Spilanthes Jacq.

Spilanthes (en)

Genus

Angiosperms > Asterales > Asteraceae

Characteristics

Perennial herbs, erect or prostrate. Leaves opposite, cauline. Capitula discoid, terminal, solitary or in simple cymes of 2 or 3, rarely axillary, ovoid to broadly ovoid, pedunculate; involucral bracts 2-or 3-seriate, subequal or unequal, narrowly lanceolate to ovate or obovate; outer bracts herbaceous; inner bracts sometimes chartaceous; receptacle conical, elongating in fruit; paleae membranous, loosely enfolding achenes. Ray florets absent. Disc florets bisexual, tubular, 5-lobed; anthers shortly acuminate at base. Achenes ellipsoid to obovoid, strongly laterally compressed, 2-angled, glabrous or ciliate on angles. Pappus of 1–3 unequal slender but substantial awns.
More
Heads radiate, the rays pistillate, yellow or white, or rarely wanting and the heads discoid; invol bracts in 1 or 2 series, subherbaceous and subequal; receptacle elongate, conic or subcylindric, its bracts clasping the disk-achenes and eventually deciduous with them; disk-fls perfect and fertile style-branches flattened, truncate, exappendiculate; achenes of the rays 3-angled or tangentially flattened, those of the disk radially flattened, commonly ciliate-margined; pappus of 1–3 slender setiform awns, or none; annual or rarely perennial herbs with opposite, commonly toothed lvs. 40, mainly warm reg.
Perennial herbs. Leaves opposite and decussate, 3–5-veined from base. Capitula axillary or terminal, solitary, ovoid, discoid; phyllaries 2–3-seriate, subequal; receptacle paleate. Disc florets many, bisexual, 5-lobed; style with bulbous base. Achenes compressed, with a cork-like margin; pappus of 1–4 awns
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
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Environment

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Hardiness (USDA) 8-12

Usage

Uses medicinal
Edible -
Therapeutic use Anodyne (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

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