Koanophyllon
in H. Koster, Trav. Brazil, 495. 1816.
| Taxon | Illustrator ⠉ | |
|---|---|---|
 | Koanophyllon villosum Chromolaena ivifolia Mikania scandens | Linny Heagy Linny Heagy Linny Heagy |
Perennials, subshrubs, or shrubs [trees, vines], 40–200+ cm. Stems erect, branched. Leaves cauline; mostly opposite (distal sometimes alternate); petiolate; blades usually 3-nerved from bases, mostly deltate or ovate to triangular-lanceolate or lanceolate (lacking internal translucent lenses or streaks), margins entire or dentate, faces glabrous or sparsely hispidulous, puberulent, or strigose, sometimes sparsely to densely glanddotted. Heads discoid, in corymbiform to paniculiform arrays. Involucres obconic to hemispheric, 2–3 mm diam. Phyllaries persistent (at least outermost), 7–16 in 1–2 [–4] series, 3-nerved, ovate to lanceolate, ± equal or unequal. Receptacles flat or convex, epaleate. Florets 3–13 [–20]; corollas whitish to pinkish [violet], throats funnelform (lengths ca. 2.5 times diams.); styles: bases sometimes enlarged, glabrous, branches filiform to obscurely clavate. Cypselae prismatic, 5-ribbed, sparsely hispidulous or piloso-strigose, sometimes glanddotted; pappi persistent, of 30–35, barbellate bristles in 1 series. x = 10.
Distribution
s, w United States, Mexico, West Indies, Central America, South America
Discussion
Species ca. 115 (3 in the flora).
Selected References
None.
Key
| 1 | Leaf blades ovate to ovate-deltate or ovate-lanceolate, abaxial faces densely gland-dotted | Koanophyllon villosum |
| 1 | Leaf blades lanceolate to triangular-lanceolate, abaxial faces eglandular or sparsely gland-dotted | > 2 |
| 2 | Leaves usually opposite, sometimes subopposite to alternate on distal 1/3 of stems, blade apices acuminate, adaxial faces glabrous; involucres 4.5–5.5 mm; phyllaries: outermost narrowly lanceolate, glabrous, margins hyaline on proximal 2/3, eciliate | Koanophyllon solidaginifolium |
| 2 | Leaves opposite, blade apices acute, adaxial faces sparsely strigose to hispidulous; involucres (3–)3.5–4 mm; phyllaries: outermost ovate-elliptic or obovate to narrowly oblong-lanceolate, puberulent, margins herbaceous, usually weakly ciliate | Koanophyllon palmeri |
"fine" is not a number.