO ID wfo-0000072030
COL ID 398C7
BDTFX ID -
INPN ID 765777
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Elephantopus tomentosus Elephantopus virgatus Elephantopus virgatus Elephantopus tomentosus f. tomentosus Elephantopus nudicaulis Elephantopus nudicaulis var. nudicaulis Elephantopus tomentosus var. tomentosus Elephantopus carolinianus var. simplex