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Chiricahua Mountain alum-root

Carolina alum-root

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

25–40 cm, long stipitate-glandular.

leafy, 30–105 cm, short stipitate-glandular.

Leaves

petiole short stipitate-glandular;

blade (purple abaxially, variegated adaxially), ovate to orbiculate, shallowly 5-lobed, 2.5–9 cm, base cordate, lobes rounded, margins dentate, apex obtuse, surfaces short stipitate-glandular, long stipitate-glandular on veins abaxially, short stipitate-glandular and sparsely long stipitate-glandular adaxially.

petiole glabrous or short stipitate-glandular;

blade broadly ovate, shallowly 5-lobed, 3–10.5 cm, base cordate or nearly truncate, lobes rounded or ovate, margins dentate, apex acute or obtuse, surfaces glabrous or minutely stipitate-glandular on veins abaxially, glabrous or short stipitate-glandular adaxially.

Inflorescences

dense, (interrupted).

diffuse.

Flowers

hypanthium radially symmetric, free 0.8–1.2 mm, yellowish green, campanulate, 3.5–5 mm, densely long stipitate-glandular mixed with short stipitate-glandular;

sepals erect or incurved at tip, green-tipped, equal, 1.5–2 mm, apex acute;

petals erect, white, narrowly oblanceolate, (clawed), unlobed, 1.5–1.8 mm, margins entire;

stamens included 0.5 mm; (filaments strongly incurved, slender, shorter than and almost concealed by anthers);

styles included 1 mm, to 0.5 mm, 0.1+ mm diam.

hypanthium weakly bilaterally symmetric, free 1.3–2.5 mm, green, subglobose, abruptly inflated distal to adnation to ovary, 2.8–4.5 mm, short stipitate-glandular;

sepals erect, green-tipped, equal, 0.4–1.5 mm, apex rounded;

petals erect, white or pink, broadly spatulate, unlobed, 0.6–1 mm, margins entire;

stamens exserted 0.2–1.5 mm;

styles included from 1 mm to exserted 1.1 mm, 1–3.5 mm, to 0.1 mm diam; (stigmas from 0.5 mm included to 1.1 mm exserted).

Capsules

ovoid, 4–5 mm, beaks divergent, not papillose.

ovoid, 4–7 mm, beaks divergent, not papillose.

Seeds

black, fusiform, 0.5 mm.

dark brown, ellipsoid, 0.5–0.8 mm.

2n

= 14.

= 14.

Heuchera glomerulata

Heuchera caroliniana

Phenology Flowering May. Flowering Apr–Jun.
Habitat Shaded, rocky slopes Rich upland woods on base-saturated substrates, basic dikes and basic rock outcroppings
Elevation 1300-2000 m (4300-6600 ft) 30-300 m (100-1000 ft)
Distribution
from FNA
AZ; NM
[BONAP county map]
from FNA
NC; SC; VA
[BONAP county map]
Discussion

Heuchera glomerulata occurs in the Chiricahua and Pinaleno mountains of southeastern Arizona and in New Mexico.

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

The geographic range of Heuchera caroliniana is contiguous with and appears to be a southern extension of that of H. pubescens. Heuchera americana var. americana occurs in counties adjacent to the range of H. caroliniana but they are sympatric only along the boundary; intergradation between the two is infrequent. Mixed populations of H. caroliniana and H. americana var. americana have not been seen.

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

Source FNA vol. 8, p. 103. FNA vol. 8, p. 95.
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. elegans, H. glabra, 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. chlorantha, H. cylindrica, H. eastwoodiae, 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
Synonyms H. americana var. caroliniana
Name authority Rosendahl: Minnesota Stud. Pl. Sci. 2: 155. (1936) (Rosendahl Butters & Lakela) E. F. Wells: Rhodora 81: 575. (1979)
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