Piptocarpha macropoda (DC.) Baker
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Authority
Smith, Gerald L. & Coile, Nancy C. 2007.
(Compositae: Vernonieae). Fl. Neotrop. Monogr. 99: 1--94. (Published by NYBG Press) -
Family
Asteraceae
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Scientific Name
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Description
Species Description - Trees up to 25 m tall, flowering branchlets slender, terete, closely cinereous to brown tomentose. Leaves somewhat crowded along the branchlets; petioles long, furrowed, striations decurrent, 15-35 mm long; blades often large, 8-20 x 2.5-11 cm, subcoriaceous, shape variable, elliptic, ovate to lanceolate, obtuse or acute to acuminate at apex, cuneate or rounded to slightly oblique at base, margin remotely toothed, glabrate above, cineieous-stellate-tomentose below, 6-8 pairs of lateral veins. Inflorescences axillary, often crowded clusters of (2-)5-12(-15) heads, typically forming a dense continuous mass on the branch-lets. Heads with (10-) 12-21 florets, subsessile on short, stout cinereous-tomentose peduncles; involucres turbinate, 9-13 mm long, 4.5-7.5 mm wide; phyllaries imbricate in 5-6 series, brown tomentulose to cinereous-tomentose above middle, margin arachnoid, outer ones ovate, tips acute to subacute, inner ones lanceolate to linear-oblong, above middle silvery tomentose, tips obtuse. Corollas fragrant, off-white, glabrate, tube 4-5 mm long, the lobes 2-3 mm long, outer surface pilose; anthers deep purple 3-3.5(-4) mm long, basal auricles elongated, papillate at tips, 0.6-0.9 mm long. Pappus white to light straw-colored, biseriate, inner bristles filiform, (5.5-)6-7(-7.5) mm, outer ones linear with notched apices, occasionally deciduous, 0.5-2 mm long. Achenes 3.54.5 mm long, 3-4-angled, indistinctly costate, gland-dotted. Chromosome number: 2n = 34, G. Lomax Smith 768 (GA, GUA, RB)