Comprehensive Description
(
anglais
)
fourni par North American Flora
Heuchera glaberrima Rydb. sp. nov
Stem very short if any ; flowering branches more or less leafy, 4-6 dm. high, glabrous up to the inflorescence, which is minutely puberulent ; petioles of the basal leaves glabrous, 6-12 cm. long, slender; blades cordate, 2-6 cm. long, 1.5^ cm. wide, glabrous, round-lobed and toothed with broadly ovate, bristle-pointed teeth ; blades of the stem-leaves similar, but smaller and comparatively shorter ; inflorescence 3-4 dm. long, narrow but open ; bracts linearsubulate ; hypanthium pubescent, together with the oblong obtuse sepals 2.5 mm. long ; petals white, narrowly spatulate, about twice as long as the sepals.
Type collected in Oregon by Howell, and distributed under the name H. glabra.
- citation bibliographique
- 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
