Taxon	Illustrator ⠉
	Shinnersia rivularis Sclerolepis uniflora Isocarpha oppositifolia var. achyranthes	Linny Heagy Linny Heagy Linny Heagy

Perennials, 10–30 cm (aquatic). Stems ascending, unbranched or branched (rooting at proximal nodes). Leaves cauline; opposite; sessile; blades 1-nerved or 3-nerved, broadly oblanceolate or 3-lobed, ultimate margins coarsely toothed, faces sometimes pilose and glabrescent or glabrous, glanddotted. Heads discoid, borne singly. Involucres hemispheric or broader, 6–9 mm diam. Phyllaries persistent, 25–30 in 2–3+ series, not notably nerved, ovate to lanceolate or linear, ± equal (herbaceous to membranous). Receptacles convex to conic, epaleate (warty). Florets 75–100+; corollas white, throats broadly campanulate (notably wider than tubes, lengths ca. 1 times diams.); styles: bases not enlarged, glabrous, branches linear-filiform. Cypselae prismatic, 4–5-ribbed, sparsely glanddotted and sparsely hairy (hairs forked); pappi 0. x = 15?

Distribution

Tex., n Mexico

Discussion

Species 1.

Selected References

None.

Lower Taxa

Shinnersia rivularis

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