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urn-flower alum-root

Senator Mine alumroot

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

10–40 cm, sparsely medium stipitate-glandular.

30–50 cm, short or long 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 nearly glabrous or short to long stipitate-glandular;

blade (purple abaxially, variegated adaxially), orbiculate-cordate, shallowly 5-lobed, 2.5–8.5 cm, base cordate, lobes rounded, margins dentate, apex short-apiculate, surfaces short to long stipitate-glandular abaxially, short stipitate-glandular or sparsely long stipitate-glandular adaxially.

Inflorescences

dense.

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 weakly bilaterally symmetric, free 1.5–2 mm, cream or greenish, broadly turbinate or campanulate, 3–4.5 mm, short or sparsely medium stipitate-glandular;

sepals 6, incurved at apex, red-tipped, equal, 1–1.5 mm, apex acute;

petals absent or (1–)6 and much reduced, erect, greenish, lanceolate, unlobed, 1 mm, margins entire;

stamens 6, included 1 mm;

styles included 1.5 mm, to 1 mm, 0.1+ mm diam.

Capsules

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

ovoid, 5–7 mm, beaks divergent, not papillose.

Seeds

dark brown, ellipsoid, 0.7 mm.

dark brown, asymmetrically ellipsoid or convex-fusiform, 0.6 mm.

Inflorescenses

dense.

Heuchera elegans

Heuchera eastwoodiae

Phenology Flowering May–Jun. Flowering May–Aug.
Habitat Rocky sites in yellow pine and red fir forests Shaded, rocky slopes
Elevation 1500-2600 m (4900-8500 ft) 1500-1900 m (4900-6200 ft)
Distribution
from FNA
CA
from FNA
AZ
[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 eastwoodiae occurs in central Arizona and is unique in the genus for its hexamerous flowers.

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

Source FNA vol. 8, p. 100. FNA vol. 8, p. 102.
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. elegans, 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
Name authority Abrams: Bull. S. Calif. Acad. Sci. 1: 67. 1902 , Rosendahl: Minnesota Stud. Pl. Sci. 2: 152. (1936)
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