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FNA | Family List | FNA Vol. 3 | Aristolochiaceae | Hexastylis

3. Hexastylis lewisii (Fernald) H. L. Blomquist & Oosting, Spring Fl. Piedmont. 50. 1940.

Asarum lewisii Fernald, Rhodora 45: 398. 1943; Hexastylis pilosiflora H. L. Blomquist

Rhizomes dimorphic: internodes of flowering rhizomes short, leaves crowded at rhizome apex; internodes of sterile rhizomes often long, leaves scattered along length of rhizome. Leaf blade variegate, triangular-cordate, cordate, or orbiculate-cordate. Flowers: calyx tube cylindric-campanulate to urceolate-campanulate, sometimes with prominent transverse ridge just above middle, 14-20 × 16-22 mm, inner surface longitudinally ridged, without reticulations, lobes spreading, 8-15 × 10-15 mm, adaxially pilose; stamen connective extending beyond pollen sacs; ovary superior; ovules 10 per locule; style notched at apex. 2 n = 26.

Flowering spring (Apr-May). Upland and lowland (floodplain) forests; sometimes found along shores of Carolina bays; 0-200 m; N.C., Va.

Hexastylis lewisii resembles H . shuttleworthii in its calyx shape, the presence of elongate rhizomes, and the late flowering time.


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