Rhizomes: internodes short, leaves crowded at rhizome apex (or internodes somewhat elongate, leaves scarcely crowded in var. arifolia and var. callifolia growing in wet places). Leaf blade commonly variegate, triangular-sagittate to subhastate, infrequently ovate-sagittate to deltate. Flowers: calyx tube narrowly to broadly urceolate-campanulate or ovoid, 12-30 × 6-12 mm, inner surface smooth; lobes erect or spreading, 2-8 × 2-9 mm, adaxially puberulent; stamen connective extending slightly beyond pollen sacs; ovary ca. 1/3-inferior; ovules ca. 6 per locule; styles 2-cleft to stigma.

Distribution

North America.

Discussion

Varieties 3 (all in the flora).

Hexastylis arifolia is the most widespread species in the genus. Along the boundaries where the ranges of the varieties meet, intermediate specimens are occasionally found.

The Catawba tribe used Hexastylis arifolia (no varieties specified) medicinally for stomach pains, miscellaneous pains, heart trouble, and backaches; the Rappahannock, for treating whooping cough and asthma (D. E. Moerman 1986).

Selected References

None.

Lower Taxa

Hexastylis arifolia var. arifolia, Hexastylis arifolia var. callifolia, Hexastylis arifolia var. ruthii

Key

1	Calyx lobes erect, 2–4 × 2–4 mm.	Hexastylis arifolia var. ruthii
1	Calyx lobes spreading, 2.5–8 × 3–9 mm.	> 2
2	Calyx tube 13–18 × 6–10 mm.	Hexastylis arifolia var. arifolia
2	Calyx tube 20–25 × 10–12 mm.	Hexastylis arifolia var. callifolia