Ipomoea altoparanaensis O’Donell
Protologue:
Arq. Mus. Paranaense 9: 210. 1952.
Synonyms:
Ipomoea paranaensis Hassl., Add. Plantae Hasslerianae 18. 1917. Nom. nud.
Highlights:
A species known only from two collections. Very distinct are the silvery sericeous leaves with highlighted veins. It is very like forms of Ipomoea nitida from Corrientes but with the distinct sericeous-tomentose indumentum.
Description:
Trailing perennial; stems stout, densely tomentellous. Leaves petiolate. 5–11 × 2–8 cm, ovate to elliptic, obtuse, mucronate, margin entire to slightly undulate, base broadly cuneate to shallowly cordate, both surfaces sericeous-tomentose, the venation highlighted; petioles 2–5 cm,tomentose. Inflorescence of long-pedunculate 3–5-flowered cymes; peduncles 5–19 cm, tomentose; bracteoles 9–10 × 2.5 mm, tomentose, caducous; secondary and tertiary peduncles 2–4.5 cm; pedicels 6–25 mm, densely tomentose; sepals subequal or interior slightly shorter, 10–14 × 8–11 mm, broadly elliptic to subglobose, obtuse and mucronate, tomentose; corolla 7–9 cm long, funnel-shaped, pink, tomentose, limb 5 cm diam. Capsules and seeds unknown.