Ageratina ixiocladon (benth. ex Oerst.) R.m.king & H.Rob.

Species

Angiosperms > Asterales > Asteraceae > Ageratina

Characteristics

Subshrub or shrub to 3.6 m tall, with few to many branches; stems pale to dark brownish, terete, usually puberulous, sometimes glanduliferous. Leaves opposite; blades ovate, papyraceous, to 12 cm long and 6 cm wide, the base rounded to cuneate, the margins serrulate to crenate, the apex slightly to slenderly acuminate, the surfaces minutely puberulous on the veins, the lower surface slightly paler with rather prominent dark fine reticulations and scattered glandular punctations or short stipitate glands, usually 2 pairs of strongly ascending secondary veins from near base; petioles slender, mostly 1-4 cm long. Inflorescence broadly corymbose-paniculate with corymbose branches, the ultimate branches mostly 2-5 mm long, minutely puberulous. heads 4-6 mm high with 19-30 florets; involucral bracts ca. 20, eximbricate, biseriate, linear to linear-lanceolate, 3.5-5.5 mm long, bicostate, the apices long attenuate, the outer surface with scattered glands and few or no hairs; corolla white to lavender, 2.5-3.5 mm long, the tube slender, 1.0-1.5 mm long, glabrous, the limb cylindrical to narrowly campanulate, the lobes triangular, 0.3-0.4 mm long, with few or no hairs on inner surface and numerous hairs on outer surface; anther thecae 0.4-0.9 mm long. Achenes fusiform, ca. 2 mm long, with short to long bristles mostly on the ribs; carpopodium cylindrical with mostly oblong cells; pappus bristles ca. 25, somewhat fragile at base, mostly 3.5-4.0 mm long, broadened distally, without distinct series of shorter bristles.
Life form perennial
Growth form
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 3.6
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Environment

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Usage

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

Cultivation

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Distribution

Ageratina ixiocladon world distribution map, present in Costa Rica and Panama

Identifiers

LSID urn:lsid:ipni.org:names:6937-2
WFO ID wfo-0000046697
COL ID 65S9C
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Eupatorium ixiocladon Eupatorium ixiocladon Ageratina ixiocladon