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urn-flower alum-root

long-flower alum-root

Habit Herbs subcaulescent; caudex branched. Herbs acaulescent; caudex branched.
Flowering stems

10–40 cm, sparsely medium stipitate-glandular.

often leafy, 30–95 cm, glabrous or short stipitate-glandular.

Leaves

petiole long stipitate-glandular;

blade reniform or orbiculate, shallowly 5-lobed, 1.5–3.5 cm, base cordate or truncate, lobes rounded, margins dentate, apex obtuse, surfaces short or long stipitate-glandular.

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 3–3.5 mm on adaxial side, pink to purplish, narrowly cylindric or cylindric-urceolate, 4–7 mm, short stipitate-glandular proximally, densely long stipitate-glandular distally;

sepals spreading, green-tipped, unequal, 2 mm on adaxial side of hypanthium, apex obtuse or rounded;

petals spreading, white, broadly oblanceolate, (clawed), unlobed, 3–4 mm (longer than sepals), margins entire;

stamens included 0.5 mm to exserted 0.5 mm;

styles included to 2 mm, 1.5–2 mm, 0.1+ mm diam.

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

urceolate, 4–6 mm, beaks divergent, not papillose.

ovoid, 5–13 mm, beaks divergent, not papillose.

Seeds

dark brown, ellipsoid, 0.7 mm.

dark brown, ellipsoid, 0.5–0.9 mm.

Inflorescenses

dense.

2n

= 14.

Heuchera elegans

Heuchera longiflora

Phenology Flowering May–Jun. Flowering May–Jun.
Habitat Rocky sites in yellow pine and red fir forests Rich, shaded woods and roadcuts over limestone substrates and outcroppings
Elevation 1500-2600 m (4900-8500 ft) 100-500 m (300-1600 ft)
Distribution
from FNA
CA
from FNA
AL; KY; NC; TN; VA; WV
[BONAP county map]
Discussion

Heuchera elegans occurs in the mountains of southern California, chiefly in the San Gabriel Range in Los Angeles and San Bernardino counties and vicinity. It resembles H. caespitosa. This group is in need of phylogenetic study.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Heuchera longiflora is restricted to limestone outcroppings and is rare in all the states where it is found.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 8, p. 100. FNA vol. 8, p. 97.
Parent taxa Saxifragaceae > Heuchera Saxifragaceae > Heuchera
Sibling taxa
H. abramsii, H. alba, H. americana, H. bracteata, H. brevistaminea, H. caespitosa, H. caroliniana, H. chlorantha, H. cylindrica, H. eastwoodiae, H. glabra, H. glomerulata, H. grossulariifolia, H. hallii, H. hirsutissima, H. longiflora, H. maxima, H. merriamii, H. micrantha, H. novamexicana, H. parishii, H. parviflora, H. parvifolia, H. pilosissima, H. pubescens, H. pulchella, H. richardsonii, H. rubescens, H. sanguinea, H. villosa, H. wootonii
H. abramsii, H. alba, H. americana, H. bracteata, H. brevistaminea, H. caespitosa, H. caroliniana, H. chlorantha, H. cylindrica, H. eastwoodiae, H. elegans, H. glabra, H. glomerulata, H. grossulariifolia, H. hallii, H. hirsutissima, H. maxima, H. merriamii, H. micrantha, H. novamexicana, H. parishii, H. parviflora, H. parvifolia, H. pilosissima, H. pubescens, H. pulchella, H. richardsonii, H. rubescens, H. sanguinea, H. villosa, H. wootonii
Synonyms H. aceroides, H. longiflora var. aceroides, H. scabra
Name authority Abrams: Bull. S. Calif. Acad. Sci. 1: 67. 1902 , Rydberg: in N. L. Britton, Man. Fl. N. States, 482. (1901)
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