Laggera crispata (Vahl) Hepper & J.R.I.Wood

Species

Angiosperms > Asterales > Asteraceae > Laggera

Characteristics

Annual or perennial herb 0.6–2.4 m tall, woody at base, several-stemmed, often much branched; stems with entire or toothed wings to 5(–15) mm wide, pubescent or puberulous, densely glandular; branches of inflorescence often without wings; whole plant slightly viscid and aromatic.. Leaves often tinged purple or with purple veins, sessile, oblong to (narrowly) obovate, the ones near the base large but getting smaller distally, 3–27 cm long, 0.8–11 cm wide, base narrowing gradually and decurrent on to the stem, margins serrate or serrulate with callose-tipped teeth, apex acute or obtuse and apiculate, puberulous to scabridulous with short glandular hairs on both surfaces.. Capitula 8–12 mm long, many in large terminal pyramidal panicles; stalks of individual capitula usually curved, 0.5–3 cm long, pubescent and glandular; phyllaries unequal, the outermost greenish with pink or purple margins and tips and often recurved, the inner pale green to white and papery, all phyllaries narrowly triangular or lanceolate, 2–12 mm long, the outer to 1 mm wide, the inner to 0.5 mm wide, acute to acuminate, puberulous and glandular, becoming less so on the innermost ones; receptacle flat, occasionally honeycombed.. Florets pink, mauve or purple, the innermost more deeply so; outer florets very many, the tube filiform, 5–7 mm long, minutely toothed at the apex; style 5.5–8 mm long, with naked branches; inner florets 15–30, the tube 4.8–8 mm long, hardly widening, lobes 0.3–0.5 mm long, minutely hairy (not in our area?) or glabrous, sparsely glandular; anthers pink, 1.8–2 mm long, obtuse at the base, with 0.5 mm long apical appendages; style 6–9 mm long, pink with short (0.5 mm) hairy branches.. Achenes cylindrical, 1–1.5 mm long, pubescent; pappus of many ?smooth white bristles 5.5–7.5 mm long.. Fig. 71 (page 354).
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Stout herb up to 2 m, all parts glandular-hairy. Leaves sessile, up to 16 x 7 cm but often much smaller, oblong, elliptic-oblong or narrowly obovate, margins serrate, base decurrent on the stem in narrow wings, coarsely toothed or entire, the inflorescence branches in particular sometimes wingless. Heads campanulate, up to c. 1.5 x 2 cm, pedunculate, nodding, solitary or few terminating short lateral branchlets, the whole forming a large leafy pyramidal panicle. Involucral bracts in many series, lanceolate to linear-lanceolate, acute to acuminate, tips recurved, often glandular-pilose. Flowers pinkish or purplish. Achenes 1.5 mm long, cylindric, closely ribbed, appressed hairy between the ribs. Pappus of long slender bristles, persistent.
Herbs. Stems much branched, 40-100 cm tall, stems and branches narrowly winged with irregular deeply toothed lobes or interrupted wing; stem teeth and leaves densely pubescent, mainly with short erect glandular hairs. Lower leaves sessile or sometimes with winged, deeply toothed petiole to 15 mm, blade narrowly obovate, 5-17 × 1.5-6 cm, base long attenuate, margin subentire to serrate-dentate, apex acute; upper leaves narrower, slightly tapered below, oblong, sometimes subobtuse. Capitula terminal, pink to purple, 10-15 mm in diam.; peduncles slender. Involucre ca. 7 mm in diam.; phyllaries 4.5-9 mm, at least outer ones glandular-pubescent. Corolla 6.5-8 mm. Achenes ca. 1 mm. Pappus ca. 6 mm. Fl. Jan-Jul. 2n = 20.
Annual or perennial, glandular herb, up to 2 m high, stems winged. Leaves alternate, sessile, oblong, elliptic-oblong, narrowly obovate or obovate, margins coarsely serrate or serrulate, base decurrent on stem in narrow wings, glandular-puberulous. Capitula disciform, pedunculate, solitary or few, terminating, short, lateral shoots, the whole forming large, leafy, pyramidal panicle; involucral bracts in many rows, lanceolate to linear-lanceolate, acute to acuminate. Outer female florets filiform, many, pinkish purple. Disc florets tubular, widening upwards, pinkish purple. Flowering time not recorded for EC. Pappus of barbellate bristles. Cypselae cylindric, closely ribbed, hairy.
Herb, upto 2 m high. Stems winged. Leaves glandular-puberulous, oblong, elliptic-oblong, narrowly obovate or obovate, margins coarsely serrate or serrulate. Peduncles arching over. Flowers pinkish purple.
A herb.
Life form annual
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 1.61 - 1.85
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

A weedy herb, growing on dry hill slopes, old clearings, upland rice fields, and wastelands; at elevations up to 2,000 metres.
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It is a tropical plant.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

Uses material medicinal social use
Edible leaves
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Leaf

Laggera crispata leaf picture by Dieter Albrecht (cc-by-sa)

Distribution

Laggera crispata world distribution map, present in Angola, Benin, Burkina Faso, Bangladesh, Bhutan, Botswana, Central African Republic, China, Côte d'Ivoire, Cameroon, Ethiopia, Gabon, Ghana, Guinea, Guinea-Bissau, Equatorial Guinea, India, Kenya, Cambodia, Lao People's Democratic Republic, Liberia, Sri Lanka, Myanmar, Mozambique, Namibia, Sudan, Senegal, Sierra Leone, South Sudan, eSwatini, Chad, Togo, Thailand, Tanzania, United Republic of, Uganda, Viet Nam, South Africa, Zambia, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:912744-1
WFO ID wfo-0000093042
COL ID 3RX44
BDTFX ID -
INPN ID 706459
Wikipedia (EN)
Wikipedia (FR) Link

Synonyms

Blumea pterodonta Conyza crispata Laggera crispata Laggera pterodonta Blumea crispata Laggera purpurascens Laggera intermedia Laggera pterodonta Laggera purpurascens Laggera alata var. montana Blumea crispata var. montana Blumea alata var. montana