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urn-flower alum-root

Front Range alum-root

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

10–40 cm, sparsely medium stipitate-glandular.

10–30 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 rounded-reniform, deeply 5–7-lobed, 1–3.8 cm, base cordate, lobes rounded, margins dentate, apex obtuse, surfaces glabrous or short stipitate-glandular.

Inflorescences

dense, (sometimes secund).

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 0.8 mm, greenish or pinkish yellow, broadly campanulate, 4–5.5 mm, short stipitate-glandular proximally, medium stipitate-glandular distally;

sepals erect, green-tipped, equal, 1.2–2 mm, apex rounded-ovate;

petals usually spreading, white, broadly oblanceolate, (clawed), unlobed, 1.8–2.5 mm, margins entire;

stamens included 1 mm; (filaments erect or incurved distally, relatively slender, longer than and not concealed by anthers);

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

Capsules

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

globose or ovoid, 3.5–4 mm, beaks divergent, not papillose.

Seeds

dark brown, ellipsoid, 0.7 mm.

dark brown, fusiform, 0.6 mm.

Inflorescenses

dense.

2n

= 14.

Heuchera elegans

Heuchera hallii

Phenology Flowering May–Jun. Flowering Jun–Aug.
Habitat Rocky sites in yellow pine and red fir forests Subalpine and alpine regions
Elevation 1500-2600 m (4900-8500 ft) 2200-3000 m (7200-9800 ft)
Distribution
from FNA
CA
from FNA
CO
[WildflowerSearch map]
[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 hallii occurs in south-central Colorado. It resembles H. bracteata in shape and size of the flowers and congestion of the inflorescence. It is distinguished by having stamens and styles included; H. bracteata has stamens and styles exserted.

(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. eastwoodiae, H. elegans, H. glabra, H. glomerulata, H. grossulariifolia, 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 , A. Gray: Proc. Acad. Nat. Sci. Philadelphia 15: 62. 1864 ,
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