Heuchera longiflora Rydb. In Britton

Longflower alumroot (en)

Species

Angiosperms > Saxifragales > Saxifragaceae > Heuchera

Characteristics

Herbs acaulescent; caudex branched. Flowering stems often leafy, 30-95 cm, glabrous or short stipitate-glandular. Leaves: petiole glabrous or short stipitate-glandular; blade (often variegated adaxially), broadly ovate to cordate, shallowly 5-lobed, 3-12 cm, base cordate or nearly truncate, lobes rounded to widely ovate, terminal lobes often elongated, margins dentate, apex acute or obtuse, surfaces glabrous or short stipitate-glandular, at least on veins. Inflorescences diffuse. Flowers: hypanthium strongly bilaterally symmetric, free 2.2-6.2 mm, green, gibbous-tubular, abruptly inflated distal to adnation to ovary, 6.6-12.6 mm, short stipitate-glandular; sepals inflexed (closing mouth of flower), darker green-tipped, equal, 2-3.7 mm, apex rounded; petals inflexed (closing mouth of flower), white, pink, or purple, spatulate, unlobed, 1.8-5.5 mm, margins often fimbriate; stamens 2.4 mm included to 0.7 mm exserted; styles included 1.3-5.3 mm, 1.5-2.5 mm, to 0.1 mm diam. Capsules ovoid, 5-13 mm, beaks divergent, not papillose. Seeds dark brown, ellipsoid, 0.5-0.9 mm. 2n = 14.
More
Plants 3–9 dm; scape with small and scale-like or larger and leaf-like bracts; petioles glabrous or minutely glandular-puberulent; lvs round-cordate, glabrous or nearly so, or short-hairy on the veins beneath, often white-mottled, 5–9-lobed, the teeth very broad and flat or barely rounded, mucronate; stems short-hirsute; infl lax, with herbaceous bracts; fls horizontal, distinctly oblique, 7–9 mm on the upper side, 3/4 as long on the lower; sep inflexed, closing the fl, rounded, 2–3.5 mm, separated by narrow sinuses; pet white to pink or purple, inflexed, spatulate, 2–5 mm, often fimbriate; stamens evidently included to barely exserted; styles included 1.5–3 mm (from the cal-tip) at anthesis; 2n=14. Rich woods on limestone substrate; mts. of e. Ky., s. W.Va., and sw. Va. to N.C. and Ala. May, June.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3 - 0.9
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 4-9

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 10 - 60
Germination temperacture (C°) 18 - 21
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Heuchera longiflora world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:121603-2
WFO ID wfo-0001135499
COL ID 3LFQW
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR) Link

Synonyms

Heuchera longiflora Heuchera scabra Heuchera longiflora var. aceroides Heuchera pubescens var. aceroides