Hexastylis shuttleworthii (Britten & Baker f.) Small
Family: Aristolochiaceae
Large-Flower Heartleaf
Hexastylis shuttleworthii image

Rhizomes: internodes short or long, leaves crowded at rhizome apex or scattered along its length. Leaf blade variegate or not, orbiculate to cordate; calyx tube broadly urceolate-campanulate, conspicuously tapered above middle, 15-40 × 15-25 mm, inner surface with well-developed reticulations, lobes spreading or ascending, 6-13 × 10-22 mm, adaxially puberulent; stamen connective extending beyond pollen sacs; ovary superior; ovules 10-14 per locule; styles notched at apex.

Much like no. 1 [Hexastylis virginica (L.) Small], sometimes producing slender creeping rhizomes as well as short branching ones; cal tube 1.5-4 cm, often ±constricted above, the spreading lobes 6-17 mm, 10-20 mm wide at base; ovary wholly superior. Rich woods; Va. and W.Va. to Ga. and Ala. Apr., May. (H. lewisii; H. macranthum)

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

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