Comprehensive Description
provided by North American Flora
Heuchera arkansana Rydb. sp. nov
Flowering branches scapiform, 1-2 dm. high, slightly if at all exceeding the leaves, more or less glandular whitevillous, with a few fringed scales ; petioles 4-12 cm. long, glandular white-villous ; blades broadly cordate or the earliest reniform, 4-10 cm. in diameter, sparingly pubescent on both sides, w4th 7-9 broadly ovate lobes, which are toothed and ciliate ; teeth broadly ovate, mucronate ; inflorescence small and comparatively dense, 4-6 cm. long and about 2 cm. wide ; hypanthium campanulate, rounded at the base, sparingly white-hairy, together with the broadly ovate sepals about 2.5 mm. long ; petals narrowly oblanceolate, about twice as long as the sepals and equaling the subulate -filiform filaments.
Type collected on shady cliffs, near Springdale, Benton County, Arkansas, by J. W.
Blankinship.
Distribution • Known only from the type locality.
- bibliographic citation
- John Kunkel SmaII, Per Axel Rydber, Nathaniel Lord Britton, Percy Wilson, Henry Hurd Rusby. 1905. ROSALES, PODOSTEMONACEAE, CRASSULACEAE, PENTHORACEAE and PARNASSIACEAE. North American flora. vol 22(2). New York Botanical Garden, New York, NY
