Aristolochia weddellii var. rondoniana

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Aristolochia weddellii var. rondoniana


Vine; branchlets pubescent when young, glabrescent; pseudostipules foliaceous, orbicular. Leaves: petiole pubescent, 2-5 cm long; blade rounded to triangular, (5-)12-15 x (3.5-)6-12 cm, glabrous above, tomentose beneath, apex triangular-acute, base widely rectangular-cordate; venation pedate, marginal at base. Flowers axillary, solitary; pedicel thick, 7-12 cm long; ovary 3-5 cm long; perianth whitish, dark-purple veined outside; utricle with a basal thickened rim, asymmetric, ventricose, (3.5-)5-7 x (2-)3-4 cm; tube short to inconspicuous; limb short funnel-shaped, superior lobe long tape-like, scalloped, about 8-10 cm long and more, with a terminal filament more than 10 cm long. Fruit unknown.


Guianas present, Southern America
The Guianas, Brazil; 14 collections studied (GU: 6; SU: 1; FG: 3).


Two other varieties, var. weddellii and var. duckeana Hoehne have the superior lobe of the perianth limb much longer; they are restricted to Amazonian Brazil.